Westinghouse 9083A88G03 Voltage Monitoring Relay

The Westinghouse 9083A88G03 PVR-1C is a three-phase voltage monitoring relay designed to protect motors, pumps, compressors, and other three-phase equipment from damaging power conditions on 480 VAC systems. It continuously monitors phase loss, phase reversal, phase imbalance, and undervoltage conditions; when an abnormal condition is detected, it activates its output contacts to shut down or alarm connected equipment, helping prevent motor damage and unplanned downtime. Applications include motor control centers, HVAC systems, pumping stations, conveyors, and other industrial process systems, with installation suited for control panels in industrial and commercial electrical settings. Key specifications: Input voltage 480 VAC, System Type 3-Phase AC, Output Type Relay Contact Output, Model PVR-1C, Part Number 9083A88G03, Manufacturer Westinghouse Electric Corporation. Common replacements include the Schneider Electric RM35TF30 Phase Monitoring Relay.