Westinghouse | 315C043G20 | Circuit Breaker | 400A | 3-Pole | 415V

Meet the Westinghouse 315C043G20 Circuit Breaker — a robust, three-phase protection device designed for industrial and commercial electrical systems demanding reliability and easy retrofitting.

Key specifications at a glance

• Amperage: 400 A
• Poles: 3-Pole (three-phase protection)
• Voltage rating: 415 V
• Part number reference: 315C043G20 (best compatibility reference)
• Application: maintenance, retrofit, and replacement where matching specs are required

Designed to fit within established Westinghouse and compatible panel configurations, this circuit breaker preserves system integrity while speeding up replacements. Before ordering, confirm fit and ratings to ensure seamless integration with your equipment and protective coordination with upstream devices.

Why this Westinghouse circuit breaker stands out

• Reliable three-phase protection: The 3-Pole design protects all three lines in a standard three-phase 415V network, helping prevent equipment damage from overloads or short circuits.
• High-current capability: With a 400 A rating, it handles substantial load demands typical in industrial panels, MCCs, and large machinery feeders.
• Retrofit-ready: The 315C043G20 form factor is chosen for maintenance and replacement projects where exact specs are critical, reducing downtime and system modification needs.

Practical use cases:

• Replacing a failed breaker in an existing 3-phase, 415V distribution panel without rewiring or panel reconfiguration.
• Upgrading protection in manufacturing lines, CNC machines, or HVAC systems that operate on 400 A 3-phase loads.
• Maintaining critical systems in data centers or facilities where consistent trip performance and coordination with upstream protection matter.

Ideal for: electrical maintenance teams, facility managers, electrical contractors, and systems integrators who need a dependable, plug-compatible replacement that matches exact specifications.

Tips for optimal results:

• Verify that your panel and bus configuration align with the 3-Pole 415 V rating before purchase.
• Keep the 315C043G20 part number handy as the definitive reference for compatibility checks.
• Store spares in a controlled environment to prevent corrosion or contact deterioration, ensuring rapid response during outages.

Bring reliable protection to your electrical system with the Westinghouse 315C043G20 Circuit Breaker. It's not just a replacement—it's a strategic upgrade that keeps your critical processes running smoothly, with a focus on safety, longevity, and ease of install.