The breaker is mainly used in distribution network of AC50Hz or 60Hz, rated voltage up to 690V, rated working current up to 800A to distribute electric power and to protect the line and the equipment from being damaged due to overload, short citcuit and under-voltage. It can also be used for unfrequent motor start and for motor overload, short circuit and under voltage protections.
Standard: IEC 60947-2
| Model | Rated current of breaker' s frame grade | Rated current (A) | Rated operation voltage | Rated insulation voltage | Rated limit short circuit breaking capaciry | Rated operation short breaking capacity |
| GTM1-63L | 63 | 10, 16, 20, 25, 32 40, 50, 63 | AC400V | 500V | 25 | 18 |
| GTM1-63M | 50 | 35 | ||||
| GTM1-100L | 100 | 16, 20, 25, 32, 40 50, 63, 80, 100 | AC400V | 500V | 35 | 18 |
| GTM1-100M | 50 | 35 | ||||
| GTM1-100H | 85 | 50 | ||||
| GTM1-160L | 160 | 100, 125, 140, 160 | AC400V | 500V | 35 | 18 |
| GTM1-160M | 50 | 35 | ||||
| GTM1-160H | 85 | 50 | ||||
| GTM1-225L | 225 | 100, 125, 140, 160, 180, 200, 225 | AC400V | 500V | 35 | 18 |
| GTM1-225M | 50 | 35 | ||||
| GTM1-225H | 85 | 50 | ||||
| GTM1-400L | 400 | 225, 250, 315, 350, 400 | AC400V | 500V | 50 | 35 |
| GTM1-400M | 65 | 45 | ||||
| GTM1-400H | 100 | 65 | ||||
| GTM1-630L | 630 | 400, 500, 630 | AC400V | 500V | 50 | 35 |
| GTM1-630M | 65 | 45 | ||||
| GTM1-630H | 100 | 65 | ||||
| GTM1-800M | 800 | 630, 700, 800 | AC400V | 500V | 75 | 50 |
| GTM1-800H | 100 | 65 | ||||
| GTM1-1250M | 1250 | 630, 700, 800, 1000, 1250 | AC400V | 500V | 65 | 32.5 |
| GTM1-1250H | 100 | 40 | ||||
| GTM1-1600M | 1600 | 1000, 1250, 600 | AC400V | 500V | 65 | 32.5 |
| GTM1-1600H | 100 | 40 |
| HS Code: | 85362000 |
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| Standard: | IEC 60947-2 |
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