Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
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| Amperes | 400 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | Circuit Breaker |
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Meet the Westinghouse MC3400M, a purpose-built 400A circuit breaker engineered for demanding electrical systems. With a 3-pole design rated for 600V, this unit is tailored for maintenance, retrofit, and replacement projects where exact specifications matter—delivering dependable overcurrent protection that aligns with your existing infrastructure.
Compatibility reminder: Confirm fit and ratings before ordering. The part number MC3400M is the most reliable reference for ensuring a seamless match with your panel or enclosure.
This breaker is a strategic choice for facility managers, electrical contractors, and maintenance teams overseeing Westinghouse-based electrical distributions. It’s particularly suitable for:
With the MC3400M, you’re not just replacing a breaker—you’re preserving the reliability and continuity of your electrical system. Always verify the panel’s model and the board’s configuration to ensure the part aligns perfectly with your installation.
Contact sales@ampstate.com
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General feedback we often hear from customers purchasing industrial electrical parts.
Professional-grade feel. No issues reported during commissioning.
Controls · Commissioning
Arrived in good condition and helped keep our project on schedule.
Project team · Contractor
Exactly what most contractors expect from an industrial supplier.
Electrical · Commercial
Fast industrial sourcing support
Email us at sales@ampstate.com for pricing, availability, alternates, and project support.
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