R-K Electronics, Inc. Protection Relays & Systems TVM-600-20

The TVM-600-20 is a three-phase voltage relay designed to monitor line voltage, phase rotation, and phase loss in 520 to 600VAC systems. It features a plug-in, 8-pin octal package with a dust cover and weighs approximately 4.5 ounces. The relay operates within ambient temperatures of 0°C to 40°C and uses 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. The device includes a status LED and is configured for over and under voltage protection with a 16% window relative to nominal voltage. It requires a 600V OT-08 socket for installation.