Westinghouse | 504C740G20 | Circuit Breaker | 3-Pole | 277V

Introducing the Westinghouse 504C740G20, a 3-Pole 277V circuit breaker designed for dependable protection in commercial and industrial panels. Engineered for maintenance, retrofit, and replacement projects, this unit ensures you can preserve system safety while upgrading or repairing existing electrical infrastructure. The 504C740G20 part number is the best reference for compatibility, so verify fit and ratings before ordering.

• 3-Pole protection delivers synchronized interruption across all three phases in 277V systems, ideal for balanced 3-phase loads.
• 277V operation tailored for commercial lighting, HVAC, and other 277V circuits common in office buildings and warehouses.
• Exact part reference uses the 504C740G20 model number to ensure compatibility with matching Westinghouse panels and replacement catalogs.
• Retrofit-ready designed to drop into compatible frames with minimal disruption, making upgrades or replacements smooth and efficient.
• Durable performance built for reliable interrupting action in demanding environments, helping protect equipment and personnel.

Ideal applications include panel upgrades in commercial facilities, replacement in existing 3-phase systems, and new installs that require a precise 277V, 3-pole breaker. To ensure seamless replacement, compare your panel’s listing with the 504C740G20 reference and confirm that the voltage, pole configuration, and trip characteristics align with your circuit design.

Before installation, verify compatibility by checking the panel’s catalog numbers and the circuit’s voltage requirements. Match the exact part number 504C740G20 to your panel’s specification sheet, and ensure the protection rating corresponds to the circuit’s amperage and load profile. This careful check helps you avoid mismatches and ensures reliable, code-compliant operation.

With the Westinghouse 504C740G20, you gain a dependable, clearly specified solution for 277V three-phase circuits—delivering safety, compatibility, and peace of mind for maintenance, retrofit, and replacement projects.