Westinghouse A201K3CA Three Phase AC Contactor

The Westinghouse A201K3CA is a 90 A, three‑phase, non‑reversing magnetic contactor from the A200 Series (Model K), designed to switch and control industrial motors and power circuits in motor control systems. This Size 3, 3‑pole device operates at 200/230 V with a 110/120 VAC coil (50/60 Hz), providing 25 HP at 208 V, 30 HP at 240 V, and 50 HP at 480–600 V, and is intended for panel or enclosure mounting in motor starters, control panels, manufacturing equipment, and automation systems within industrial facilities. Common replacements include Allen‑Bradley Bulletin 509 Size 3 Contactor, Siemens SIRIUS 3RT Series Contactor, and Eaton A200 Series Size 3 Contactor.