Square D By Schneider Electric FAP36040 Circuit Breaker

Square D by Schneider Electric FAP36040 is a 600V molded-case circuit breaker rated at 40 A and three-pole, designed for FA/FAP frame installations and I-Line panelboards. This 3-pole unit provides thermal-magnetic overcurrent protection for three-phase circuits with a short-circuit interrupt rating up to 18 kA at 480V, enabling it to safely interrupt fault currents in commercial and light-industrial power distributions. As part of the FA/FAP family, the FA36040 offers consistent performance within FA-series configurations and is compatible with I-Line panelboard bus systems, simplifying integration into existing distribution schemes. The molded-case construction delivers rugged insulation and durable mechanical construction, while the device is intended for use as a feeder or branch-circuit protector in 3-phase installations that require reliable 40 A protection at up to 600 V. This model is commonly used to protect motors, HVAC equipment, conveyors, and other three-phase loads in commercial facilities, where precise 40 A protection with a known interrupting rating supports safe, code-compliant operation.