Schneider Electric FA14080C U Circuit Breaker

Schneider Electric's Square D FA14080C U is an 80-amp, 1-pole molded-case circuit breaker from the FA I-Line family, designed for 480Y/277V distribution systems. It provides thermal-magnetic overcurrent protection with an interrupting rating of 18 kA at 480Y/277V (and 25 kA at 120/240V), suitable for commercial and industrial feeder protection. The device accepts line-side I-Line connections and a C-phase connection, with load-side lugs rated for #14–1/0 AWG aluminum or copper conductors, enabling robust wiring in tight panel environments. This 1P unit is 80% rated for continuous operation, making it appropriate for circuits that carry steady loads in 277V lighting or other distribution applications. Part of the FA series, it integrates with Schneider Electric’s I-Line panelboards to deliver reliable protection in compact MCCB form factors, combining precise thermal-magnetic trip characteristics with proven durability for electrical distribution circuits.