Westinghouse | F3040L | Circuit Breaker | 40A | 3-Pole | 600V

Westinghouse F3040L 40A 3-Pole 600V Circuit Breaker is a rugged, reliable overcurrent protection device designed for industrial and commercial electrical systems that require a 3-pole configuration and a 600-volt maximum rating.

Identified by the part number F3040L, this breaker is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter. Its 40-amp capacity and three-pole design make it well-suited for protecting 3-phase circuits and motor loads in panelboards that demand robust, dependable protection.

• Amperage: 40 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Reference: Best compatibility reference is the F3040L part number
• Usage: Replacement, retrofit, or maintenance for panels that require a 3-pole, 40A, 600V device

Why this Westinghouse breaker stands out is its clear alignment with real-world panel needs. It isn’t just about meeting specs on paper—it's about dependable protection for everyday operations. With the F3040L, technicians can efficiently swap in a device that mirrors the original configuration, reducing downtime and ensuring continuity for critical loads.

Ideal use cases include:

• Routine maintenance where you need a matching 3-pole, 40A, 600V breaker to restore original protection levels
• Retrofits in older or compatible panelboards that require a 3-phase 40A device
• Replacement of failed breakers in commercial or light-industrial electrical systems

Compatibility and installation considerations: - Before ordering, confirm fit and ratings match your panel’s requirements. The F3040L is the most reliable reference for compatibility with systems designed for this specification. - This part is intended for use by qualified electricians following applicable electrical codes and safety practices. - Ensure the panel’s bus configuration and trip characteristics align with a 3-pole, 40A, 600V device to maintain proper protection and coordination.

Practical benefits in the field include straightforward stock management for service teams, consistent protection across multiple enclosures, and a reliable, familiar Westinghouse design that technicians trust. If you’re upgrading or maintaining a panel that originally called for a 3-pole, 40A, 600V breaker, the F3040L is a precise, compatible choice that helps keep your electrical system protected and running smoothly.