Westinghouse HFB2040 - 40A, 2-Pole, Circuit Breaker

Westinghouse HFB2040 is a 40A, 2-Pole circuit breaker engineered for reliable overcurrent protection in panelboards, switchboards, and control panels. This unit is ideal for industrial, commercial, and OEM environments where dependable interruption of fault currents is critical for safe operation and uptime.

The 2-Pole design provides simultaneous disconnection of both hot lines, a key requirement for 240V circuits and equipment with dual feeds. Coupled with a 40A rating, it protects feeders and branch circuits in a wide range of distribution configurations while helping to prevent electrical faults from cascading through the system.

• Two-pole configuration ensures coordinated shutoff of both conductors, improving safety and fault clearance for 240V loads.
• 40A current rating targets medium-load circuits commonly found in motor control centers, distribution panels, and equipment feeders.
• Versatile mounting suitable for panelboards, switchboards, and control panels, enabling flexible integration into existing or new installations.
• Reliable Westinghouse performance backed by decades of experience in overcurrent protection for industrial and commercial distribution systems.

Ideal use cases include protecting motor feeders in motor control centers (MCCs), safeguarding branch circuits in commercial distribution panels, and serving as a dependable replacement for aging or failed breakers in OEM assemblies where predictable trip characteristics matter.

Why it matters: by delivering synchronized disconnection on both hot lines with a solid 40A rating, the HFB2040 helps minimize equipment damage, reduce downtime, and maintain safer electrical operations across distribution panels and control environments. Its compatibility with Westinghouse panels simplifies installation and ensures consistent, predictable performance across your electrical infrastructure.

Practical tips:

• Verify that a 40A, 2-Pole device matches your load requirements and the wiring configuration of your panel or MCC before installation.
• Follow local electrical codes and the manufacturer’s installation guidelines to ensure proper mounting and secure terminations.
• When planning upgrades, consider how a 2-Pole 40A breaker fits into your future-proofing strategy for distribution panels and motor control centers.