HEG421040 | Circuit Breaker | 40A | 2-Pole | 480V

HEG421040 is a rugged industrial circuit breaker engineered to protect 480V electrical systems with precise, two-pole control. The 40A rating delivers reliable overload protection for feeders, motors, and other high-demand equipment, while the 2-pole design ensures both hot lines are disconnected together for safe maintenance and compliant shutdowns.

Built for maintenance, retrofit, and replacement projects where matching specs matters, this unit is specified by its part number as the most reliable reference for compatibility. When in doubt, use HEG421040 as the anchor in your sourcing workflow to verify fit with your panel boards, MCCs, or switchgear assemblies.

• Amperage: 40A
• Poles: 2-Pole
• Voltage: 480V

Why choose this breaker? It’s designed to slot into established 480V systems where precise ratings are non-negotiable. The 2-pole configuration provides coordinated disconnection, enhancing safety during servicing and reducing the risk of arc flash in multi-conductor installations. This unit is ideal for new installations that require the exact 40A/480V specification and for retrofit projects updating older equipment to modern protection standards.

Practical guidance: Before ordering, confirm the fit and ratings against your equipment’s documentation. The part number HEG421040 is the best compatibility reference—use it to match manufacturer catalogs, panel schedules, and wiring diagrams to avoid mismatches.

In practice, users choose this breaker when they need dependable, spec-accurate protection in 480V industrial environments—from manufacturing lines and HVAC/motor control rooms to power distribution panels. It’s a targeted, no-surprise replacement that keeps downtime to a minimum and protects critical loads with confidence.