The AC/DC voltage monitoring relay with LCD display is a multifunctional monitoring and protection device. The relay is applied in supply voltage of DC 12V, AC/DC 24-48V or AC/DC 110V-240V to protect the equipment or devices from undervoltage and overvoltage in the applications like air compressors, electric motors, pumps, fans, air-conditioning system, blowers, elevators, cranes, refrigeration equipment, laser equipment, industrial control system, etc.
Note:1. Relay contacts position shown in "Power-on" (Healthy) condition. If power is off or any fault occurs, the relay contacts will be opposite to the diagram.2. For DC power, the polarities must be correctly connected. Otherwise, the relay doesn't work.