Square D EDB34050N Molded Case Circuit Breaker

Square D EDB34050N is a 3‑pole molded‑case circuit breaker from Schneider Electric’s Square D EDB line, rated at 50 A for 277/480 VAC service and designed for bolt‑on mounting on an E‑frame. It uses a thermal‑magnetic trip and delivers an 18 kA interrupting rating at 480 VAC, providing robust overcurrent protection for three‑phase branch circuits in commercial power systems. This unit is intended for use in Square D NF panelboards, where it protects lighting and distribution circuits; its three‑phase configuration and compatibility with standard E‑frame installations make it a common choice in medium‑duty panelboard applications. The EDB34050N embodies the standard E‑Frame molded‑case breaker design, combining a compact form with rugged construction for demanding environments, and its 50 A rating supports typical feeder and branch protection needs in 480Y/277 VAC systems. Some listings note a 40°C ambient rating, reflecting its suitability for typical commercial installations.