Schneider Electric EJB34015 Molded Case Breaker

Schneider Electric's Square D EJB34015 is a three‑pole, 15‑amp molded‑case circuit breaker (MCCB) from the EJB series, built for reliable three‑phase overcurrent protection in commercial and industrial power distributions. This bolt‑on device uses a thermal‑magnetic trip to provide long‑time overload protection and instant short‑circuit response, protecting feeders and branch circuits in demanding environments. It is rated for 277/480 VAC with a 65 kA interrupting capacity at 480 V, offering strong fault‑current protection in 480 V class systems. The MCCB weighs about 1.67 lb and is specified for ambient operation up to 40°C, making it suitable for typical panelboard installations. The EJB34015 designation identifies a 3P, 15A unit in Schneider Electric’s Square D MCCB family, intended for retrofit or new installations that need compact, bolted three‑phase protection. Applications include main or branch protection in commercial and light industrial panels where a compact, high‑reliability breaker is required for 480 V systems. Part numbers like EJB34015 are used when a 3P, 15A, high‑interrupting‑capacity breaker is needed in 480 V distributions.