Eaton GBH3040 40A 3-Pole 600 V Circuit Breaker

The Eaton GBH3040 40A 3-Pole 600 V Circuit Breaker (Part Number GBH3040) delivers reliable protection for three-phase electrical systems in demanding environments. Built to handle 600 V installations, this 40-amp unit is designed to safeguard feeders, motors, and distribution panels from overcurrent events, helping to minimize downtime and equipment damage.

Key advantages

• Three-pole design provides comprehensive protection across all phases of a 3-phase system, essential for balanced load protection.
• 40 A rating matches a range of moderate-to-heavy three-phase loads, helping prevent nuisance trips while safeguarding circuits.
• 600 V voltage rating suited for industrial and commercial environments where higher voltage distribution is common.
• Part Number GBH3040 ensures precise ordering, replacement, and compatibility within Eaton’s modular protection ecosystem.

This breaker is especially well-suited for environments where three-phase equipment drives efficiency and productivity—think industrial machinery, conveyors, HVAC systems, pumps, and other motor loads that rely on stable, three-phase power. By interrupting current during fault conditions, it helps protect wiring, controllers, and connected components from damage, supporting safer operation and easier maintenance schedules.

Why choose this Eaton model? If your setup uses a 600 V three-phase distribution, the GBH3040 offers a purpose-built solution with a straightforward ordering path (Part Number GBH3040) and a design tuned for dependable performance in professional electrical installations. This is a practical, long-term choice for facilities prioritizing consistent protection and streamlined maintenance on their three-phase circuits.

Note: Verify that your installation matches the 600 V, three-pole configuration and replace like-for-like when upgrading or replacing existing protection devices.