Voltage Monitoring Relay with Over Voltage Protection is designed with phase to phase neutral voltage monitoring facility and provided with plug in type [11 Pin] enclosure which is suitable for control panels and machinery in industry. The Monitoring Relay is designed with over and under voltage protection. The Monitoring Relay requires 110/ 230/ 415VAC+/-20%, 50 Hz power for operation and delivers output of 1C/ O relay 5A at 230VAC. Voltage Monitoring Relay with Over Voltage Protection is strong and rigid in construction and requires minimal maintenance.