Westinghouse | 315C043G16 | Circuit Breaker | 400A | 3-Pole | 415V

Meet the Westinghouse 315C043G16 Circuit Breaker — a purpose-built protective device for demanding electrical systems. With a 400A rating, a 3-pole configuration, and operation at 415V, this breaker is designed for three-phase distribution in industrial and commercial environments. It excels in maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 415V
• Part number: 315C043G16 (best reference for compatibility)
• Applications: maintenance, retrofit, and replacement where matching specs are required

Why choose this Westinghouse model

Unlike generic breakers, the 315C043G16 is chosen for precise spec alignment with Westinghouse panels and compatible equipment. Its 400-amp, 3-pole design provides reliable protection for high-load three-phase feeders, helping to safeguard motors, transformers, and distribution circuits. The 415V rating suits many commercial and industrial power systems, reducing the need for awkward step-down configurations during installs.

Ideal use cases

• Replacing a failed 315C043G16 in an existing Westinghouse or compatible panel
• Retrofits where your system operates on 415V three-phase supply and requires a 400A feeder breaker
• Maintenance upgrades to ensure continuity and safety in heavy electrical cabinets
• New installations in facilities with standard 415V three-phase distribution that demand robust overcurrent protection

Compatibility and how to order

The part number 315C043G16 is your best reference for compatibility. Before ordering, verify that your panel, bus configuration, and rating align with this model's 3-pole design and 415V operation. When in doubt, cross-check your panel's labeling and internal schematics against the 315C043G16 specifications to minimize downtime and ensure a seamless replacement.

Practical tips for installation and safety

• Power down the equipment and lockout/tagout before replacing any circuit breaker
• Confirm torque specs and terminal sizes according to the panel’s installation manual
• Inspect surrounding wiring for wear and replace damaged conductors to avoid nuisance trips
• Keep spare 315C043G16 units on hand for planned maintenance windows to reduce system downtime