Westinghouse | 504C743G18 | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On

Meet the Westinghouse 504C743G18 Circuit Breaker—a purpose-built, high-performance protection device engineered for reliability in demanding electrical systems. With a 90A rating, 3-pole configuration, and a 600V operating capability, this bolt-on breaker is tailored for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications at a glance

• Amperage: 90A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Part reference: 504C743G18 (best compatibility reference)

Why this bolt-on configuration matters

The bolt-on design provides a secure, robust attachment to compatible panels, delivering dependable contact and resistance to vibration in demanding environments. This makes it an ideal choice for three-phase circuits where balanced protection is essential, such as industrial controls, commercial power distribution, and service enclosures that require a precise 90A, 600V solution.

Perfect use cases

• Maintenance and retrofit of service panels that require a strict 504C743G18 specification
• Replacement in 3-pole, 90A circuits within 600V electrical systems
• Industrial and commercial installations where secure bolt-on mounting is preferred for durability and ease of service

What sets it apart

Unlike generic breakers, this Westinghouse 504C743G18 is a purpose-matched component designed to align with existing panel architectures that rely on bolt-on connections. Its 3-pole configuration provides comprehensive protection for three-phase circuits, ensuring that all phases are safeguarded under the same protective characteristics. The 600V rating expands its applicability to higher-voltage applications where reliable overcurrent protection is critical.

Practical guidance for ordering and installation

Before you order, confirm fit and ratings to guarantee compatibility with your panel. The part number 504C743G18 is the most reliable reference for ensuring a correct match. If you’re replacing an existing breaker, inspect mounting hardware and bus-bar compatibility to maintain secure electrical contact and consistent protection.

Who benefits most

Electrical professionals, facility managers, and maintenance technicians who work with three-phase, higher-voltage panels will appreciate the clarity of specifications, the bolt-on mounting convenience, and the precise 90A protection provided by this Westinghouse breaker. It’s a dependable choice for retrofit projects where exact part numbers and ratings matter for safety and continuity.