Product catalogue 2008

Relays with forcibly 

guided contacts

2

Depending on the type of relay, our 
production sequences are fully or 
partly automated, whereby highest 
quality is also guaranteed in the few 
manual operations. All products are 
made exclusively at our factory in 
Bad Ragaz, Switzerland.

The company   

ELESTA relays GmbH established in 
the Swiss town of Bad Ragaz is one 
of the leading producers in the field 
of safety relays with forcibly guided 
contacts. A very comprehensive pro-
gramme of safety relays enables 
ELESTA relays to offer the right 
product for just about all application 
areas. 
Specializing in relays with forcibly 
guided contacts, ELESTA relays 
impresses its customers and the 
market over and over again with 
innovation which sets distinct bench-
marks in the world of safety relays. 

Products   

Relays made by ELESTA are used in 
safety applications all over the world. 
The application areas are highly 
diverse and range from e.g. emer-
gency-off switching devices over 
transport systems (lifts, escalators, 
etc.) right to complex machine con-
trols. The focus is on ELESTA relays 
wherever humans and expensive 
equipment need to be protected 
from injuries and damage, respec-
tively.

ELESTA relays attaches great 
importance to quality. With a rigid 
quality programme applied during 
the entire production process and 
100% inspection before delivery we 
combine “Safety without compro-
mises“ and “Quality without com-
promises“. 

ELESTA relays - Swiss High-Tech  

Injection moulding die

Coil fabrication

Assembly station

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

3

Safety requirements   

Relays with forcibly guided contacts 
are used in safety-oriented applica-
tions for the decoupling of differ-
ent voltage potentials. These relays 
permit implemention of self-moni-
toring systems. Complying with 
the European standard EN50205, 
a relay with forcibly guided con-
tacts consists of at least one N.C. 
and one N.O. contact. Break and 
make contact must never be closed 
at the same time during the entire 
life of the relay. In case of a fault 
the contact gap must be at least 
0.5 mm. Additionally, the insula-
tion values are subject to higher 
standards and pollution degree 2 
is defined for relays with forcibly 
guided contacts. For the contact 
spring assemblies and other con-
ducting parts in the relay it must be 
ensured that no short circuits or con-
ducting connections result in case 
such parts should ever fracture or 
become loose. 

Our strengths   

As an acknowledged specialist in 
the production of relays with forci-
bly guided contacts ELESTA relays 
offers its customers a comprehen-
sive range covering virtually all appli-
cation cases. Permanent observa-
tion of the market, the participation 
in standardization committees and 
a close cooperation with suppliers, 
research institutions and directly 
with the users enable us to offer 
our clientele innovative products 
to suit their requirements in good 
time. With our outstanding custom-
er support, high flexibility and on 
time deliveries we provide the serv-
ices which buyers of such products 
rightly expect. Our strengths are:

• Relays for switching currents from 

5mA to 16A 

• 2 to 10 contacts 
• Minimum coil capacities
• Minimum space requirements
• Wide coil working ranges
• High insulation values 
• Customized relay variants
• RoHS-conforming and safe at higher 

solder process temperatures

• Reliable and rapid support
• Short delivery times
 

All statements made in this catalogue are 

believed to be true and are not legally binding.

We reserve the right to make technical altera-

tions. 

 in performance and safety

Set of contacts 

Set of contacts with actuator

Open relay

Customer value   

With ELESTA relays, however, the 
high quality is not only reflected in 
the products. Our maxim must stand 
up to highest demands also in the 
close cooperation with our custom-
ers. The majority of our deliveries, 
for example, are shipped within one 
week from receipt of the order, and 
we promise to deal with your techni-
cal enquiries within 24 hours. 

An intensive cooperation with our 
customers is very important to us. 
Our specialists are ready to support 
you in the choice of the correct 
relays for your application, train your 
personnel in matters of safety relays 
and make their know-how available 
to you in complex cases.

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

4

SIR 4 Contacts

SIR 4 Contacts „

P

ower“

SIR 4 Contacts sensitive

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/control contacts and 

output contacts (> 10mm) as well 

as protective separation between 

the output contacts themselves  

(> 8mm)

- 4 contacts for 10mA...10A

SIS 3 Contacts
SIS 3 Contacts sensitive

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/control contact and 

output contacts (> 8mm).

- 3 contacts for 5mA...6A

SIS 4 Contacts

- PCB relay with forcibly guided 

contacts and protective separa-

tion between coil/control contacts 

and output contacts (> 8mm) and 

output contacts in one row  

(> 5.5mm).

- 4 contacts for 5mA...6A

Products for every application –  

page 7-8

page 9

SIM 2 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil and contacts (leakage 

and creeping distances > 14mm); 

protective separation between left 

and right contact side (leakage and 

creeping distances > 5.5mm)

- 2 contacts for 10mA...8A

page 17

SIR 8 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/contacts (> 10mm) 

and contacts in one row (> 8mm) 

and as left to right contact side (> 

10mm)

- 8 contacts for 10mA...10A

page 26

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIS 2 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/control contact and 

output contacts (> 10mm).

- 2 contacts for 5mA...6A

page 6

SIR 6 Contacts
SIR 6 Contacts sensitive

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/control contacts and 

output contacts (> 10mm) as well 

as protective separation between 

the output contacts themselves  

(> 8mm)

- 6 contacts for 10mA...10A

page 24-25

page 21-23

SGR282Z (2 CO)
SGR282Z (2 CO) sensitive

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil and contacts (leakage 

and creepage distance > 14mm); 

protective separation between the 

contacts facing each other

- 2 change-over contacts for 10mA...6A

SIR282 (2 CO)
SIR282 (2 CO) sensitive

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil and contacts (leakage 

and creepage distance > 14mm); 

protective separation between the 

contacts facing each other 

- 2 change-over contacts for 10mA...8A

page 15-16

page 13-14

5

SIS 6 Contacts

- PCB relay with forcibly guided 

contacts and protective separa-

tion between coil/control contacts 

and output contacts (> 8mm) and 

output contacts in one row  

(> 5.5mm).

- 6 contacts for 5mA...6A

 multifunctional and safety

page 10

SIM 3 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil and contacts (leakage 

and creeping distances > 14mm); 

protective separation between left 

and right contact side (leakage and 

creeping distances > 5.5mm)

- 3 contacts for 10mA...8A

page 18 SIM 4 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil and contacts (leakage 

and creeping distances > 14mm); 

protective separation between left 

and right contact side (leakage and 

creeping distances > 5.5mm)

- 4 contacts for 10mA...8A

page 19

SIR 10 Contacts

- PCB relay with forcibly guided 

contacts and protective separa-

tion between coil/control contacts 

and output contacts (> 8mm) and 

output contacts in one row (> 8mm) 

and as left to right contact side  

(> 10mm)

- 10 contacts for 10mA...10A

page 27 SIP 6 Contacts

- PCB relay with forcibly guided 

contacts and protective separa-

tion between coil/control contacts 

and output contacts (> 8mm) and 

output contacts in one row  

(> 8mm).

- 2 control contacts for 5mA...6A

- 4 output contacts for 10mA...16A

page 28

SLR 4 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/control contacts and 

output contacts (> 8mm) as well as 

protective separation between the 

output contacts themselves  

(> 10mm)

- 4 contacts for 10mA...10A

page 20

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

pages 29-31

Certificate

Accessories

- Plug sockets for print assembly or 

DIN rail assembly and module

page 32

SIF 4 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/contacts  (> 5.5mm) 

and contacts side by side 

 (> 5.5mm)

- 4 contacts for 5mA...8A

page 11 SIF 6 Contacts

- PCB relay with forcibly guided con-

tacts and protective separation 

between coil/contacts  (> 5.5mm) 

and contacts side by side 

 (> 5.5mm)

- 6 contacts for 5mA...8A

page 12

SIF 4 Contacts

- PCB relay with forcibly guided con-

page 11

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SIF 6 Contacts

PCB relay with forcibly guided con

page 12

Made in 

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24V

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6

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

-  PCB relay with forcibly guided contacts

-  Protective separation between control and 

load circuit (leakage and creepage distances 

> 10mm)

-  EN 50205, type A

-  Double and reinforced insulation between 

the contacts

-  Contact mounting: SIS112  1NO/1NC

-  Small external dimensions

-  Mean coil power 0.27W

-  Holding power 0.08 W

-  for Railway Applications: EN 50155

SIS 2 Contacts

U

U

B

N

Ambient temperature °C

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

3,0

SIS112

Control

 side

Output

 side

Double or reinforced insulation

Basic insulation

10

50

100

1000

500

10000

5000

0,1

0,5

1

2

3 4 5

10

6 789

DC1: 24V

DC13: 24V

AC1: 230V

AC15: 230V

No. of operations x 1

0

0

0

Switching current (A)

Current (A)

Voltage (VDC)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

0

50

100

150

200

250

1

2

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3,5

> 0,5

54,9

91

± 10

6

< 4,2

> 0,6

46,1

130

± 10

9

< 6,3

> 0,9

30,5

295

± 10

12

< 8,4

> 1,2

23,0

520

± 10

18

< 12,6 > 1,8

15,2

1‘180

± 10

24

< 16,8  > 2,4

11,4

2‘100

± 10

48

< 33,6 > 4,8

5,7

8‘350

± 13

60

< 42,0 > 6,0

4,5

13‘100

± 15

Contact material 

AgCuNi+0,2-0,4

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered) <100m

Ω

 

/28V/100 mA 

* Guide values

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time (NO closed) 

typically 10ms

Drop-out time** (NC closed) 

typically 3ms

Bounce time of NO contact 

typically 2ms

Bounce time of NC contact 

typically 15ms

Shock resistance 16ms  

NO contact 17g 

 

NC contact 7g

Vibration resistance 

NO contact 7g 

10-200Hz 

NC contact 2g

Test voltage 

coil/control contact 

2’500Veff  1min

Test voltage 

5’000Veff  1min 

coil- control contact/output contact 

Test voltage contact open 

1’500Veff  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175

Weight approx. 

18g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT III

Solder bath temperature 

270°C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 6A 

circuiting gL/gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil to control contact: Basic insulation

Coil/control contact to output contact: 

Double or reinforced insulation > 10mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 5

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics (determined 

acc. to DIN EN 60947-4-1 / EN 60947-5-1):

AC 1:  250V/6A

AC 15:  230V/3A

DC 1:  24V/6A

DC 13:  24V/5A/0,1 Hz

UL 508: B300 / R300

Contact lifetime

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

Ordering example

Relay data

General data

Diagrams

29,2 

0,2 

16,5

0,4 

0,3 

0,4 

2,8 

16,6 

1 

2,2 

18,7 

6 

2,3 

3,3 

3,3 

16,6 

11 

2,3 

4,2 

15 

7,7 

2,3 

3,3 

29,2 

10 

[mm] 

Ø

1,3 

1,6 

1,6 

1,6 

1,6 

±0,2

SIS 1 1 2 24VDC 

Soldering tags 

Number of NC contacts 

Number of NO contacts 

Type designation 

Coil voltage

7

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

29,2 

2 25,2 

2 

0,2 

0,4 

0,3 

0,4 

2,8

16,6 

1 

0,2 

2,2 

6,5  12,2  6 

2,3 

3,3 

3,3 

1

6

,6

 

11 

2,3 

4,2 

6,5  8,5  7,7 

2,3 

3,3 

29,2 

10 

[mm] 

Ø

1,3 

16,5

±0,2

SIS 3 Contacts

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

Ambient temperature °C 

U 

U 

B 

N 

70

SIS212 

Control

 side

Output

 side

Double or reinforced insulation 

Basic insulation 

10

50

100

1000

500

10000

5000

0,1

0,5

1

2

3 4 5

10

6 7 89

DC1:

 

24V

DC13:

 

24V

AC1:

 

230V

AC15:

 

230V

No. of operations x 1

0

0

0

Switching current (A)

Current (A)

Voltage (VDC)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

0

50

100

150

200

250

1

2

Relay data

General data

Diagrams

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3,5

> 0,5

120,0

41,5

± 10

9

< 6,3

> 0,9

66,6

135

± 10

12

< 8,4

> 1,2

50,0

240

± 10

18

< 12,6 > 1,8

33,3

540

± 10

24

< 16,8  > 2,4

25,0

960

± 10

48

< 33,6 > 4,8

12,5

3’840

± 10

60

< 42,0 > 6,0

10,0

6’000

± 13

110

< 77,0 > 11,0

5,4

20’150

± 15

Contact material 

AgCuNi+0.2-0.4

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered)  < 100m

Ω

/

28V/100mA 

* Guide values

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time (all NO closed)  typically 10ms

Drop-out time** (all NC closed)  typically 3ms

Bounce time of NO contact 

typically 2ms

Bounce time of NC contact 

typically 15ms

Shock resistance 16ms  

NO contact 17g 

 

NC contact 10g

Vibration resistance 

NO contact 7g 

10-200Hz 

NC contact 3g

Test voltage 

coil/control contact 

2’500Veff  1min

Test voltage 

4’000Veff  1min 

output contacts as against each other 

Test voltage contact open 

1’500Veff  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT III

Solder bath temperature 

270°C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 6A 

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil to control contact: Basic insulation

Coil/control contact to output contacts: 

Double or reinforced insulation > 8mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 5

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics (determined 

acc. to DIN EN 60947-4-1 / EN 60947-5-1):

AC 1:  250V/6A

AC 15:  230V/3A

DC 1:  24V/6A

DC 13:  24V/5A/0,1 Hz

UL 508: B300 / R300

Contact lifetime

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

-  PCB relay with forcibly guided contacts

-  Protective separation between control and 

load circuit (leakage and creepage distance 

> 8mm)

-  EN 50205, type A

-  Double and reinforced insulation between 

the contacts

-  Contact mounting: SIS212  2NO/1NC

-  Small external dimensions

-  Mean coil power 0.6W

-  Holding power 0.18 W

Ordering example

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SIS  2 1 2 24VDC

8

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIS 3 Contacts sensitive

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

Ambient temperature °C 

U 

U 

B 

N 

70

SIS212 

Control

 side

Output

 side

Double or reinforced insulation 

Basic insulation 

10

50

100

1000

500

10000

5000

0,1

0,5

1

2

3 4 5

10

6 7 89

DC1:

 

24V

DC13:

 

24V

AC1:

 

230V

AC15:

 

230V

No. of operations x 1

0

0

0

Switching current (A)

Current (A)

Voltage (VDC)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

0

50

100

150

200

250

1

2

29,2 

2 25,2 

2 

0,2 

0,4 

0,3 

0,4 

2,8

16,6 

1 

0,2 

2,2 

6,5  12,2  6 

2,3 

3,3 

3,3 

1

6

,6

 

11 

2,3 

4,2 

6,5  8,5  7,7 

2,3 

3,3 

29,2 

10 

[mm] 

Ø

1,3 

16,5

±0,2

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

-  PCB relay with forcibly guided contacts

-  Protective separation between control and 

load circuit (leakage and creepage distance 

> 8mm)

-  EN 50205, type A

-  Double and reinforced insulation between 

the contacts

-  Contact mounting: SIS212  2NO/1NC

-  Small external dimensions

-  Mean coil power 0.4W

-  Holding power 0.14 W

-  For Railway Applications: EN 50155

Contact material 

AgCuNi+0.2-0.4

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered) <100m

Ω

 

/28 V/100mA 

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3,75 > 0,5

80,0

62,5

± 10

6

< 4,5

> 0,6

66,6

90

± 10

9

< 6,75 > 0,9

44,5

202

± 10

12

< 9,0

> 1,2

33,3

360

± 10

18

< 13,5  > 1,8

22,2

810

± 10

24

< 18,0 > 2,4

16,6

1’440

± 10

48

< 36,0 > 4,8

8,3

5’750

± 13

60

< 45,0 > 6,0

6,6

9’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time (all NO closed)  typically 10ms

Drop-out time** (all NC closed)  typically 3ms

Bounce time of NO contact 

typically 2ms

Bounce time of NC contact 

typically 15ms

Shock resistance 16ms  

NO contact 17g 

 

NC contact 10g

Vibration resistance 

NO contact 7g 

10-200Hz 

NC contact 3g

Test voltage 

coil/control contact 

2’500Veff  1min

Test voltage 

4’000Veff  1min 

output contacts as against each other 

Test voltage contact open 

1’500Veff  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT III

Solder bath temperature 

270°C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 6A 

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil to control contact: Basic insulation

Coil/control contact to output contacts: 

Double or reinforced insulation > 8mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 5

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics (determined 

acc. to DIN EN 60947-4-1 / EN 60947-5-1):

AC 1:  250V/6A

AC 15:  230V/3A

DC 1:  24V/6A

DC 13:  24V/5A/0,1 Hz

UL 508: B300 / R300

Contact lifetime

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A

Relay data

General data

Diagrams

Ordering example

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

sensitive coil

SIS  2 1 2 24VDC SEN

9

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIS 4 Contacts

Ambient temperature °C

U

U

B

N

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

3,0

Double or reinforced insulation for 
mains circuits
> 8mm leakage distance,
> 5,5mm creeping distance

Basic insulation
> 4mm leakage and creeping distance

Double or reinforced insulation for safety 
low voltage
> 8mm leakage and creeping distance

SIS222

SIS312

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

16,6

48

0,3

0,4

13

18,7

5

7

13

15

8,7

5

2,3

2

10

2,3

4

11 

3,3

2,3 

[mm]

16,5

±0,2

16,6

1

48

0,3

0,4

6,5

16,7

8,5

12

6,5

13

8,5

13,7

2,3

2

10

2,3

4

11 

3,3 

2,3 

SIS222 

SIS312

Ø

1,3

Ø

1,3

16,5

±0,2

0,2

2,8

0,2

2,8

1

Relay data

General data

Diagrams

Standard coils for direct current 
(other voltages on request)

-  PCB relay with forcibly guided contacts

-  Protective separation between control and 

load circuit (leakage and creepage distance 

> 8mm)

-  EN 50205, type A

-  Double and reinforced insulation between 

the contacts

- Contact mounting: 

 

SIS312 3NO/1NC  SIS222 2NO/2NC

-  Small external dimensions

-  Mean coil power 0.5W

-  Holding power 0.15 W

-  For Railway Applications: EN 50155

10

50

100

1000

500

10000

5000

0,1

0,5

1

2

3 4 5

10

6 7 89

DC1:

 

24V

DC13:

 

24V

AC1:

 

230V

AC15:

 

230V

No. of operations x 1

0

0

0

Switching current (A)

Contact lifetime

Contact material 

AgCuNi+0,2-0,4

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA 

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out  volt

age  

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,5

> 0,5

100

50

± 10

9

6,3

> 0,9

56,2

160

± 10

12

8,4

> 1,2

42,1

285

± 10

18

12,6

> 1,8

28,1

640

± 10

24

16,8

> 2,4

20,8

1’150

± 10

48

33,6

> 4,8

10,4

4’600

± 13

60

42,0

> 6,0

8,3

7’200

± 13

110

77,0

> 11,0

4,5

24’200

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time (all NO closed)  typically 15ms

Drop-out time** (all NC closed)  typically 5ms

Bounce time of NO contact 

typically 2ms

Bounce time of NC contact 

typically 15ms

Shock resistance 16ms 

NO contact 10g 

 

NC contact 10g

Vibration resistant 

NO contact 10g 

10-200Hz 

NC contact 4g

Test voltage  

coil/control contacts*** 

2’500Veff  1min

Test voltage 

4’000Veff  1min 

output contacts as against each other 

Test voltage contact open 

1’500Veff  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175

Weight approx. 

30g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT III

Solder bath temperature 

270°C/5s

Thermal resistance 

45K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 6A 

circuiting gG 

(pre-fuse)

**   without spark suppression

*** SIS222 4000Veff 1min

Insulation terms

Coil/control contacts: Basic insulation SIS312  

Double or reinforced insulation > 8mm SIS222

Coil/control contacts to output contacts: 

Double or reinforced insulation > 8mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 5

Insulation class IEC 60664-1 

250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Circuit diagram (view on relay upper side)

Ordering example

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A / 3 contacts each with 4A

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating of 

other components.  

Continuous duty 100%.

Excitation voltage range

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

Max. switching characteristics (determined 

acc. to DIN EN 60947-4-1 / EN 60947-5-1):

AC 1:  250V/6A 

AC 15: 

230V/3A

DC 1:  24V/6A 

DC 13:  24V/5A/0.1 Hz

UL 508: B300 / R300

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

S I S   3   1  2  24VDC

10

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIS 6 Contacts

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

Ambient temperature °C 

U 

U 

B 

N 

70

Double or reinforced insulation for 
mains circuits
> 8mm leakage distance,
> 5,5mm creeping distance

Basic insulation
> 4mm leakage and creeping distance

Double or reinforced insulation for 
safety low voltage
> 8mm leakage and creeping distance

SIS422

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

16,6

1

48

0,3

0,4

6,5 6,5

10,2

8,5

5

7

6,5 6,5 6,5

8,5

8,7

5

2,3

2

10

2,3

4

11

3,3

2,3

[mm]

Ø

1,3

16,5

±0,2

0,2

2,8

Standard coils for direct current 
(other voltages on request)

-  PCB relay with forcibly guided contacts

-  Protective separation between control and 

load circuit (leakage and creepage distance 

> 8mm)

-  EN 50205, type A

-  Double and reinforced insulation between 

the contacts

- Contact mounting: SIS422 

4NO/2NC

-  Small external dimensions

-  Mean coil power 0.66W

-  Holding power 0.20W

-  For Railway Applications: EN 50155

10

50

100

1000

500

10000

5000

0,1

0,5

1

2

3 4 5

10

6 7 89

DC1:

 

24V

DC13:

 

24V

AC1:

 

230V

AC15:

 

230V

No. of operations x 1

0

0

0

Switching current (A)

Contact lifetime

Contact material 

AgCuNi+0.2-0.4

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered) < 100m

Ω

 

/ 28 V / 100mA 

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,5

> 0,5

133

37,5

± 10

9

6,3

> 0,9

73,7

122

± 10

12

8,4

> 1,2

55,8

215

± 10

18

12,6

> 1,8

37,1

485

± 10

24

16,8

> 2,4

29,7

860

± 10

48

33,6

> 4,8

13,9

3’450

± 10

60

42,0

> 6,0

11,1

5’400

± 13

110

77,0

> 11,0

6,0

18’300

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time (all NO closed)  typically 15ms

Drop-out time** (all NC closed)  typically 5ms

Bounce time of NO contact 

typically 2ms

Bounce time of NC contact 

typically 15ms

Shock resistance 16ms 

NO contact 10g 

 

NC contact 9g

Vibration resistant 

NO contact 10g 

10-200Hz 

NC contact 3g

Test voltage  

coil/control contacts 

2’500Veff  1min

Test voltage 

4’000Veff  1min 

output contacts as against each other 

Test voltage contact open 

1’500Veff  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175

Weight approx. 

35g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT III

Solder bath temperature 

270°C/5s

Thermal resistance 

45K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 6A 

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil/control contacts: Basic insulation

Coil/control contacts to output contacts:  

Double or reinforced insulation > 8mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 5

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A

3 contacts each with 4A

4 contacts each with 3A

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

Relay data

General data

Diagrams

Ordering example

Max. switching characteristics (determined 

acc. to DIN EN 60947-4-1 / EN 60947-5-1):

AC 1:  250V/6A 

AC 15: 

230V/3A

DC 1:  24V/6A 

DC 13:  24V/5A/0.1 Hz

UL 508: B300 / R300

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

S I S   4  2  2  24VDC

Circuit diagram (view on relay upper side)

11

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIF 4 Contacts

Relay data

General data

Diagrams

Circuit diagram (view on relay upper side)

-  PCB relay with forcibly guided contacts

-  Protective separation between coil and 

contacts (> 5.5 mm) and contacts side by 

side (> 5.5 mm)

-  EN 50205 type A

-  Double and reinforced insulation

-  SMD arrangement below relay possible

- Contact mounting:  SIF312  3AK/1RK

-  Compact height: only 10.9mm

-  Mean coil power 0.70W

-  Holding power 0.21 W

-  For Railway Applications: EN 50155

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

VDC

Drop-out v

olt

age 

 

at 20 °C VDC

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3.5

> 0.5

140.0

35.7

± 10

12

< 8.4

> 1.2

58.5

205

± 10

18

< 12.6 > 1.8

39.1

460

± 10

20

< 14.0 > 2.0

35.0

570

± 10

24

< 16.8  > 2.4

29.2

820

± 10

48

< 33.6 > 4.8

14.6

3‘280

± 10

60

< 42.0 > 6.0

11.7

5‘100

± 13

110

< 77,0 > 11,0

6,3

17‘250

± 13

Contact material 

AgCuNi + 0.2 

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity  250VAC 8A AC1 2‘000VA

Electr. life AC1 (360 S/h) 

approx.100‘000

Inrush current max 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 8A

Switching capacity range*   60mW to 2‘000W (VA)

Contact resistance (as delivered) < 100m

Ω

/28 V/100mA 

* Guide values

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 12ms

Drop-out time** 

typically 5ms

Bounce time of NO contact 

typically 3ms

Bounce time of NC contact 

typically 12ms

Shock resistance   

NO contact 15g 

 

NC contact 6g

Vibration resistance 

NO contact 10g 

10-200Hz 

NC contact 2g

Test voltage  

coil to contacts 

4‘000V

eff

  1min

Test voltage 

4’000V

eff

  1min 

contacts against each other 

Test voltage contact open 

1’500V

eff

  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI  175

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

 RT II

Solder bath temperature 

270°C/5s

Thermal resistance 

60K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to  

1‘000A SCPD 10A 

short circuiting 

gL/gG (pre-fuse)

** without spark suppression

Insulation terms

Double or reinforced insulation >5.5mm  

between all current circuits

Tests, regulations

Approvals  

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 6

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics 

(DIN EN 60947-4-1/   EN 60947-5-1):

AC 1:  250V/8A

AC 15:  230V/6A

DC 1:  24V/8A

DC 13:  24V/5A/0.1Hz 

UL508: B300/R300

Maximal contact load at AC 1with 230V:

2 contacts each with 8A

3 contacts each with 6A

Contact lifetime

1) Max. excitation voltage with contact load < 6A 

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

Load limit curve with direct current 
(Resistive load)

Ordering example

Ma

de 

in S

witz

erlan

d    060

2

c

us

S

E-Nr

.  301053

SIF312 

  24

V

8A

 250V~AC1

DC

ww

w.elest

arelay

s.com

43

44

23

24

A1

A2

34

33

12

11

Type A

Standard coils for direct current 
(other voltages on request)

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SIF  3 1 2  24VDC 

SIF-312

A1

A2

11

12

23

24

33

34

43

44

Double or reinforced insulation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

       

         

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

         

 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 
 
 
 
      
      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

100

1000

10000

10

No. of operations x 1000

0.5

0.1

1

2

3 4 5 6 7 8 910

Switching current (A)

500

300

200 

100 

70 

50 

30 

20 

10 

0.1      0.2   0.3   0.5  0.7   1.0         2      3   4  5 6 7 8  10 

Current (A)

 

 

 

 

 

 

     

 

 

 

 

 

     

10 W 

20 W 

40 W 

60 W 

80 W 

100 W

150 W

200 W

250 W

300 W

V

oltage (VDC)

0 

0 

20 40 60 

2.0 

1.5 

1.0 

0.5 

80 

1 0 0 

2.5

  

  

2 

1 

Ambient temperature °C 

U 

B 

N 

U 

70

1

4,2

41

10,9

1,5

1,6

37,8

2,2

2,9

7,6

5,1

29,4

23,2

3,1

3,1

4,2

1,2

15,8

18,2

23,2 

7,5 7,5 7,5 

6,4

21

4,2 

4,2 

3,1 

3,1 

15,4 

3,1

1,5 1,6 

0,3

[mm]

10,5

4,8

Ø1,3

28,3 

7,6

5,1

*

*

*

*

*Do not drill when SMD arrangement.

12

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIF 6 Contacts

Relay data

General data

Diagrams

Circuit diagram (view on relay upper side)

-  PCB relay with forcibly guided contacts

-  Protective separation between coil and 

contacts (> 5.5 mm) and contacts side by 

side (> 5.5 mm)

-  EN 50205 type A

-  Double and reinforced insulation  

-  SMD arrangement below relay possible

- Contact mounting:  SIF422 4NO/2NC

-  Compact height: only 10.9mm

-  Mean coil power 0.66W

-  Holding power 0.20 W

-  For Railway Applications EN50155

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

VDC

Drop-out v

olt

age 

 

at 20 °C VDC

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3.5

> 0.5

133.3

37.5

± 10

12

< 8.4

> 1.2

55.8

215

± 10

18

< 12,6 > 1,8

38,9

462

± 10

20

< 14.0 > 2.0

33.3

600

± 10

24

< 16.8 > 2.4

27.5

870

± 10

48

< 33.6  > 4.8

13.8

3‘460

± 10

60

< 42.0 > 6.0

11.1

5‘400

± 13

110

< 77.0 > 11.0

6.0

18‘300

± 15

Contact material 

AgCuNi + 0.2 

μ

m Au

Type of contact  

Single contact 

 

with notched crown

Rated switching capacity  250VAC 8A AC1 2‘000VA

Electr. life AC1 (360 S/h) 

approx.100‘000

Inrush current max. 

30A for 20ms

Switching voltage range 

5 to 250VDC/VAC

Switching current range* 

5mA to 8A

Switching capacity range*   60mW to 2‘000W (VA)

Contact resistance (as delivered)) < 100m

Ω

 

/ 28 V / 100mA 

* Guide values

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 20ms

Drop-out time**  

typically 8ms

Bounce time of NO contact 

typically 3ms

Bounce time of NC contact 

typically 12ms

Shock resistance   

NO contact 10g 

 

NC contact 6g

Vibration resistance 

NO contact 10g 

10-200Hz 

NC contact 2g

Test voltage  

coil to contacts 

4‘000V

eff

  1min

Test voltage 

 

contacts against each other  4’000V

eff

  1min

Test voltage contact open 

1’500V

eff

  1min

Insulation resistance at Up 500V 

10

8

 

Ω

Creepage resistance 

CTI 175 

Weight approx. 

35g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II 

Solder bath temperature 

270°C/5s

Thermal resistance 

47K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to   

1‘000A SCPD 10A 

short circuiting 

gL/gG (pre-fuse)

** without spark suppression

Insulation terms

Double or reinforced insulation >5.5mm 

between all current circuits

Tests, regulations

Approvals  

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 6

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Ordering example

[mm]

10,9 

3,1 

2,9 

2,2 

53,6 

7,5

7,5

15,4

1,6 

1,5 

3,1 

3,1

4,1 

4,1 

15,8 

15,8 

15,8 

33,5 

30,4 

1,6 1,5 

1 

0,3

3,1 

47,4 

Ø1,3

0,5

0,4

1,2

3,1

3,3

*

*

*

*

Max. switching characteristics 

(DIN EN 60947-4-1/ EN 60947-5-1):

AC 1:  250V/8A

AC 15:  230V/6A

DC 1:  24V/8A

DC 13:  24V/5A/0.1Hz

UL508: B300/R300

Maximal contact load at AC 1 with 230V:

2 contacts each with 8A

3 contacts each with 6A

4 contacts each with 4.5A

Contact lifetime

1) Max. excitation voltage with contact load < 6A 

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

Load limit curve with direct current 
(Resistive load)

Made in 

Switzerland 

 0549

c

us

S

E-Nr

.  300997

SIF422

    

24V

8A

 250V~AC1

DC

www

.elestarelays.com

53

54

63

64

34

33

43

44

12

11

21

22

A1

A2

Ty

pe

 A

Standard coils for direct current
(other voltages on request)

SIF  4 2 2  24VDC 

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SIF-422

Double or reinforced insulation

A1

A2

12

22

11

21

34

44

33

43

54

64

53

63

500

300

200 

100 

70 

50 

30 

20 

10 

0.1      0.2   0.3   0.5  0.7   1.0         2      3   4  5 6 7 8  10 

Current (A)

 

 

 

 

 

 

     

 

 

 

 

 

     

10 W 

20 W 

40 W 

60 W 

80 W 

100 W

150 W

200 W

250 W

300 W

V

oltage (VDC)

0 

0 

20 40 60 

2.0 

1.5 

1.0 

0.5 

80 

1 0 0 

2.5

  

  

2 

1 

Ambient temperature °C 

U 

B 

N 

U 

70

*Do not drill when SMD arrangement.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

       

         

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

         

 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 
 
 
 
      
      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

100

1000

10000

10

No. of operations x 1000

0.5

0.1

1

2

3 4 5 6 7 8 910

Switching current (A)

13

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SGR282Z

Double or reinforced insulation

Control

 side

 

Output

 side

 

SGR282Z 

30,2

12,7

25,6

3,7

2,6

15

5

5

2,6

1

7,5

0,

3

2,5 / 2,54

Ø

 1,3

[mm]

10 000

1000

100

10

10

1.0

0.5

0.1

DC 1: 24V

5.0

AC 1: 230V

AC 15: 230V

DC 13: 24V

Switching current (A)

No. of operations x 1

0

0

0

Current (A)

Voltage (VDC)

0,6

0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Standard coils for direct current 
(other voltages on request)

-  PCB relay with forcibly guided contacts 

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation diagonally 

between left and right contact side (leakage 

and creeping distances > 5.5mm)

-  EN 50205, type B

-  2 CO contacts

-  Mean coil power 1 W

-  Holding power 0.31 W

Contact material 

AgCuNi

Type of contact 

Single contact

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

15A for 20ms

Switching voltage range   50 to 250 VDC/VAC

Switching current range* 

20mA to 6A

Switching current range** 

10mA to 6A

Switching capacity range* 0.12VA(W) to 1’500VA

Switching capacity range** 0.06VA(W) to 1’500VA

Contact resistance (as delivered) < 100m

Ω

 

/ 28 V / 100mA

*  Guide values

** Values for AgCuNi + 4-6 

μ

m Au

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

181,8

27,5

± 10

6

4,5

> 0,6

166,6

36

± 10

12

9,0

> 1,2

85,7

140

± 10

18

13,5

> 1,8

66,6

270

± 10

24

18,0

> 2,4

33,3

720

± 10

48

36,0

> 4,8

20,8

2’300

± 10

60

45,0

> 6,0

13,6

4’400

± 13

110

82,5

> 11,0

11,0

10’000

± 15

Circuit diagram (view on relay upper side)

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 1

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V1

Mechanical life 

> 50 x 10

6

 operations

Switching frequency, mechanical 

20Hz

Response time 

typically 12ms

Drop-out time*** 

typically 5ms

Bounce time of NO contact 

typically 4ms

Bounce time of NC contact 

typically 8ms

Vibration resistance  10-55Hz, AK 10g, RK 1.5g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

contact set/contact set 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 550

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II / RT III optionally

Solder bath temperature 

270°C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Resistance to  

1‘000A SCPD 6A 

short circuiting 

gL/gG (pre-fuse)

*** without spark suppression

Options, accessories

Contact material 

SGR282Z..VDC AgCuNi 

 

+4 - 6

μ

m Au

PCB socket, DIN rail socket 

see page 29

Wash-resistant with O-Ring

Sealed RT III 

on request

Insulation terms

Coil/contacts: Double or reinforced insulation 

> 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

Gold contacts with 4-6

μ

m layer thickness

When high voltages and currents are 

switched, the layer of gold is destroyed 

already after a few switching operations.  

Once the gold layer is damaged due to the 

switching of high loads, such a contact must 

not be used any more for signal and control 

current circuits.  

Safe contact making is then only possible at 

high loads with the formation of sparks. 

Contact lifetime for AgCuNi

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/3A, DC13: 24V/4A

UL 508: C300

Load limit curve with direct current

1) Inductive load, L/R 40 ms

2) Resistive load

Ambient temperature °C

U

U

B

N

0

0

40

60

2,0

1,5

1,0

0,5

1

2

80

100

20

Excitation voltage range

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.

Continuous duty 100%.

Ordering example

Relay data

General data

Diagrams

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A

Type designation
Coil voltage
Gold plating 4 - 6μm Au
Wash-resistant / with O-ring

SGR282Z    24VDC     AU6  08

14

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SGR282Z sensitive

Ambient temperature °C

U

U

B

N

0

0

40

60

2,0

1,5

1,0

0,5

1

2

80

100

20

Double or reinforced insulation

Control

 side

 

Output

 side

 

SGR282Z 

10 000

1000

100

10

10

1.0

0.5

0.1

DC 1: 24V

5.0

AC 1: 230V

AC 15: 230V

DC 13: 24V

Switching current (A)

No. of operations x 1

0

0

0

Current (A)

Voltage (VDC)

0,6

0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

30,2

12,7

25,6

3,7

2,6

15

5

5

2,6

1

7,5

0,

3

2,5 / 2,54

Ø

 1,3

[mm]

Relay data

General data

Diagrams

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

144,0

34,7

± 10

6

4,5

> 0,6

120,0

50

± 10

12

9,0

> 1,2

60,0

200

± 10

18

13,5

> 1,8

40,0

450

± 10

24

18,0

> 2,4

30,0

800

± 10

48

36,0

> 4,8

15,0

3’200

± 10

60

45,0

> 6,0

12,0

5’000

± 13

110

82,5

> 11,0

6,5

16’800

± 15

-  PCB relay with forcibly guided contacts 

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation diagonally 

between left and right contact side (leakage 

and creeping distances > 5.5mm)

-  EN 50205, type B

-  2 CO contacts

-  Mean coil power 0.7 W

-  Holding power 0.21 W

Contact material 

AgCuNi

Type of contact 

Single contact

Rated switching capacity 250VAC 6A AC1 1’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

15A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

20mA to 6A

Switching current range** 

10mA to 6A

Switching capacity range* 0.12VA(W) to 1’500VA

Switching capacity range** 0.06VA(W) to 1’500VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA

*  Guide values

** Values for AgCuNi + 4-6 

μ

m Au

Mechanical life 

> 50 x 10

6

 operations

Switching frequency, mechanical 

20Hz

Response time 

typically 12ms

Drop-out time*** 

typically 5ms

Bounce time of NO contact 

typically 4ms

Bounce time of NC contact 

typically 8ms

Vibration resistance  10-55Hz, AK 10g, RK 1.5g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

contact set/contact set 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 550

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II / RT III optionally

Solder bath temperature 

270°C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Resistance to  

1‘000A SCPD 6A 

short circuiting 

gL/gG (pre-fuse)

*** without spark suppression

Circuit diagram (view on relay upper side)

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 1

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V1

Insulation terms

Coil/contacts: Double or reinforced insulation 

> 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

Options, accessories

Contact material 

SGR282Z..VDC S AgCuNi 

 

+4 - 6

μ

m Au

PCB socket, DIN rail socket 

see page 29

Wash-resistant with O-Ring

Sealed RT III 

on request

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/3A, DC13: 24V/4A

UL508: C300

Contact lifetime for AgCuNi

1) Inductive load, L/R 40 ms

2) Resistive load

Gold contacts with 4-6

μ

m layer thickness

When high voltages and currents are 

switched, the layer of gold is destroyed 

already after a few switching operations.  

Once the gold layer is damaged due to the 

switching of high loads, such a contact must 

not be used any more for signal and control 

current circuits.  

Safe contact making is then only possible at 

high loads with the formation of sparks. 

Load limit curve with direct current

Excitation voltage range

Standard coils for direct current 
(other voltages on request)

No heat accumulation due to intrinsic heating 

of other components.

Continuous duty 100%.

Ordering example

Maximal contact load at AC 1 with 230V:

2 contacts each with 6A

SGR282Z    24VDC SEN AU6 08

Type designation
Coil voltage
sensitive coil
Gold plating 4 - 6μm Au
Wash-resistant / with O-ring

15

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

Relay data

General data

Diagrams

SIR282

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

Ambient temperature °C

U

U

B

N

SIR282 

Double or reinforced insulation

Control

 side

 

Output

 side

 

30,2 

12,7 

25,6

3,7

2,6 

15 

5 

5 

2,6 

1 

7,5 

0,3

2,5 / 2,54 

Ø

 1,3 

[mm] 

10

 

000

1000

100

10

10

5.0

1.0

0.5

0.1

No. of operations x 1

0

0

0

Switching current (A)

DC

 

1:

 

24V

DC

 

13:

 

24V

AC

 

1:

 

230V

AC

 

1:

 

400V

AC

 

15:

 

230V

No. of operations x 1

0

0

0

Switching current (A)

10

 

000

1000

100

10

10

5.0

1.0

0.5

0.1

DC

 

1:

 

24V

DC

 

13:

 

24V

AC

 

1:

 

230V

AC

 

15:

 

230V

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

181,0

27,5

± 10

6

4,5

> 0,6

166,0

36

± 10

12

9,0

> 1,2

85,7

140

± 10

18

13,5

> 1,8

66,6

270

± 10

24

18,0

> 2,4

33,3

720

± 10

48

36,0

> 4,8

20,8

2’300

± 10

60

45,0

> 6,0

13,6

4’400

± 13

110

82,5

> 11,0

11,0

10’000

± 15

-  PCB relay with forcibly guided contacts 

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation diagonally 

between left and right contact side (leakage 

and creeping distances > 5.5mm)

-  EN 50205, type B

- 2 CO contacts

- Mean coil power 1W

-  Holding power 0.31 W

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Single contact

Rated switching capacity 250VAC 8A AC1 2’000VA

Electr. life AC1 (360 cycles/h)  approx.100’000 

Inrush current max. 

15A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 8A

Switching capacity range* 0.12VA(W) to 2’000VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA 

* Guide values

Standard coils for direct current 
(other voltages on request)

Mechanical life 

> 50 x 10

6

 operations

Switching frequency, mechanical 

20Hz

Response time 

typically 12ms

Drop-out time** 

typically 5ms

Bounce time of NO contact 

typically 4ms

Bounce time of NC contact 

typically 8ms

Vibration resistance  10-55Hz, AK 10g, RK 1.5g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

contact set/contact set 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 550

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II / RT III optionally

Solder bath temperature 

270°C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Resistance to  

1‘000A SCPD 10A 

short circuiting 

gL/gG (pre-fuse)

** without spark suppression

Circuit diagram (view on relay upper side)

Options, accessories

Wash-resistant  with O-Ring

Sealed RT III 

on request

PCB socket, DIN rail socket 

see page 29

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 1

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V1

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/5A, DC13: 24V/6A; UL 508: C300

Maximal contact load at AC 1 with 230V:

2 contacts each with 8A

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime for NO contact

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/2A, DC13: 24V/3A

Contact lifetime for NC contact

Load limit curve with direct current

Excitation voltage range

Insulation terms

Coil/contacts: Double or reinforced insulation 

> 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

No heat accumulation due to intrinsic heating of 

other components. Continuous duty 100%.

SIR282               24VDC  08

  

Type designation
Coil voltage 
Wash-resistant / with O-ring

Ordering example

16

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIR282 sensitive

Ambient temperature °C

U

U

B

N

0

0

40

60

2,0

1,5

1,0

0,5

1

2

80

100

20

SIR282 

Double or reinforced insulation

Control

 side

 

Output

 side

 

30,2 

12,7 

25,

6

3,7

2,6 

15 

5 

5 

2,6 

1 

7,5 

0,

3

2,5 / 2,54 

Ø

 1,3 

[mm] 

10

 

000

1000

100

10

10

5.0

1.0

0.5

0.1

No. of operations x 1

0

0

0

Switching current (A)

DC

 

1:

 

24V

DC

 

13:

 

24V

AC

 

1:

 

230V

AC

 

1:

 

400V

AC

 

15:

 

230V

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

Relay data

General data

Diagrams

Circuit diagram (view on relay upper side)

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

144,0

34,7

± 10

6

4,5

> 0,6

120,0

50

± 10

12

9,0

> 1,2

60,0

200

± 10

18

13,5

> 1,8

40,0

450

± 10

24

18,0

> 2,4

30,0

800

± 10

48

36,0

> 4,8

15,0

3’200

± 10

60

45,0

> 6,0

12,0

5’000

± 13

110

82,5

> 11,0

6,5

16’800

± 15

Standard coils for direct current 
(other voltages on request)

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

Excitation voltage range

No. of operations x 1

0

0

0

Switching current (A)

10

 

000

1000

100

10

10

5.0

1.0

0.5

0.1

DC

 

1:

 

24V

DC

 

13:

 

24V

AC

 

1:

 

230V

AC

 

15:

 

230V

-  PCB relay with forcibly guided contacts

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation diagonally 

between left and right contact side (leakage 

and creeping distances > 5.5mm)

-  EN 50205, type B

- 2 CO contacts

- Mean coil power 0.7W

-  Holding power 0.21 W

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Single contact

Rated switching capacity 250VAC 8A AC1 2’000VA

Electr. life AC1 (360 cycles/h)  approx.100’000 

Inrush current max. 

15A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 8A

Switching capacity range* 0.12VA(W) to 2’000VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA

* Guide values

Mechanical life 

> 50 x 10

6

 operations

Switching frequency, mechanical 

20Hz

Response time 

typically 12ms

Drop-out time** 

typically 5ms

Bounce time of NO contact 

typically 4ms

Bounce time of NC contact 

typically 8ms

Vibration resistance  10-55Hz, AK 10g, RK 1.5g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

contact set/contact set 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 550

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II / RT III optionally

Solder bath temperature 

270°C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Resistance to  

1‘000A SCPD 10A 

short circuiting 

gL/gG (pre-fuse)

** without spark suppression

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 1

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V1

Options, accessories

Wash-resistant with O-Ring

Sealed RT III 

on request

PCB socket, DIN rail socket 

see page 29

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/5A, DC13: 24V/6A; UL 508: C300

Maximal contact load at AC 1 with 230V:

2 contacts each with 8A

Max. switching characteristics  

(acc. to DIN EN 60947-5-1 table C2):  

AC 15: 230V/2A, DC13: 24V/3A

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime for NO contact

Contact lifetime for NC contact

Load limit curve with direct current

Insulation terms

Coil/contacts: Double or reinforced insulation 

> 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

No heat accumulation due to intrinsic heating of 

other components. Continuous duty 100%.

SIR282        24VDC  SEN     08

 

Type designation 
Coil voltage 
sensitive coil
Wash-resistant / with O-ring

Ordering example

17

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIM 2 Contacts

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

3,0

Ambient temperature °C

U

U

B

N

SIM112 

Double or reinforced insulation

Control

 side

 

Output

 side

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V 

AC 15: 230V

DC 13: 24V

No. of operations x 1

0

0

0

Switching current (A)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

27,4

12,5

26,2

2,9

3,7

5

15,9

2,8

1

0,5

7,5

0,3 0,4

2,5

2,5

3,7

5

15,9

2,8

2,5

7,5

2,5

Ø

 1,3

[mm]

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Excitation voltage range

-  PCB relay with forcibly guided contacts

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation between left 

and right contact side (leakage and creeping 

distances > 5.5mm)

-  EN 50205, type A

- Contact mounting: SIM112  1NO/1NC

-  Small external dimensions

-  Mean coil power 0.5W

-  Holding power 0.15 W

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 8A AC1 2’000VA

Electr. life AC1 (360 cycles/h)  approx.100’000 

Inrush current max. 

20A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 8A

Switching capacity range* 0.06VA(W) to 2’000VA

Contact resistance (as delivered)  <100m

Ω

/28V/100mA 

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,5

> 0,5

111,0

45

± 10

6

4,2

> 0,6

85,7

70

± 10

12

8,4

> 1,2

44,4

270

± 10

21

14,7

> 2,1

23,8

880

± 10

24

16,8

> 2,4

21,8

1’100

± 10

48

33,6

> 4,8

10,9

4’400

± 13

60

42,0

> 6,0

8,7

6’850

± 15

110

77,0

> 11,0

5,5

20’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 10ms

Drop-out time** 

typically 3ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g

Vibration resistance  

 

10-200Hz 

NO contact > 10g

Test voltage  

 

coil/contacts 

5’000Veff  1min

Test voltage 

 

left to right contact sides 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

20g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A 

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil/contacts:  

Double or reinforced insulation > 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/3A

DC 13: 24V/4A

DC 13: 24V/6A/0,1Hz

UL 508: C150/R300

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime for NO contact

Load limit curve with direct current

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Relay data

General data

Diagrams

Ordering example

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SIM 1 1 2 24VDC

18

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIM 3 Contacts

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

Ambient temperature °C

U

U

B

N

SIM212 

Double or reinforced insulation

Control

 side

 

Output

 side

 

Basic insulation

SIM212

Variante 1
Standard

Variante 2
KV2

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V 

AC 15: 230V

DC 13: 24V

No. of operations x 1

0

0

0

Switching current (A)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

Relay data

General data

Diagrams

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Ordering example

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

-  PCB relay with forcibly guided contacts

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation between left 

and right contact side (leakage and creeping 

distances > 5.5mm)

-  EN 50205, type A

- Contact mounting: SIM212 

2NO/1NC

-  Small external dimensions

-  Mean coil power 0.75W

-  Holding power 0.21 W

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 8A AC1 2’000VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

20A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 8A

Switching capacity range* 0.06VA(W) to 2’000VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

151,0

33

± 10

6

4,5

> 0,6

125,0

48

± 10

12

9,0

> 1,2

63,1

190

± 10

21

15,75

> 2,1

35,5

590

± 10

24

18,0

> 2,4

30,0

800

± 10

48

36,0

> 4,8

15,4

3’100

± 10

60

45,0

> 6,0

12,5

4’800

± 13

110

82,5

> 11,0

6,8

16’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 10ms

Drop-out time** 

typically 4ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g

Vibration resistance  

10-200Hz  

NO contact > 10g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

left to right contact sides 

4’000Veff  1min

Test voltage  

contacts as one after the other 2’500Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

25g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A  

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil/contacts: Double or reinforced insulation 

> 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

Contacts in one row: Basic insulation

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/3A

DC 13: 24V/4A

DC 13: 24V/6A/0,1Hz

UL 508: C150/R300

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime for NO contact

Maximal contact load at AC 1 with 230V:

2 contacts each with 8A

Load limit curve with direct current

Excitation voltage range

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

SIM 2 1 2 24VDC 2

KV2

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

Options, accessories

PCB socket, DIN rail socket 

see page 30

[mm]

36,1 

12,5 

26,2 

2,9

 

2,4 

5 

5 5 

15,9 

2,8 

1 

0,5 

7,5 

0,3 0,4 

2,5 

2,5 

2,4 

5 5 5 

15,9 

2,8 

2,5 

7,5 

2,5 

Ø

 

1,3 

2,4

5

5 5

15,9

2,8

2,5

7,5

2,5

Ø

 

1,3

Variante 1

Standard

Variante 2

KV2

19

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIM 4 Contacts

Ambient temperature °C

U

U

B

N

0

0

40

60

2,0

1,5

1,0

0,5

1

2

80

100

20

Double or reinforced insulation

Basic insulation

SIM312 

SIM222 

Control

 

side

 

Output

 side

 

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V 

AC 15: 230V

DC 13: 24V

No. of operations x 1

0

0

0

Switching current (A)

0,6
0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

Current (A)

Voltage (VDC)

36,1

12,5

26,2

2,9

2,4

5

5 5

15,9

2,8

1

0,5

7,5

0,3

0,4

2,5

2,5

2,4

Ø

 

1,3

5 5 5

15,9

2,8

2,5

7,5

2,5

[mm]

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

-  PCB relay with forcibly guided contacts 

-  Protective separation between coil and 

contacts (leakage and creepage distances  

> 14mm); protective separation between left 

and right contact side (leakage and creeping 

distances > 5.5mm)

-  EN 50205, type A

- Contact mounting: 

 

SIM312 3NO/1NC 

SIM222 2NO/2NC

-  Small external dimensions

-  Mean coil power 1W

-  Holding power 0.29W

Contact material 

AgSnO

2

+0,2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 8A AC1 2’000VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

20A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 8A

Switching capacity range* 0,06VA(W) to 2’000VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA  

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

181,8

27,5

± 10

6

4,5

> 0,6

166,0

36

± 10

12

9,0

> 1,2

85,7

140

± 10

21

15,75

> 2,1

46,6

450

± 10

24

18,0

> 2,4

40,0

600

± 10

48

36,0

> 4,8

20,8

2’300

± 10

60

45,0

> 6,0

16,6

3’600

± 13

110

82,5

> 11,0

9,6

12’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 8ms

Drop-out time** 

typically 4ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g

Vibration resistance  

10-200Hz 

NO contact > 10g

Test voltage coil/contacts 

5’000Veff  1min

Test voltage  

left to right contact sides 

4’000Veff  1min

Test voltage  

contacts as one after the other 2’500Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

25g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

50K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A  

circuiting gG 

(pre-fuse)

** without spark suppression

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E18895 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Insulation terms

Coil/contacts:  

Double or reinforced insulation > 14mm

Left to right contact side:  

Double or reinforced insulation > 5.5mm

Contacts in one row: Basic insulation

Ordering example

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/3A

DC 13: 24V/4A

DC 13: 24V/6A/0,1Hz

UL 508: C150/R300

Contact lifetime for NO contact

1) Inductive load, L/R 40 ms

2) Resistive load

Maximal contact load at AC 1 with 230V:

2 contacts each with 8A

3 contacts each with 6A

Load limit curve with direct current

Excitation voltage range

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Relay data

General data

Diagrams

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SIM  3 1 2   24VDC

Options, accessories

PCB socket, DIN rail socket 

see page 30

20

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SLR 4 Contacts

Ambient temperature °C 

U 

U 

B 

N 

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

Double or reinforced insulation

Basic insulation

Control

 

side

 

Output

 

side

 

SLR222 

SLR312 

No. of operations x 1

0

0

0

Switching current (A)

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V

AC 15: 230V

DC 13: 24V

Current (A)

Voltage (VDC)

0,6

0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

10

53,3

33,4

16,5

2,9

6,4

6,4

20,5

2,9

0,6

13,7

0,4

3

6,4

10,7

1,4

4

11,3

1

0,3

20,5

3

25

5,4

2,9

6,4 10,7 6,4 6,4

12,7

4

16,7

16,7

[mm]

Ø

1,3

Relay data

General data

Diagrams

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

-  PCB relay with forcibly guided contacts 

-  Protective separation between coil/control 

contacts and output contacts (> 8mm) as 

well as protective separation between the 

output contacts themselves (> 10mm)

-  EN 50205, type A

- Contact mounting: 

 

SLR312 3NO/1NC 

SLR222 2NO/2NC

-  Small external dimensions

-  Mean coil power 0.6W

-  Holding power 0.18W

-  For Railway Applications: EN 50155

Contact material 

AgSnO

2

+0,2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 10A AC1 2’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

25A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 10A

Switching capacity range* 0.06VA(W) to 2’500VA

Contact resistance (as delivered)   <100m

Ω

/28V/100mA

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,5

> 0,5

121,0

41

± 10

6

4,2

> 0,6

100,0

60

± 10

12

8,4

> 1,2

50,0

240

± 10

18

12,6

> 1,8

33,3

540

± 10

24

16,8

> 2,4

25,2

950

± 10

48

33,6

> 4,8

12,6

3’800

± 10

60

42,0

> 6,0

10,0

6’000

± 13

110

77,0

> 11,0

5,5

20’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 15ms

Drop-out time** 

typically 4ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g 

 

NC contact 6g

Vibration resistance 

NO contact > 5g 

10-200Hz 

NC contact 1.5g

Test voltage  

 

coil/control contacts 

2’500Veff  1min

Test voltage  

5’000Veff  1min 

coil-control contacts/output contacts 

Test voltage output contacts 

as against each other 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

30g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A 

circuiting gG 

(pre-fuse)

** without spark suppression

Insulation terms

Coil/control contacts NO: Basic insulation

Coil/control contacts to output contacts: 

Double or reinforced insulation > 8mm

Output contacts as against each other:  

Reinforced insulation > 10mm

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Ordering example

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/5A

DC 13: 24V/7.5A/0.1 Hz

UL 508: C600/R300
Maximal contact load at AC 1 with 230V:

2 contacts each with 10A

3 contacts each with 8.4A

Contact lifetime

1) Inductive load, L/R 40 ms

2) Resistive load

Load limit curve with direct current

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

SLR 3 1 2  24VDC

21

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIR 4 Contacts

Ambient temperature °C 

U 

U 

B 

N 

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

SIR312 

SIR222 

Control

 

side

 

Output

 

side

 

Double or reinforced insulation

Basic insulation

No. of operations x 1

0

0

0

Switching current (A)

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V

AC 15: 230V

DC 13: 24V

Current (A)

Voltage (VDC)

0,6

0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

10

46,4

16

30,7

2,9

3

5

10,5

5

21

1,9

1

10

0,7

0,4

3

3

3

10,5 5

5

21

1,9

31

0

3

[mm]

Ø

 

1,3

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Ordering example

-  PCB relay with forcibly guided contacts

-  Protective separation between coil/control 

contacts and output contacts (> 10mm) as 

well as protective separation between the 

output contacts themselves (> 8mm)

-  EN 50205, type A

- Contact mounting: 

SIR312 3NO/1NC 

 

SIR222 2NO/2NC

-  Small external dimensions

-  Mean coil power 0.6W

-  Holding power 0.18W

-  For Railway Applications: EN 50155

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 10A AC1 2’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

25A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 10A

Switching capacity range* 0.06VA(W) to 2’500VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,5

> 0,5

121,0

41

± 10

6

4,2

> 0,6

100,0

60

± 10

12

8,4

> 1,2

50,0

240

± 10

18

12,6

> 1,8

33,3

540

± 10

24

16,8

> 2,4

25,2

950

± 10

48

33,6

> 4,8

12,6

3’800

± 10

60

42,0

> 6,0

10,0

6’000

± 13

110

77,0

> 11,0

5,5

20’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 15ms

Drop-out time** 

typically 4ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g 

 

NC contact 6g

Vibration resistance 

NO contact > 5g 

10-200Hz 

NC contact 1,5g

Test voltage  

 

coil/control contacts 

2’500Veff  1min

Test voltage  

5’000Veff  1min 

coil-control contacts/output contacts 

Test voltage output contacts 

as against each other 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

30g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A 

circuiting gG 

(pre-fuse)

** without spark suppression

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Insulation terms

Coil to control contacts: Basic insulation

Coil/control contacts to output contacts: 

Double or reinforced insulation > 10mm

Output contacts as against each other:  

Double or reinforced insulation > 8mm

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/5A

DC 13: 24V/7.5A/0.1 Hz

UL 508: C600/R300
Maximal contact load at AC 1 with 230V:

2 contacts each with 10A

3 contacts each with 8.4A

Load limit curve with direct current

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

Relay data

General data

Diagrams

SIR  3 1 2  24VDC

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

Options, accessories

PCB socket 

see page 31

22

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIR 4 Contacts „

P

ower“

U 

U 

B 

N 

Ambient temperature °C 

0 

0 

20 40 60 

2,0 

1,5 

1,0 

0,5 

1

2 

80 

100 

SIR312P 

SIR222P 

Control

 

side

 

Output

 

side

 

Double or reinforced insulation

Basic insulation

DC-13: 24V

10 000

1000

100

10

DC-13: 24V

DC 14: 24V

DC 1: 24V

16

10

5

1

No. of operations x 1

0

0

0

Switching current (A)

10 000

1000

100

10

16

10

5

1

AC 1: 230V

AC 1: 400V

AC 3: 230V

AC 3: 400V

AC15: 230V

No. of operations x 1

0

0

0

Switching current (A)

46,4

16

30,7

2,9

3

5

10,5

5

21

1,9

1

10

0,7

0,4

3

3

3

10,5 5

5

21

1,9

31

0

3

[mm]

Ø

 

1,3

Standard coils for direct current (examples) 
other voltages on request

Circuit diagram (view on relay upper side)

Ordering example

-  PCB relay with forcibly guided contacts

-  Protective separation between coil/control 

contacts and output contacts (> 10mm) and 

output contacts side by side (> 8mm)

-  EN 50205, type A

- Contact mounting: 

SIR312

P 

„

P

ower“ Control contacts 1NO/1NC 

 Output 

contacts 

2NO 

SIR222

P 

„

P

ower“ Control contacts 

2NC 

 Output 

contacts 

2NO

-  Inrush current 60A / continuous current 12A

-  Mean coil power 0.75W

-  Holding power 0.23 W

Control Contacts

Contact material 

AgSnO

2

+0.2

μ

m Au

Rated switching capacity 250VAC 6A AC1 1‘500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

15A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

5mA to 6A

Switching capacity range* 60mW to 1’500W (VA)

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA 

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

VDC

Drop-out v

olt

age 

 

at 20 °C VDC

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

< 3.5

> 0.5

151.0

33

± 10

12

< 8.4

> 1.2

63.1

190

± 10

18

< 12,6 > 1,8

41,6

432

± 10

20

< 14.0 > 2.0

37.7

530

± 10

24

< 16.8 > 2.4

31.5

760

± 10

48

< 33.6 > 4.8

15.7

3‘050

± 10

60

< 42.0 > 6.0

12.5

4‘800

± 10

110

< 77.0 > 11.0

6.8

16‘000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 15ms

Drop-out time** 

typically 4ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact 17g 

 

NC contact 7g

Vibration resistance 

NO contact 10g 

10-200Hz 

NC contact 4,5g

Test voltage  

 

coil/control contacts 

2’500Veff  1min

Test voltage  

5’000Veff  1min 

coil-control contacts/output contacts 

Test voltage output contacts 

as against each other 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

32g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short circuiting 1‘000A SCPD 6A 

control contacts 

gG (pre-fuse)

Resistance to short circuiting 1‘000A SCPD 16A 

output contacts 

gL/gG (pre-fuse)

** without spark suppression

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Insulation terms

Coil to control contacts: Basic insulation

Coil/control contacts to output contacts: 

Double or reinforced insulation  

> 10mm

Output contacts as against each other:  

Double or reinforced insulation > 8mm

contacts each with (output contacts)

Maximal contact load at AC 1 with 230V:

2 contacts each with 12A

Contact lifetime (output contacts)

1) Max. excitation voltage with contact load  

< 2A control contacts / < 10A output contacts

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

SIR 3 1 2 

P

 24VDC

Coil voltage

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Power version

Options, accessories

PCB socket:  

see page 31

Output contacts

Contact material 

AgSnO

2

Rated switching capacity 250VAC 

(440VAC) 

 

 12A 

AC1 

3‘000VA

Electr. life AC1 (360 cycles/h) approx. 250‘000

Inrush current max. 

60A for 20ms

Switching voltage range 

5 to 480 VDC/VAC

Switching current range* 

10mA to 12A

Switching capacity range* 120mW to 3‘000W (VA)

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA 

* Guide values

Relay data

General data

Diagrams

23

ELESTA relays GmbH, Heuteilstrasse 18,
CH - 7310 Bad Ragaz, Switzerland

Phone:  +41 (0)81 303 54 00
Fax: 

+41 (0)81 303 54 01

E-Mail: admin@elestarelays.com
Internet: http://www.elestarelays.com

SIR 4 Contacts sensitive

0

0

20

40

60

2,0

1,5

1,0

0,5

1

2

80

100

2,5

3,0

Ambient temperature °C

U

U

B

N

SIR312 

SIR222 

Control

 

side

 

Output

 

side

 

Double or reinforced insulation

Basic insulation

No. of operations x 1

0

0

0

Switching current (A)

10 000

1000

100

10

10

5.0

1.0

0.5

0.1

DC 1: 24V

AC 1: 230V

AC 15: 230V

DC 13: 24V

Current (A)

Voltage (VDC)

0,6

0,4

0,1

0,3

0,2

0,8

1

2

3

4

6

8

0

50

100

150

200

250

1

2

10

46,4

16

30,7

2,9

3

5

10,5

5

21

1,9

1

10

0,7

0,4

3

3

3

10,5 5

5

21

1,9

31

0

3

[mm]

Ø

 

1,3

Standard coils for direct current 
(other voltages on request)

Circuit diagram (view on relay upper side)

Ordering example

-  PCB relay with forcibly guided contacts

-  Protective separation between coil/control 

contacts and output contacts (> 10mm) as 

well as protective separation between the 

output contacts themselves (> 8mm)

-  EN 50205, type A

- Contact mounting: 

SIR312 3NO/1NC 

 

SIR222 2NO/2NC

-  Small external dimensions

-  Mean coil power 0.36W

-  Holding power 0.12W

-  For Railway Applications: EN 50155

Contact material 

AgSnO

2

+0.2

μ

m Au

Type of contact 

Crest contact

Rated switching capacity 250VAC 10A AC1 2’500VA

Electr. life AC1 (360 cycles/h)  approx.100’000

Inrush current max. 

25A for 20ms

Switching voltage range 

5 to 250 VDC/VAC

Switching current range* 

10mA to 10A

Switching capacity range* 0.06VA(W) to 2’500VA

Contact resistance (as delivered)  <100m

Ω

/28 V/100mA

* Guide values

Nominal v

olt

age 

 

VDC

Min. pic

k-up  

volt

age at 20°C

Drop-out v

olt

age 

 

at 20 °C

Nominal cur

rent 

 

in mA

R

esist

ance in  

Ohm at 20 °C

Tolerance in %

5

3,75

> 0,5

72,0

69,4

± 10

6

4,5

> 0,6

60,0

100

± 10

9

6,75

> 0,9

40,0

225

± 10

12

9,0

> 1,2

30,0

400

± 10

18

13,5

> 1,8

20,0

900

± 10

24

18,0

> 2,4

15,0

1’600

± 10

48

36,0

> 3,6

7,5

6’400

± 13

60

45,0

> 4,5

6,0

10’000

± 15

Mechanical life 

> 10 x 10

6

 operations

Switching frequency, mechanical 

15Hz

Response time 

typically 18ms

Drop-out time** 

typically 5ms

Bounce time of NO contact 

typically 6ms

Bounce time of NC contact 

typically 12ms

Shock resistance 16ms 

NO contact > 10g 

 

NC contact 6g

Vibration resistance 

NO contact > 5g 

10-200Hz 

NC contact 1,5g

Test voltage  

 

coil/control contacts 

2’500Veff  1min

Test voltage  

5’000Veff  1min 

coil-control contacts/output contacts 

Test voltage output contacts 

as against each other 

4’000Veff  1min

Test voltage contact open 

1’500Veff  1min

Insulation resistance 

10

11

 

Ω

Creepage resistance 

CTI 250

Weight approx. 

30g

Mounting position 

any

Ambient temperature 

-40°C to +70°C

Type of protection 

RT II

Solder bath temperature 

270 °C/5s

Thermal resistance 

55K/W

Temperature limit for coil 

120°C

Pollution degree 

2

Overvoltage category 

III

Resistance to short 

1’000A SCPD 10A 

circuiting gG 

(pre-fuse)

** without spark suppression

Tests, regulations

Approvals 

SEV, UL, cUL, TÜV

UL File E188953 

Sec. 3

Insulation class IEC 60664-1 

 250VAC

Protection class II 

VDE 0106

Fire protection requirements 

UL 94 / V0

Insulation terms

Coil to control contacts: Basic insulation

Coil/control contacts to output contacts: 

Double or reinforced insulation > 10mm

Output contacts as against each other:  

Double or reinforced insulation > 8mm

1) Inductive load, L/R 40 ms

2) Resistive load

Contact lifetime

Max. switching characteristics 

(determined acc. to DIN EN 60947-5-1 table C2):

AC 15: 230V/5A

DC 13: 24V/7.5A/0.1 Hz

UL 508: C600/R300
Maximal contact load at AC 1 with 230V:

2 contacts each with 10A

3 contacts each with 8.4A

Load limit curve with direct current

1) Max. excitation voltage with contact load < 2A

2) Min. excitation voltage (guaranteed values) 

without previous operation

No heat accumulation due to intrinsic heating 

of other components.  

Continuous duty 100%.

Excitation voltage range

Relay data

General data

Diagrams

SIR  3 1 2  24VDC

Soldering tags

Number of NC contacts

Number of NO contacts

Type designation

Coil voltage

Sensitive coil

SEN

Options, accessories

PCB socket 

see page 31