Westinghouse | 315C043G09 | Circuit Breaker | 400A | 2-Pole | 600V

Westinghouse 315C043G09 Circuit Breaker — 400A, 2-Pole, 600V. A purpose-built replacement designed for maintenance, retrofit, and replacement projects where exact specifications matter.

When your electrical system demands robust protection for high-current, two-pole circuits, this Westinghouse breaker delivers. The 400-amp rating and 600-volt capacity mean it’s suitable for main or feeder protection in commercial and industrial panels that require a precise compatibility match. Use it in applications where reliable interruption of fault current is critical, and where matching the exact part number ensures the panel maintains its listed protection and warranty terms.

• Amperage: 400 A
• Poles: 2-Pole
• Voltage: 600 V
• Part number: 315C043G09
• Recommended use: Maintenance, Retrofit, Replacement in compatible Westinghouse panels
• Compatibility note: Confirm fit and ratings before ordering; use the part number as your best reference for compatibility

Who should consider this breaker? Facilities managers, electrical contractors, and technicians responsible for keeping service entrances, distribution panels, and industrial control panels up to date. If you’re upgrading a panel to support higher loads, or replacing a worn-out breaker that matches the 315C043G09 specifications, this unit fits the bill.

What makes it stand out in practice? The Westinghouse 315C043G09 is purpose-built to slot into compatible panels without adapters or modifications, preserving correct trip characteristics and panel labeling. It’s designed to minimize downtime during maintenance and retrofit projects, helping you keep power flowing safely and reliably.

Practical tips:

• Always verify panel manufacturer guidelines and the exact part reference before purchasing.
• Handle only with power removed and follow lockout/tagout procedures during replacement.
• Keep a correctly rated spare on hand to reduce downtime in critical facilities.