Square D by Schneider Electric FA36100 Three Phase Circuit Breaker

Square D by Schneider Electric FA36100 is a three-pole molded‑case circuit breaker designed for three‑phase feeders in commercial and light industrial panelboards, offering robust protection in a compact, plug‑in form factor. Rated for 100 A at 600 V AC, this FA‑series device uses a thermal‑magnetic trip mechanism and, in I-Line installations, accepts ABC phase connections for straightforward wiring and mounting. The unit carries an interrupting rating of 14 kA at 600 VAC (higher ratings at lower voltages), ensuring rapid isolation of faults in demanding three‑phase circuits. Schneider Electric lists FA36100 as discontinued and points to a PowerPact B 100 A, 3‑pole replacement rated for 600Y/347 VAC for new designs; check current catalogs and distributors (for example Grainger or Rexel) for available substitutes or stock.