Westinghouse | HMCP400L5 | Circuit Breaker | 400A | 3-Pole | 600V

The Westinghouse HMCP400L5 circuit breaker is a robust 400-amp, 3-pole protection device engineered for reliability in demanding electrical environments. With a 600V rating, this breaker anchors the safety and continuity of your main distribution panels, delivering fast, precise interruption when faults occur and helping minimize downtime in critical operations.

Designed for maintenance, retrofit, and replacement projects, this unit shines where exact specifications matter. Its identification by part number HMCP400L5 makes cross-referencing straightforward, ensuring you match the exact device your system requires. When upgrading or restoring protection, choosing the HMCP400L5 helps preserve existing electrical architecture and performance expectations.

Notes to ensure a perfect fit: always confirm the breaker’s fit and ratings before ordering. Verify panel compatibility, bus configuration, and voltage requirements to align with your current installation. Rely on the HMCP400L5 part number as the most reliable reference for compatibility in your upgrade or replacement plan.

Key specifications

• Amperage: 400 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Reference part number: HMCP400L5

Why this Westinghouse breaker stands out

• Dedicated for high-current protection in commercial and industrial electrical systems, helping to safeguard equipment and personnel.
• Precise compatibility through exact part-number reference, simplifying ordering and installation in retrofit projects.
• Versatile for maintenance cycles, panel upgrades, and replacements where spec integrity is essential.

Ideal use cases

• Maintenance tasks where a like-for-like replacement is required to maintain system integrity.
• Retrofits and panel upgrades that demand 400A, 3-pole protection with a 600V rating.
• Inventory for service teams and facilities managers who prioritize accurate, reliable components.

Practical tips for purchasing and installation

Prepare for a smooth process by having the exact part number HMCP400L5 on hand and cross-checking it against your panel model, bus arrangement, and voltage class. Since ratings and fit are critical, use the part number as your primary compatibility reference and consult your electrical documentation or technician if any doubt remains about the installation environment.