Eaton GHB3040 - 40A, 3-Pole, Circuit Breaker

Eaton GHB3040 is a purpose-built 40A, 3-Pole circuit breaker designed to deliver dependable overcurrent protection in the most demanding electrical environments. Its three-pole configuration ensures simultaneous disconnection of all phases, enhancing safety and protecting equipment in 3-phase systems. Designed for flexible integration in panelboards, switchboards, and control panels, the GHB3040 fits into a wide range of distribution architectures and is well-suited for industrial, commercial, and OEM applications where reliable protection and safe operation are critical in motor control centers and distribution panels. Key advantages that set the GHB3040 apart

• 3-Pole protection for complete 3-phase safety — ensures all live phases trip together, preventing phase imbalance and reducing fault risk.
• 40A rating tailored for motors and feeders — provides precise protection for mid-sized motor circuits and feeder lines without nuisance tripping.
• Industrial-grade reliability — built to withstand the rigors of busy electrical rooms and machinery environments where uptime matters.
• Versatile installation options — engineered for panelboards, switchboards, and control panels, making it a versatile choice for new builds or upgrades.
• Seamless integration with Eaton ecosystems — designed to work consistently with other Eaton protection devices, simplifying configuration and maintenance.

Real-world use scenarios

• Primary overcurrent protection for three-phase motor circuits in manufacturing lines, pumps, or HVAC drives within distribution panels and MCCs.
• Reliable protection in commercial electrical rooms powering multi-phase equipment and process-control panels.
• Efficient replacement or upgrade within existing Eaton-based installations to achieve robust 3-phase protection at 40A.

What you can expect when you choose the GHB3040

• Clear, predictable interruption during overload or short-circuit events, helping to minimize equipment damage and downtime.
• Consistent performance across diverse environments—from busy industrial floors to structured commercial installations.
• A focused, purpose-built solution for three-phase systems where dependable protection and safe shutdown are non-negotiable.

Specifications at a glance

• Current rating: 40A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

The Eaton GHB3040 delivers targeted, reliable protection for three-phase systems, helping you safeguard valuable equipment, maintain uptime, and simplify panel design and maintenance in industrial, commercial, and OEM settings.