Description
Su203M-K25 ABB Miniature Circuit Breaker 240VAC 25Amp Trip Curve K 3 Pole uL489 RoHS
Standards: CSA 22.2 No. 5, IEC/EN 60947-2, UL 489
Number of Poles: 3
Number of Protected Poles: 3
Tripping Characteristic: K
Rated Current (In): 25 A
Rated Operational Voltage: acc. to IEC 60947-2 400 V AC
Power Loss: 9.6 Wat Rated Operating Conditions per Pole 3.2 W
Rated Insulation Voltage (Ui): acc. to IEC/EN 60664-1 440 V
Rated Frequency (f): DC50 Hz, 60 Hz
Rated Ultimate Short-Circuit Breaking Capacity (Icu): (400 V AC) 15 kA
Rated Service Short-Circuit Breaking Capacity (Ics): (400 V AC) 11.2 kA
Overvoltage Category: III
Pollution Degree: 3
Rated Impulse Withstand Voltage (Uimp): 4 kV(6.2 kV @ sea level), (5.0 kV @ 2000 m)
Dielectric Test Voltage: 50/60 Hz, 1 min: 2 kV
Housing Material: Insulation Group I, RAL 7035
Actuator Material: Insulation Group II, Black, Sealable
Actuator Marking: I / O
Contact Position Indication: Red ON / Green OFF
Degree of Protection: IP20
Remarks: IP40 in enclosure with cover
Electrical Endurance: 20000 AC cycle
Mechanical Endurance (Nendu): 20000 cycle
Terminal Type: Double Clamp
Screw Terminal Type: Failsafe Bi-directional Cylinder-lift Terminal
Connecting Capacity: Busbar 10 / 10 mm², Flexible with Ferrule 0.75 … 25 mm², Flexible 0.75 … 25 mm², Rigid 0.75 … 35 mm², Stranded 0.75 … 35 mm²
Tightening Torque: 2.8 N·m
Recommended Screw Driver: Pozidriv 2
Mounting on DIN Rail: TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715, TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715
Mounting Position: Any
Built-In Depth (t2): 69 mm
Installation Size: acc. to DIN 43880 3
Power Supply Connection: Arbitrary
Manufacturer: ABB
Manufacturer Part Number: SU203M-K25
Datasheet: Datasheet
Manufacturer ABB
Mounting Type DIN Rail Mount
Manufacturer Part Number SU203M-K25
Number of Poles 3
Series SU200M Series
Voltage Rating 277 V, 480 V
UPC Code 4016779930406
Approvals UL 489
Current Rating 25 A
Characteristic K Curve
The miniature circuit breaker SU200 M is ABB’s solution for UL 489 branch circuit protection up to 480 Y/277 V AC and 96 V DC. This circuit breaker is an all-round device for AC and DC applications for universal use in North American and global markets due to its approvals acc. to the international standards UL, CSA and IEC. Moreover, SU200 M is fully compatible with System pro M compact® UL 489 accessories.







