Industrial EGB34050 3 Pole Bolt On Circuit Breaker

The EGB34050 is Square D’s 50-amp, 3-pole E-frame bolt-on circuit breaker, designed for 480Y/277VAC three-phase service in NF panelboards and similar distribution gear. It delivers thermal-magnetic protection with a maximum interrupt rating of 65 kAIC, enabling reliable interruption of faults on 480Y/277V circuits. This bolt-on device occupies a 3-pole footprint and is intended for use in Square D NF panels with E-frame mounting, providing a secure, factory-bolted connection. Wire termination accepts aluminum or copper conductors in common sizes: 12–6 AWG aluminum or 14–6 AWG copper, supporting typical feeder and branch-circuit wiring. The EGB34050 is offered in a TAA-compliant variant within the Square D lineup and is part of the three-pole, 50A family for demanding commercial and light-industrial distribution networks.