Schneider Electric FA14020B I-Line Circuit Breaker Takeout

FA14020B is a 1-pole, 20-amp I-Line molded-case circuit breaker from Schneider Electric (Square D) designed for use in I-Line panelboards with a 480Y/277 VAC supply. It features a line-side I-Line connection configured for B-phase, accepts 14–4 AWG aluminum or copper conductors on the load side, and employs thermal-magnetic protection for precise overcurrent control. With an 80% continuous rating, it provides an 18 kA interrupting rating at 480Y/277 VAC and up to 25 kA at 120/240 VAC, making it suitable for protecting single-phase circuits in commercial and industrial distribution. The FA14020B uses I-Line plug-in mounting and is part of the FA I-Line family, commonly applied as a circuit-breaker takeout in Schneider Electric panel infrastructure to protect 277/480 V lighting and power circuits and other equipment fed from these panelboards.