Square D FA26100AC U Two Pole AC Circuit Breaker

FA26100AC U is a Square D by Schneider Electric molded‑case circuit breaker (MCCB) rated 600 V AC, with a 100 A, 2‑pole configuration designed for I‑Line mounting in industrial power‑distribution panels. It delivers thermal‑magnetic overcurrent protection for two hot legs and carries interrupting ratings up to 25 kA at 240 V, 18 kA at 480 V, and 14 kA at 600 V depending on system voltage. The device is 80% rated for continuous loading and accepts line‑side I‑Line connections with load‑side lugs for 14‑1/0 AWG aluminum or copper conductors, enabling straightforward feeder or branch circuit protection. Typical applications include protecting feeders and large equipment circuits in control panels, switchgear, and industrial distribution where reliable, code‑compliant overcurrent protection is required.