Square D EGB34040 - 40A, 3-Pole, Circuit Breaker

Square D EGB34040 is a 40A, 3-pole circuit breaker engineered for dependable overcurrent protection in demanding environments. Built for industrial, commercial, and OEM applications, this device protects distribution panels, motor control centers, and control panels where reliable performance matters most.

Designed for 3-phase systems, the 3-pole configuration provides balanced protection across all live conductors. This means coordinated interruption during fault conditions, helping to minimize equipment damage, reduce downtime, and promote safer panel operation.

• Current rating: 40A
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Ideal for: Panelboards, switchboards, and control panels in distribution and motor control applications
• Best for: Industrial facilities, commercial equipment rooms, and OEM assemblies requiring reliable 3-phase protection

This unit is purpose-built to meet the needs of professionals who install and service critical electrical infrastructure. In motor control centers and other 3-phase distribution setups, the EGB34040 delivers clear, predictable protection, helping you maintain uptime and protect downstream equipment from overloads and short circuits.

Use cases include power feeders for moderate-load motors, protection upstream of essential mechanical systems in commercial buildings, and OEM panel configurations where a trusted 3-pole breaker is required to meet safety and performance standards.

Installation and safety: Follow all local electrical codes and manufacturer guidelines. Ensure the breaker is installed by qualified personnel in compatible Square D panel systems to guarantee proper coordination and protection.