Square D EGB34015 3-Pole Bolt On Circuit Breaker

Square D by Schneider Electric EGB34015 is a 3-pole, 15 A bolt-on molded‑case circuit breaker from the E‑Frame family, designed for three‑phase protection in 480Y/277 VAC distribution. It provides thermal‑magnetic overcurrent protection and mounts bolt‑on to Square D NF panelboards, making it a direct replacement in three‑phase commercial and light industrial wiring. Rated for 480Y/277 VAC, the EGB34015 has an interrupting capacity of 35 kAIC at 480Y/277 VAC (and 65 kAIC at 240 VAC per data sheets), enabling protection for moderately large branch circuits. The unit’s lugs support #12–#6 AWG aluminum or #14–#6 AWG copper conductors, depending on configuration. It is UL listed and CSA certified, aligning with standard electrical distribution requirements. Applications include motor feeders, lighting, and general three‑phase distribution in commercial or light industrial panels that require bolt‑on mounting.