HEF435040 | Circuit Breaker | 40A | 3-Pole | 480V

Meet HEF435040, a rugged industrial circuit breaker engineered for reliability in 480V three-phase power systems. With a 40A rating across 3 poles, it provides precise overload protection for feeders, motors, and distribution circuits in maintenance, retrofit, and replacement projects.

Why choose HEF435040

• Amperage: 40A — designed to protect circuits with typical loads up to 40 amps in 480V systems.
• Poles: 3-Pole — ensures simultaneous protection of all three phases, maintaining balanced protection and trip coordination.
• Voltage rating: 480V — suitable for industrial 3-phase distribution networks common in manufacturing, processing, and large facilities.
• Industrial-grade construction tailored for demanding environments where dependable protection is essential.
• Best compatibility reference is the exact part number HEF435040, and you should confirm fit and ratings before ordering.

Ideal use cases

This circuit breaker is ideal for scenarios where exact spec matching matters: upgrading legacy panels to 480V three-phase systems, retrofitting equipment with current protection, or replacing a failed breaker in critical process lines. It’s well-suited for motor feeders, transformers, and branch circuits that require reliable protection at 480V.

How to verify compatibility

Because panel configurations vary, the HEF435040 reference is your best guide for compatibility. Before purchasing, verify the breaker’s physical fit, mounting style, and ratings match your panel’s requirements and the upstream supply.

Practical tips for best results

• Always order using the exact part number to avoid mismatches in panel compatibility.
• Consult your panel documentation for acceptable breaker types, frame size, and trip characteristics to ensure coordinated protection with other devices.
• Keep spare components if applicable and review any panel-specific installation guidelines to ensure a safe, compliant setup.