Schneider Electric FA36100 I-Line Circuit Breaker

Schneider Electric’s Square D FA36100 is a 100 A, three‑pole molded‑case circuit breaker designed for 600 V systems. It belongs to the FA family and uses I‑Line plug‑in mounting, enabling direct insertion onto compatible I‑Line bus in Square D panels, with ABC phase terminals arranged for straightforward wiring. The device employs a thermal‑magnetic trip mechanism for overcurrent protection and is rated for 80% continuous operation, making it suitable for sustaining steady loads in distribution feeders. For short‑circuit protection, it provides an interrupting capacity of 25 kA at 240 V, 18 kA at 480 V, and 14 kA at 600 V, aligning with FA/I‑Line performance in commercial and light industrial panelboards. With its 3P design and 600 V rating, the FA36100 protects three‑phase circuits in feeders and disconnect layouts while maintaining a compact form factor within FA‑series enclosures and accessories.