Ningbo Doto Electric Co., Ltd.
Ningbo Doto Electric Co., Ltd.
The Doto M7-63 4P miniature circuit breaker combines three phases and neutral under a single orange handle for complete four-pole isolation of 400V circuits. With 1-63A ratings, B/C/D curves and 6kA breaking capacity, it serves main switches of small distribution boards, heating loads and circuits where the neutral must never stay energized during maintenance. The M7 platform is certified to IEC/EN60898-1 and IEC/EN60947-2, rated 690V insulation / 4kV impulse, IP20, and operates from -30 to +70 degrees C.
| Rated current (A) | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
|---|---|
| Pole | 4P |
| Breaker capacity | 6KA |
| Rated voltage | 230V/240V AC, 400V/415V AC |
| Rated frequency | 50/60Hz |
| Rated insulated voltage | 690V |
| Impulse withstand voltage | 4KV |
| Instantaneous tripping type | B/C/D |
| Mechanical endurance | 20000 cycles |
| Electrical endurance | 10000 cycles |
| Protection degree | IP20 |
| Wiring termination | 25 mm2 |
| Working temperature | -30°C to +70°C |
| Altitude above sea | 2000 m max. |
| Conformed standards | IEC/EN60898-1, IEC/EN60947-2 |
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Professional manufacturer of AC contactors, circuit breakers, capacitors, hour meters and counters. Factory-direct, CE & ROHS certified, exporting worldwide.
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