MCCB 400A 30-55kA 400/415V Circuit Breaker
Walax 400A molded case circuit breaker with 30–55kA breaking capacity at 400/415V. A rugged feeder breaker for commercial and industrial distribution where fault levels demand robust interruption.
- Factory-direct pricing · OEM/ODM branding · IEC/CE compliance
- Wholesale & project supply to Africa, SE Asia & the Middle East
30–55kA Withstand
Robust interruption for installations with elevated prospective fault current.
400A Rating
High-capacity feeder protection for commercial and industrial distribution.
400/415V Rated
Covers the standard three-phase distribution voltages across export markets.
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 |
| Poles | 3P / 4P |
| Rated voltage | AC 400V / 415V (50/60Hz) |
| Breaking capacity | 30kA – 55kA |
| Trip type | Thermal-magnetic / Electronic |
| Mounting | Fixed / plug-in |
| Mechanical life | ≥ 10,000 operations |
| Ambient temperature | -5°C to +40°C |
Where These Breakers Ship
Commercial buildings, industrial plants and large distribution boards where a 400A feeder with high breaking capacity is required to handle substantial fault levels.
Frequently Asked Questions
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Need MCCB 400A 30-55kA Breaking Capacity Pricing?
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