Display Voltage: Display operating voltage value
Over/under voltage protection: when the voltage is too high or too low, power off the equipment.
Phase-out protection: When the three-phase power supply lacks phase or serious imbalance, cut off the equipment power.
Phase sequence protection: When the three-phase power phase sequence error, power off the device.
Sound and light alarm: a sound and light warning occurs when the above fault occurs.
Main technical parameters
Rated control voltage US: Phase voltage ac-220v Line voltage ac-380v Supply voltage error: -15%~+10%