Eaton GHB1040 - 40A, 480VAC, Circuit Breaker

Eaton GHB1040 is a rugged 40A circuit breaker rated for up to 480V AC, designed to shield critical electrical systems from overcurrent in demanding industrial and commercial environments.

Whether you're configuring a new control panel, upgrading a switchboard, or stocking OEM equipment for field installation, the GHB1040 provides reliable, fast-acting protection when it matters most.

Key specifications

• Current rating: 40A
• Voltage rating: 480VAC
• Breaker type: Circuit Breaker
• Typical applications: panelboards, switchboards, control panels, OEM equipment

What makes it uniquely suited for heavy-duty use

• Designed for dependable overcurrent protection in distribution panels and motor control centers, helping minimize downtime and equipment damage
• Built to perform in industrial environments where consistent trip characteristics protect motors, drives, and feeders
• Simple integration into existing 480V electrical architectures, with the same form factor expectations as standard 40A devices

Practical use cases

• New installations: implementation in 480V distribution panels for manufacturing lines or facility electrical rooms
• Panel or switchboard upgrades: replace aging breakers on 40A circuits to restore protected operation
• OEM equipment protection: as the protective element in machine controls, conveyors, and automated systems

Tips for optimum performance

• Confirm your enclosure and bus configuration matches the GHB1040’s mounting and 480V rating before installation
• Coordinate protection with upstream devices to ensure selective tripping and minimal disruption during faults
• Periodically inspect connections for tightness and signs of wear to maintain reliable operation

With the Eaton GHB1040 circuit breaker handling 40 amps at 480V, you gain a trusted line of defense for your power distribution—reducing risk, protecting valuable equipment, and helping keep operations running smoothly.