Schneider Electric NSB EHB24020AS Circuit Breaker

Schneider Electric’s Square D NSB EHB24020AS is a 2‑pole, 20 A molded‑case circuit breaker rated for 480Y/277 VAC with a 14 kA interrupt rating. It uses thermal‑magnetic trip protection and is bolt‑on mountable in compatible panelboards. The EHB24020AS supports Powerlink AS remote operation for integration with remote‑control systems and is part of the Square D EHB family designed for commercial and light industrial distribution. This model is intended for 480Y/277 VAC circuits and should be used where such voltage is available, ensuring enclosure and bus compatibility with the installation. The compact EHB form factor fits standard 2‑pole slots within enclosing panels, and the device accepts Powerlink accessories for optional remote switching or monitoring when paired with the Powerlink interface. Suitable applications include branch circuit protection for commercial lighting, receptacle circuits, and general power distribution in facilities that deploy 480Y/277 VAC infrastructure.