Westinghouse | 504C740G21 | Circuit Breaker | 150A | 3-Pole | 600V | Bolt-On

Meet the Westinghouse 504C740G21 Circuit Breaker — a purpose-built protection device designed for reliability in modern electrical panels. This 150A, 3-pole, 600V bolt-on model is your go-to choice for upgrading, replacing, or maintaining three-phase systems where exact specs matter.

Key advantages of this Westinghouse bolt-on circuit breaker:

• Three-pole configuration for 3-phase protection: Safely interrupts current in 3-phase circuits, supporting systems up to 600V.
• 150A rating for robust circuit protection: Handles substantial loads common in commercial and light industrial environments.
• Bolt-on mounting: Facilitates secure, straightforward installation and service swaps in compatible panels.
• Direct reference for compatibility: The part number 504C740G21 is the best comparison point—confirm fit and ratings with your panel labeling before ordering.

Where this model shines:

• Maintenance: Replacing aging or failed breakers in existing panels without redesigning the system.
• Retrofit: Upgrading to a higher-current, three-phase protection where a bolt-on style is required.
• Replacement: Keeping spare parts on hand for rapid service and reduced downtime.
• Ideal for: Commercial buildings, data centers, manufacturing facilities, and any installation with 3-phase 600V service needing reliable 150A protection.

Installation and safety notes:

• Verify fit and ratings against your panel labeling and the part number before purchase.
• Follow all electrical code requirements and panel manufacturer recommendations during installation.