Description
TGM1N series moulded case circuit breaker is a new type of circuit breaker developed with international advanced technology platform. It is suitable for power distribution protection in AC 50/60Hz, circuits with the rated working voltage ≤ 690V, and can also be used for occasional circuit switch and startup of motor.
This series circuit breaker is equipped with overload and short circuit protection devices. This series circuit breaker may be installed vertically (i.e., vertical installation) or horizontally (i.e., horizontal installation).
TGM1N series moulded case circuit breaker is a new type of circuit breaker developed with international advanced technology platform. It is suitable for power distribution protection in AC 50/60Hz, circuits with
the rated working voltage ≤ 690V, and can also be used for occasional circuit switch and startup of motor. This product has the advantages of exquisite appearance, compact volume, convenient With maintenance,
excellent performance, etc.. It can fully replace the M1 series products in the market due to its excellent performance and high cost performance.
This series circuit breaker is equipped with overload and short circuit protection devices. This series circuit breaker may be installed vertically (i.e., vertical installation) or horizontally (i.e., horizontal installation).
It has disconnecting function, with the corresponding symbol of: The circuit breaker shall meet the standard IEC 60947-1 and IEC 60947-2 Certificate: CB, CE
Robust Protection for Demanding Circuits | TGM1N Series Moulded Case Circuit Breaker
The TGM1N Series is a comprehensive line of moulded case circuit breakers designed for reliable power distribution, motor protection, and system safety in a wide range of industrial and commercial applications, from compact control panels to main distribution boards.
Core Product Range & Capabilities:
Wide Current Range: Frame ratings from 63A up to 1600A.
High Breaking Capacity: Offers multiple breaking capacity levels up to 100kA (e.g., 70kA for 250/320A frame, 100kA for 400-800A frame).
Flexible Configuration: Available in 2P, 3P, 3P+N, and 4P versions.
Multiple Trip Units: Features thermal-magnetic release, with options for electronic release and overload alarm without tripping for critical processes.
Key Features & Flexibility:
Versatile Operation: Supports manual, rotary handle (Z), and electric motor (P) operation modes for local or remote control.
Comprehensive Accessories: Compatible with a full suite of internal and external accessories, including shunt releases (MX), undervoltage releases (MN), auxiliary contacts (OF), alarm contacts (SD), and mechanical interlocks (LS).
Adaptable Installation: Designed for fixed, plug-in, and withdrawable mounting with both front and rear connection options to suit various cabinet layouts.
Enhanced Options: Offers transparent cover (Tt) for visual inspection and smart communication modules for system integration.
🏗️ Primary Applications:
Ideal for main power distribution, feeder protection, and large motor control in manufacturing plants, industrial machinery, commercial buildings, infrastructure projects, and data centers.
Working environment conditions:
1.1 Ambient temperature
1.1.1 Normal working temperature is -5°C- +30°C, working temperature limit is -40°C – +70°C.
1.1.2 Derate according to the sample requirements when the temperature is <-5°C or > +30°C (see Table 11 for details).
1.2 Installation category
1.2.1 It is category-III for the main circuit and category- II for remaining auxiliary circuits.
1.3 Pollution class: 3
1.4 Altitude: 2,000 m, derating according to the sample requirements when above 2,000 m (see Table 10 for details).
1.5 Atmospheric conditions
1.5.1 The relative humidity is not more than 50% when the ambient temperature is +40°C;
1.5.2 A higher relative humidity is allowed at the lower temperature.
For example, the relative humidity may be 90% at +20°C. Special measures shall be taken for condensation due to temperature changes.
1.6 Shock and vibration
1.6.1 Withstand mechanical vibration with the frequency of 2Hz-13.2Hz, displacement of ±1mm and mechanical vibration with the frequency of 13.2Hz-100Hz and accelerated velocity of ±0.7g
| Basic parameters | |||||
| Frame current | 63 | 125 | 160 | 250 | 320 |
| Rated working voltage Ue(V) | AC230/240、 AC380/400/415、AC660/690 |
AC230/240、 AC380/400/415、 AC660/690 |
AC230/240、 AC380/400/415、 AC660/690 |
AC230/240、 AC380/400/415、 AC660/690 |
AC230/240、 AC380/400/415、 AC660/690 |
| Rated insulation voltage Ui(V) | 800 | 800 | 1000 | 1000 | 1000 |
| Rated impulse withstand voltage Uimp(kV) | 8 | 8 | 8 | 12 | 12 |
| Rated frequency Hz | AC( 50/60Hz) | ||||
| Rated current In(A) | 10、 16、 20、 25、 32、 40、50、 63 | 10、 16、 20、 25、 32、 40、50、 63、 80、 100、 125 | 16、 20、 25、 32、 40、 50、60、 63、 70、 75、 80、 100、125、 140、 150、 160 | 100、 125、 140、 150、 160、170、 180、 200、 225、 250 | 100、 125、 140、 150、 160、170、 180、 200、 225、 250、270、 280、 300、 315、 320 |
| Basic parameters | ||||||
| Frame current | 400 | 630 | 630 large volume |
800 | 1250 | small volume 1250 |
| Rated working voltage Ue (V) | AC380/400/415、 AC660/690 |
AC380/400/415、 AC660/690 |
AC400/415 AC660/690 |
AC380/400/415 AC660/690 |
AC400 | AC400 |
| Rated insulation voltage Ui (V) | 1000 | 1000 | 800 | 1000 | 800 | 800 |
| Rated impulse withstand voltage Uimp(kV) |
12 | 12 | 8 | 12 | 12 | 12 |
| Rated frequency Hz | AC( 50/60Hz) | AC( 50Hz) | AC( 50/60Hz) | AC( 50Hz) | AC(50Hz) | |
| Rated current In(A) | 250、 280、 300、 315、320、 350、 380、 400 | 400、 450、 500、 550、600、 630 | 400、 500、 630 | 630、 700、 800 | 630、 700、 800、 1000、 1250、1500、1600 | |




