Westinghouse Cutler-Hammer FD3100 Circuit Breaker

The Westinghouse Cutler-Hammer FD3100 3‑Pole Molded Case Circuit Breaker delivers reliable overcurrent and short-circuit protection for industrial and commercial electrical distribution. This 3‑pole, 100 A breaker is rated for 600 V AC and provides 35 kAIC at 480 VAC or 18 kAIC at 600 VAC, with a thermal-magnetic trip and long-time/instantaneous (LI) trip functions. Designed for bolt-on mounting in F-frame assemblies, it belongs to the FD/Series C/Blue family and is compatible with Westinghouse/Eaton/Cutler-Hammer panelboards and switchgear, making it suitable for panelboards, switchgear, motor control centers, control panels, and bus duct plug-in units in factories, HVAC systems, commercial buildings, and industrial machinery. Applications include branch circuit and feeder protection in manufacturing facilities and other demanding environments, ensuring dependable interruption in 50/60 Hz power systems.