Schneider Electric EGB34050 Three Phase Circuit Breaker

Schneider Electric’s Square D EGB34050 is a 3-pole, 50‑amp, E‑Frame molded‑case circuit breaker designed for bolt‑on mounting in commercial and industrial panelboards. Intended for three‑phase distribution, it protects 480Y/277 VAC circuits and handles 50 A under normal operation with a thermal‑magnetic trip to interrupt fault currents. The unit carries a high interrupt rating of up to 35 kA at 480 VAC (and up to 65 kA at 240 VAC), enabling safe disconnection of fault currents in typical three‑phase installations. As part of the EGB family, it is compatible with Square D/Schneider Electric E‑Frame bolt‑on configurations used in panelboards and switchgear, where it serves as a protective device for feeders and motors in 3‑phase circuits. Common applications include protection of three‑phase feeders to large motors, compressors, and other heavy loads in commercial or industrial facilities operating on 480Y/277 VAC systems. The model number, EGB34050, identifies a 50‑amp, 3‑pole unit within the E‑Frame bolt‑on lineup, reinforcing its use in distributed power environments where quick interchangeability with other EGB breakers is beneficial.