Schneider Electric FA36040 ILine Circuit Breaker

Schneider Electric's Square D FA36040 is a three-pole FA I-Line molded‑case circuit breaker rated for 600 V and 40 A, designed for use in FA/I‑Line panelboards and switchboards. It uses a thermal‑magnetic trip mechanism to provide overload and short‑circuit protection for three‑phase feeders and features line‑side I‑Line connections with load‑side lugs that accept up to 14‑1/0 AWG aluminum or copper conductors. Interrupting ratings for this model vary by voltage, with up to 25 kA at 240 VAC, 18 kA at 480 VAC, and 14 kA at 600 VAC, making it suitable for medium‑power electrical distributions. The FA36040 is UL‑listed and part of the I‑Line family, intended for plug‑in installation in compatible Square D panelboards for reliable overcurrent protection in commercial and industrial applications.