TBG3H-125 miniature case circuit breaker (hereinafter referred to circuit breaker) is used in AC 50/60 line with rated voltage 230V (for 1P) or 400V (for 2P/3P/4P) and rated current up to 125A for overload and short-circuit protection. It can also be used for infrequent ON/OFF switching of the line under the normal operation. The circuit breaker is characterized by artistic shape, small size, light weight, excellent and reliable performance, high breaking capacity, quick tripping, and rail-mounted installation.
Number of poles | 1P, 2P, 3P, 4P | 1P, 2P, 3P, 4P |
Rated frequency (Hz) | 50/60 | 50/60 |
Frame current (A) Inm | 125 | 125 |
Rated currnt (A) Ie | 63, 80, 100, 125 | 63, 80, 100, 125 |
Rated voltage (V) Ue | AC230(1P), AC400(2P, 3P, 4P) | AC230(1P), AC400(2P, 3P, 4P) |
Rated insulation voltage (V) Ui | 500 | 500 |
Rated impulse withstand voltage (kV) Uimp | 6 | 6 |
Rated run short circuit breaking capacity (kA) Ics | 6 | 7.5 |
Rated limit short circuit breaking capacity (kA) Icu | 6 | 10 |
Instantaneous trip characteristics | B(Ii=5In), C(Ii=8In), D(Ii=12In) | B(Ii=5In), C(Ii=8In), D(Ii=12In) |
Trip form | Thermomagnetic trip | Thermomagnetic trip |
Pollution degree | 3 | 3 |
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