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

The PVCL-600-AR is a three-phase voltage relay designed to monitor line voltage, phase rotation, phase imbalance, and phase loss in systems operating at 575VAC to 600VAC, 3Ø. It features surface mounting with screw terminals, a dust cover, and weighs approximately 8 oz. The relay has SPDT or DPDT output contacts rated at 7 Amps at 120VAC and 5 Amps at 240VAC, with 100,000 electrical cycles and 10,000,000 mechanical cycles. It includes a 5-second fixed pick-up and drop-out delay, operates within -20°C to 40°C ambient temperatures, and auto-resets upon restoration of normal conditions. The device detects phase imbalance at 5% variance and phase loss down to 95% of nominal voltage, with a maximum frequency shift tolerance of 0.1Hz.