Motor Control of Voltage Protector Relay for Phase Protection Relay
Applications
Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection of over-voltage. Under-voltage, phase failure, phase sequence and phase unbalance. When the power supply is abnormal, turn off power supply to protect the equipment.
Features:
Built-in microprocessors, true RMS voltage measurement, voltage measurement accuracy ≤1%.Measuring frequency 45Hz~64Hz,button setting, LCD display voltage and fault information, protection can be turned on or off. Check phase voltage value by button, with N-phase phase failure protection, DIN rail mounting.

Model significance:
ZHRV2-S/M240 LCD display voltage relay, rated working voltage 220V-230V-240VAC (3-phase 4-wire). Over-voltage setting range: AC221V-300V, Under-voltage setting range: AC150V-219V.