Square D FHB36030 3-Pole I-Line Circuit Breaker

Square D by Schneider Electric FHB36030 (also cataloged as FH36030) is a 3-pole, 30-amp, 600-volt molded-case circuit breaker designed for I-Line plug-in installation in industrial panelboards. It belongs to the FH/I-Line family and provides thermal-magnetic overcurrent protection for feeders and branch circuits in commercial and light-industrial electrical distributions, featuring a line-side I-Line connection and load-side lugs for 14-4 AWG aluminum or copper conductors. This 3-pole device is rated for up to 600 V and carries an interrupting capacity that varies by listing, with common listings showing substantial fault current capability (up to around 18 kA at 600 V in typical FH/FHB configurations).