MCCB GM2-1250 electronic type
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Product Details
MCCB GM2-1250 electronic type
Model | GM2-1250 | |||||
Number of poles | 3 | 4 | ||||
Control | Manual | Toggle | ■ | |||
Connections | Fixed | Front connection | ■ | |||
Rear connection | ■ | |||||
Electrical characteristics as per IEC60947-2 and GB14048.2 | ||||||
Rated current(A) | In | 50℃ | 1250 | |||
65℃ | 1000 | |||||
Rated insulation voltage(V) | Ui | 750 | ||||
Rated impulse withstand voltage(KV) | Uimp | 8 | ||||
Rated operational voltage(V) | Ue | AC 50/60Hz | 690 | |||
Type of circuit breaker | N | |||||
Ultimate breaking capacity (KA rms) | Icu | AC 50/60Hz | 400V | 50 | ||
Service breaking capacity | Ics | %Icu | 75% | |||
Short-time withstand current (KA rms) V AC 50/60Hz | Icw | 0.5s | 25 | |||
1s | 17 | |||||
Suitability for isolation | ■ | |||||
Utilization category | B | |||||
Max. demand current (C-O cycles) | Mechanical | 50000 | ||||
Electrical | 440V | In/2 | 5000 | |||
In | 4000 | |||||
690V | In/2 | 3000 | ||||
In | 2000 | |||||
Pollution degree | III | |||||
Protection | ||||||
Interchangeable control units | Electronic type(STK5.0) | |||||
Overload protection | Long time | Ir(In×...) | ■ | |||
Short-circuit protection | Short time | Isd (Ir×...) | ■ | |||
Instantaneous | Ii(In×...) | ■ | ||||
Control auxiliaries | ||||||
Auxiliary switch | ■ | |||||
MX shunt and MN undervoltage winding | ■ |
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