R-K Electronics, Inc. Protection Relays & Systems TVM-200-22

The TVM-200-22 is a three-phase voltage relay designed to protect motors by monitoring line voltage, phase rotation, and phase loss. It is mounted as a plug-in unit with an 8-pin octal termination and includes a dust cover. The device operates on 200 to 250VAC, three-phase, at 50/60Hz, with a fixed 0.5-second pick-up and drop-out delay. Its output contacts are rated for 10 amps at 250VAC, 1/2 HP at 250VAC, 1/3 HP at 125VAC, and 10 amps at 30VDC. It operates in ambient temperatures from 0°C to 40°C and stores from -40°C to 85°C. The relay energizes only when all phases are present, voltages are within a ±16% window of nominal, and phase rotation is A-B-C. A status LED indicates normal operation. The unit weighs approximately 4.5 ounces.