Schneider Electric FA34100 Molded Case Circuit Breaker

The Schneider Electric FA34100 is a 100 A, 3‑pole molded‑case circuit breaker in the FA (F‑frame) family, designed for 480 VAC three‑phase power and compatible with Square D I‑Line panel installations for industrial distributions. It uses a thermal‑magnetic trip mechanism and carries a 14 kA short‑circuit interrupting rating at 480 V (600Y/347 VAC nominal), making it suitable for protecting feeders and distribution circuits across three phases. As of July 12, 2021, Schneider Electric discontinued FA34100 and directs users to PowerPact B as the replacement: a 100 A, 3‑pole unit rated for 600Y/347 VAC with a matching 14 kA interrupting rating, with the BDA36100 as the corresponding replacement part.