R-K Electronics, Inc. Protection Relays & Systems TVM-200-20-2004

The TVM-200-20 is a three-phase voltage relay for motor protection, detecting overvoltage, undervoltage, phase loss, and incorrect phase rotation. It has a plug-in, 8-pin octal package with a dust cover and weighs approximately 4.5 oz. The device operates on 200 to 250VAC, 3Ø, with a fixed 0.5-second pick-up and drop-out delay. Its output contacts are rated at 10A at 250VAC, 1/2 HP at 250VAC, 1/3 HP at 125VAC, and 10A at 30VDC. The relay energizes only when all phases are present, voltages are within ±13% of nominal, and rotation is A-B-C. It includes a status LED and operates within 0°C to 40°C ambient temperatures. It is listed and uses an OT-08 socket for mounting.