Westinghouse | RFA3040 | Circuit Breaker | 40A | 3-Pole | 600V

Power protection you can trust for three-phase electrical systems. The Westinghouse RFA3040 Circuit Breaker is a 40A, 3-Pole unit rated for up to 600V, engineered for reliable protection in maintenance, retrofit, and replacement scenarios.

Designed for professionals who manage commercial or industrial electrical panels, this breaker provides precise overcurrent protection to prevent equipment damage and improve safety. The three-pole configuration supports balanced three-phase circuits, helping keep motors, transformers, and control systems running smoothly.

Key specifications

• Amperage: 40A
• Pole configuration: 3-Pole
• Voltage rating: 600V
• Part number: RFA3040

Why choose this Westinghouse RFA3040

The RFA3040 is purpose-built for compatibility with existing Westinghouse panels and other systems with matching specs. When ordering, always confirm fit and ratings using the part number—RFA3040 is the most reliable reference for compatibility. This approach minimizes downtime and ensures you get a device that integrates cleanly with your breaker panel, bus, and trip characteristics.

Use cases and scenarios

Ideal for:

• Replacing a failed 3-pole breaker in a 3-phase 600V distribution panel serving motors, HVAC equipment, or heavy-duty transformers.
• Retrofits where a 40A protection level is needed to safeguard equipment and wiring without interrupting production.
• Maintenance projects that require a direct, drop-in replacement with identical ratings to avoid rewiring or panel modification.

What makes it different from generic breakers

Standard, off-brand substitutes can introduce compatibility risk with panel mounting, trip characteristics, and wiring terminals. The Westinghouse RFA3040 uses precise contact geometry and labeling aligned with Westinghouse and shared industry standards, reducing misfit scenarios and ensuring consistent performance in demanding environments.

Practical tips for installation and longevity

• Before installation, verify the panel’s voltage class and the wire sizing match your 40A, 3-Pole 600V requirements.
• Handle with care during removal and replacement to maintain terminal torque and integrity.
• Document the part number (RFA3040) in your maintenance records for fast future replacements.

Restore reliable protection to your three-phase electrical system with the Westinghouse RFA3040 Circuit Breaker — engineered for dependable performance, straightforward compatibility, and peace of mind in critical applications.