Gelco Electronics Pvt. Ltd. Manufactures Phase Failure Relay with Under-Voltage and Over-Voltage Settings. Gelco Electronics Pvt. Ltd. Also manufactures Motor Spares & Accessories, Level Controllers, Circuit Breakers, Electronic Panels & Displays, Electronic Testing and Measuring Instruments etc. Phase Failure Relay with Under-Voltage and Over-Voltage Settings are applicable to monitor Main Supply Voltage to prevent unit in case of general supply fault like phase lose, phase reversal, under voltage, over voltage. The Phase Failure Relay with Under-Voltage and Over-Voltage Settings are used in control panels for Motor/Pump, Machines, Air conditioner etc. The Phase Failure Relay with Under-Voltage and Over-Voltage Settings also have an Adjustable Phase Unbalance[Voltage] Limit setting.