Tomzn Auto Phase Selector 3phase 63A under/over Voltage and Current protection Device

Description This is tomzn 3 phase Auto Phase Selector 63Ampere Voltmeter adjustable Over and Under Voltage protection device. Din rail phase selector Voltmeter adjustable Over and Under Voltage protection. This intelligent transfer switch is designed to supply a 220V single-phase load from different power supplies, in order to maintain the uninterrupted power supply of a single-phase essential load. Which is based on presence of voltage and the quality of voltage on phases, it automatically select the optimal power supply and activate the power supply of single-phase load. Overvoltage protection Undervoltage protection Overcurrent protection Voltage display (voltage measurement) Current display (current measurement) Voltage calibration: voltage -9.5% adjustable. Current calibration: current - 9.5% adjustable When the power supply is overvoltage/undervoltage or shutdown, the phase transfer switch automatically transfers to another power supply. It can cut off the power instantly when the line has Defective overcurrent, so as to protect the Electrical equipment to be damaged Advantage: The diverter switch can set which power resource is a priority. When the recovery of the priority phase to normal voltage, the phase transfer switch changes back to the priority power resource.