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MCCB 400-630A 3/4 Pole 400-690V AC Circuit Breaker
Walax molded case circuit breaker rated 400A, 500A and 630A in 3P and 4P, for 400V to 690V AC systems. High-capacity feeder protection with overvoltage coordination for demanding industrial supplies.
- Factory-direct pricing · OEM/ODM branding · IEC/CE compliance
- Wholesale & project supply to Africa, SE Asia & the Middle East
400–630A Ratings
High-capacity feeder protection for substantial commercial and industrial loads.
400–690V AC
Rated up to 690V for motor and distribution circuits on higher-voltage supplies.
3P / 4P Frames
Three-phase and three-phase-plus-neutral options for full system coverage.
Technical Specifications
Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.
| Standard | IEC 60947-2 · CE |
| Rated current (In) | 400A / 500A / 630A |
| Poles | 3P / 4P |
| Rated voltage | AC 400V / 690V (50/60Hz) |
| Breaking capacity | 50kA – 65kA |
| Trip type | Thermal-magnetic / Electronic |
| Protection | Overload, short-circuit, overvoltage coordination |
| Mounting | Fixed / draw-out |
| Mechanical life | ≥ 10,000 operations |
| Ambient temperature | -5°C to +40°C |
Where These Breakers Ship
Industrial distribution boards, motor control centres and large feeders from 400A to 630A on 400V and 690V systems. Suited to plants with significant motor and machinery loads.
Frequently Asked Questions
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Need MCCB 400-630A 3/4 Pole 400-690V AC Pricing?
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