R-K Electronics, Inc. Protection Relays & Systems TVM-600-21-2002

The TVM-600 series is a three-phase voltage relay designed to monitor line voltage, phase rotation, and phase loss in 3Ø systems, with a plug-in, 8-pin octal package and a dust cover. It operates on line voltages from 520 to 600VAC at 50/60Hz, with over/under voltage trip points adjustable to ±16% of nominal voltage. The relay has a fixed 0.5-second pick-up and drop-out delay, a 10A contact rating at 250VAC or 30VDC, and a 1.5VA power consumption. Operating temperature ranges from 0°C to 40°C, with storage from -40°C to 85°C. An LED indicates normal operating conditions. The unit weighs approximately 4.5 ounces and is rated for 1/2 HP at 250VAC or 1/3 HP at 125VAC.