Square D FA22040AC I-Line is a 40-amp, 240-volt, two-pole molded‑case circuit breaker designed for I‑Line panelboards. It uses a thermal‑magnetic trip mechanism and accepts 14–1/0 AWG aluminum or copper conductors, with line‑side I‑Line connections and load‑side lugs for straightforward installation. The device is rated for an interrupting capacity of 10 kA at 240 V and is intended for commercial and light industrial branch‑circuit protection.
