Square D by Schneider Electric FA-32020 I-Line Circuit Breaker

The Square D by Schneider Electric FA-32020 I-Line Molded Case Circuit Breaker is a 240 V, 20 A, 3-pole (3P) protective device built on the FA frame for use in I-Line panelboards, offering plug-in installation and three-phase protection. It uses a thermal-magnetic trip mechanism and accepts 14-4 AWG aluminum or copper conductors on the line side with load-side lugs for standard terminations. Catalog entries show interrupting ratings ranging from 10 kA at 240 V to 25 kA at 240 V depending on configuration, with higher ratings listed at higher voltages (e.g., 18 kA at 480 V) — reflecting the FA family’s multi-voltage footprint. The FA32020 is UL and CSA listed and designed to be compatible with I-Line buses in Square D installations, making it suitable for feeders and MCC applications in commercial or light industrial settings requiring reliable 20 A, 3P, 240 V protection.