Westinghouse | HMCP400J5C | Circuit Breaker | 400A | 3-Pole | 600V

The Westinghouse HMCP400J5C Circuit Breaker is a dependable protection solution crafted for demanding electrical installations. With a 400A rating and a 3-pole configuration, it is designed to operate across systems up to 600V, delivering steady, predictable protection for large feeders and plant circuits.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Part reference: HMCP400J5C

Why this matters

Choosing the exact part number HMCP400J5C ensures you preserve the integrity of your existing panel layout, mounting pattern, and electrical interfaces. This isn’t just a replacement—it's a precise match that helps maintain consistent trip characteristics, reliability, and system behavior in your installation. The part number is the most reliable reference for compatibility, making it easier to verify fit before ordering.

Ideal for

• Maintenance teams performing routine servicing on legacy panels
• Retrofits where upgraded or refurbished protection is required without altering wiring or mounting footprints
• Replacement projects for systems demanding 400A protection at up to 600V across a 3-pole configuration

Practical considerations

Before purchasing, confirm that the HMCP400J5C matches the existing equipment’s ratings and physical fit. Using the exact part number as your compatibility guide helps avoid mismatches in mounting, electrical interface, and protective behavior, ensuring a smooth upgrade or replacement process.