Square D NSB FA36015 Molded Case Circuit Breaker

The Square D NSB FA36015 is a 3-pole molded case circuit breaker (MCCB) from Square D/Schneider Electric, rated at 15 A with a 600 VAC / 250 VDC voltage rating. Built on the FA frame, it employs a thermal-magnetic trip mechanism and provides a line-side I-Line connection with ABC phase terminals and load-side lugs for 14–4 AWG aluminum or copper conductors. Its documented interrupting ratings are up to 25 kA at 240 V, 18 kA at 480 V, and 14 kA at 600 V, making it suitable for protecting feeders and motor circuits in industrial installations. This compact 3P MCCB is designed for use in panel assemblies needing reliable overcurrent protection in a 15A, 3-pole form factor.