Schneider Electric FC24040AC I-Line Circuit Breaker

Schneider Electric's Square D FA24040AC I-Line molded‑case circuit breaker is a 2‑pole, 40 A device designed for 480 V AC single‑phase distribution, with plug‑in mounting for FA I‑Line panelboards. This thermal‑magnetic breaker provides overload and short‑circuit protection, featuring an interrupting rating up to 18 kA at 480 V (and 25 kA at 240 V in FA‑series data) and supporting A‑ and C‑phase configurations typical of I‑Line installations. For conductor versatility, it accepts 14–1/0 AWG aluminum or copper on both line and load terminals, with the two‑pole design ensuring simultaneous disconnection of both hot lines. The FA24040AC is intended where a compact, easily replaceable 40 A protection point is required in 480 V systems, and it pairs with compatible FA‑series accessories and panelboards that accept I‑Line plug‑in breakers, enabling streamlined branch‑circuit protection in industrial or commercial power distribution.