TGM3E series moulded case circuit breaker has the characteristics of four sections of selective protection, zero flashover, high breaking, box-type accessories, small and compact structure, green and environmental protection.
It has the rated isolation voltage of 1,000V. It can be used for occasional circuit switch and startup of motor in circuits under AC 50/60Hz, with the rated working voltage ≤690V and setting current of 12.5A-1,250A.
The circuit breaker can be equipped with communication modules, so as to upgrade the original circuit breaker to a communication circuit breaker easily, achieving “four remote” functions, namely remote control, remote adjustment, remote measurement and remote signaling.


Working environment conditions:

1.1 Ambient air temperature is -5ºC to +40ºC;

1.2 The relative air humidity at the installation site shall not exceed 50% at a maximum temperature of +40ºC. A higher

relative humidity is allowed at the lower temperature. For example, the relative humidity can reach 90% at 20ºC. Special

measures should be taken to deal with occasional condensation due to temperature changes;

1.3 Pollution class is 3;

1.4 The circuit breaker is required to withstand mechanical vibration with the frequency of 2Hz-11.2Hz, displacement of

±1mm and mechanical vibration with the frequency of 11.2Hz-100Hz and accelerated velocity of ±0.7g;

1.5 The installation category is III for main circuits of the circuit breaker and II for other auxiliary circuits and control


1.6 The circuit breaker shall be applicable to electromagnetic environment B;

1.7 Hot and humid band type (TH type) circuit breaker can withstand the effect of damp air, salt mist, oil mist and mold;

1.8 The circuit breakers should be installed in a place without explosive hazard, conductive dust and corrosion against metal

and damage to insulation;

1.9 The circuit breaker shall be installed in the place without invasion of rain and snow;

1.10 Operation conditions:

1.10.1 The ambient air temperature shall be from -30ºC to +70ºC (derate when the temperature exceeds; see the technical

materials in the sample for details);

1.10.2 The characteristic shall not be affected when the altitude is 2,000m (derate when above 2,000 m; see the technical

materials in the sample for details);

1.10.3 The ambient air temperature for storage shall be -40ºC- +75ºC.

1.11 The protection grade of the product body is IP20

1.12 Cabinet door installation

1.12.1 With toggle handle: Protection grade is IP40.

1.12.2 With rotation handle: Protection grade is IP50.

1.12.3 With motor-operated mechanism: Protection grade is IP40

Basic   Information
Frame rated current 125160250320
Pole number 3P3P+N4P 3P3P+N4P 3P3P+N4P 3P3P+N4P
Frequency (Hz) 50/60 50/60 50/60 50/60
Rated working voltage Ue(V) 380/400/415   660/690 380/400/415   660/690 380/400/415   660/690 380/400/415   660/690
Rated insulation voltage Ui(V) 1000100010001000
Rated impulse withstand voltage Uimp(kV) 8888
Rated working current In(A)32AF:12.5   32
63AF:25   63
250AF:100   250 320AF:125   320

Basic Information
Frame rated current 40063080012501250   (customized)
Pole number 3P3P+N4P 3P3P+N4P 3P3P+N4P 3P 3P/4P
Frequency (Hz) 50/60 50/60 50/60 50/60 50/60
Rated working voltage Ue(V) 380/400/415   660/690 380/400/415   660/690 380/400/415   660/690 380/400/415   660/690 400/690
Rated insulation voltage Ui(V) 10001000100010001000
Rated impulse withstand voltage Uimp
Rated working current In(A) 400AF:160~400 630AF:250~630 630AF:250~630
1250AF:500~1250 1000AF:630-1000



Zhejiang Tengen Electric Co., Ltd.

Sulv Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China, 325699

+86 21 3119 8727

Copyright ©2024 Zhejiang Tengen Electric Co., Ltd.


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