Westinghouse | 315C043G23 | Circuit Breaker | 400A | 3-Pole | 415V

Westinghouse 315C043G23 Circuit Breaker is a robust protection solution engineered for demanding three‑phase electrical systems. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this unit delivers reliable overcurrent protection at a substantial 400A rating and 415V operating voltage.

• Current rating: 400A — suitable for high-demand industrial loads and service entrances requiring solid, repeatable protection.
• Pole configuration: 3‑Pole — ensures simultaneous disconnection of all three phases for safer, more effective protection in three‑phase networks.
• Voltage rating: 415V — aligns with common three‑phase distribution standards found in industrial facilities and commercial installations.
• Installation context: Ideal for maintenance, retrofit, and replacement where a matching part number is essential to preserve panel integrity and electrical safety.
• Reference for compatibility: The part number 315C043G23 is the best reference to confirm fit and ratings before ordering, helping you avoid mismatched components.

This breaker helps you maintain uninterrupted operation in critical systems by providing clear, reliable protection against overloads and short circuits. Its three‑pole design is particularly important in environments with balanced loads across three phases, where coordinated tripping reduces risk to equipment and personnel.

Who this is for: Maintenance teams, retrofit projects, and replacement efforts in industrial facilities, manufacturing lines, and commercial power distribution setups that run on 415V three‑phase networks and require a 400A protective device.

How it compares to other options: When you need protection for a three‑phase circuit at 415V with a 400A capacity, a three‑pole unit like this Westinghouse model offers coordinated phase protection that single- or two‑pole breakers cannot provide. It’s specifically chosen when panel compatibility and spec fidelity are paramount, reducing downtime and the risk of mismatches during upgrades or service work.

Practical tips: Before purchasing, verify your panel’s model and the 315C043G23 designation to ensure a perfect match. When installing, follow standard electrical safety procedures and consult your panel’s labeling to confirm recommended breakers for your configuration. Keeping a spare compatible unit on hand can significantly shorten service windows during planned maintenance or retrofits.