R-K Electronics, Inc. Protection Relays & Systems PVCO-600-AR

The PVCO series is a three-phase voltage relay for monitoring line voltage, phase rotation, phase imbalance, and phase loss in 3Ø systems. It mounts on a surface with screw terminals and includes a dust cover. The 600 Series variant operates on 575VAC to 600VAC, with output contacts rated at 5 Amps at 240VAC and 7 Amps at 120VAC, supporting up to 100,000 electrical cycles and 10,000,000 mechanical cycles. It features a fixed 5-second pick-up and drop-out delay. Operating temperature ranges from -20°C to 40°C, with storage from -20°C to 85°C. The relay energizes only when all phases are present, balanced, within 10% of nominal voltage, in correct rotation, and within frequency tolerance. It contains an SPDT or DPDT output option and a normal condition LED indicator.