Westinghouse | 504C740G07 | Circuit Breaker | 400A | 3-Pole | 415V

Westinghouse 504C740G07 is a rugged, three-pole circuit breaker designed for demanding 3‑phase power systems. With a 400 A rating and a 415 V nominal voltage, this unit is built to protect and stabilize industrial and commercial electrical networks, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 415V
• Part number reference: 504C740G07 (best reference for compatibility)
• Applications: maintenance, retrofit, and replacement in compatible panels and systems

Why this Westinghouse breaker stands out

• Precise compatibility anchor: Use the exact part number 504C740G07 to confirm fit with your panel data sheet or equipment catalog, reducing guesswork during replacements.
• Three-phase protection: The 3‑pole design provides balanced interruption and protection across all conductors in a 3‑phase circuit, helping to prevent uneven loading and potential equipment damage.
• High-current capability: 400 A rating supports substantial loads common in industrial environments, enabling reliable interruption and system safety without oversizing components.
• Versatile usage: Suitable for maintenance cycles, panel retrofits, and strategic replacements where matching ratings and form factor are required.
• Safety and reliability in mind: Built to perform under demanding conditions typical of commercial power distribution, helping minimize unplanned downtime.

Use cases and scenarios

• Upgrading or renewing aging switchgear where a 400A, 3‑pole, 415V breaker is specified.
• Phase-balanced protection in 3‑phase motors, drives, and distribution panels that operate at ~415V systems.
• Quick inventory solution for maintenance teams to keep spare breakers on hand for fast replacements.
• Retrofit projects where equipment catalogs reference the 504C740G07 part number for compatibility.

Installation and verification tips

• Always confirm fit and ratings against your panel label or documentation before ordering.
• Use the 504C740G07 part number as the primary compatibility reference to avoid mismatches.
• Inspect the breaker’s mounting footprint and terminal connections to ensure seamless integration with existing bus bars and wiring.
• Store spare units in a clean, dry environment to maintain performance readiness for future maintenance needs.

Whether you’re performing routine maintenance, updating an aging distribution system, or stocking a replacement-ready component for critical equipment, the Westinghouse 504C740G07 circuit breaker delivers dependable 3‑phase protection with clear compatibility guidance. Add it to your toolkit to ensure you have the right part on hand when timing matters most.