63A2P Overvoltage Automatic Reset Overvoltage and Undervoltage Protector

Overvoltage and undervoltage protectors are mainly used in the incoming lines of residential household distribution boxes or distribution lines that need to protect single-phase electrical equipment, such as power supply systems in homes and small offices, providing overvoltage and undervoltage protection for various electrical equipment such as air conditioners, refrigerators, and televisions.Generally installed at the incoming line of the household distribution box in a residential building or at the front end of the distribution line where single-phase electrical equipment needs to be protected.

product details

Detailed picture

Product description

Overvoltage and undervoltage protection: When overvoltage or undervoltage occurs in the power supply line, it can quickly and safely cut off the circuit to prevent abnormal voltage from damaging terminal electrical appliances. Its overvoltage action cut-off value is AC270±5V, and the undervoltage action cut-off value is AC170±5V.

Automatic reset: Once the voltage returns to the normal value, the protector will automatically reconnect the circuit within the specified time. The power-off delay for power restoration is 30±5 seconds.

Other features: When transient or transient overvoltage occurs in the line, the protector does not malfunction. It shows inverse-time action characteristics, with an action time of ≤1 second. When the fault voltage is high, the protector itself will not be damaged.

Working principle

The interior is mainly composed of three parts: the voltage detection circuit, the control circuit and the actuator. The voltage detection circuit monitors the input voltage in real time. When the voltage exceeds the set overvoltage value or falls below the set undervoltage value, the detection circuit transmits an abnormal signal to the control circuit, which then instructs the actuator to cut off the power supply. When the voltage returns to normal, the control circuit automatically disconnects from the protection state and the actuator reconnects the circuit.

Wiring Method

Parameter Information

Product name	Auto-recovery voltage protective device	Overvoltage starting value	275±5V
Rated current In	63A	Undervoltage starting value	175±5V
The rated voltage	AC230V	A undervoltage Startup time	≤60s
The number of	2P	Self power consumption	<1
Rated frequency	50/60Hz	Electrical mechanical life	>100000 times