The working principle of the overvoltage and undervoltage protector is to detect the voltage change in the circuit. When the voltage exceeds the specified range, the protector automatically cuts off the circuit to protect the equipment.
| Operating Voltage | 220V AC |
| Operating Frequency | 50 Hz-60 Hz |
| Under Voltage Cut-off | 165V AC |
| Over Voltage Cut-off | 255V AC |
| Delay Time | 210s+Bypass |
| Output Capacity | 13A,2860W |
| Packing | Double Blister |
| Warranty | 1 Year |
1. When installing, select the appropriate protector model and rated voltage according to the requirements of the electrical equipment;
2. The protector should be installed at the power inlet of the electrical equipment to cut off the circuit in time;
3. The circuit of the protector should be fixed and reliable to avoid loosening due to vibration;
4. Check whether the installed protector is sensitive and reliable to ensure normal operation.
| Product Name | Product Stats | Size | Download |
| AVS13 Power Voltage Protector | 1.27 MB |  |
| Package info | Carton | Q’TY | G.W | SINGLE PACK |
| 45*33*38CM | 100PCS | 11.5KGS | BLISTER |
Yes, voltage protection sockets can effectively prevent abnormal voltage from damaging equipment. This type of socket monitors the voltage in real-time through a built-in overvoltage protection device (such as a Zener diode, thyristor, etc.). When the voltage is detected to exceed the safety threshold (such as 255V), it will automatically cut off the power supply or limit the voltage output to protect the connected appliances.
When the voltage exceeds the preset value, the protection circuit cuts off the power supply.
Applicable to areas where the grid voltage fluctuates frequently, or precision equipment that is sensitive to voltage (such as computers, electric kettles, TVs, electric heaters, coffee machines, laptops, electric stoves and induction cookers, dryers, audio equipment, etc.)
It is not recommended to connect devices with current greater than 13A to voltage protection sockets for the following reasons:
Exceeding load capacity: The current carrying capacity of voltage protection sockets is limited, and high-power devices may cause overload, resulting in damage or failure of the protector.
Starting current shock: The instantaneous starting current of motor equipment (such as refrigerator compressors) may trigger the malfunction of the protector, affecting normal use.
Special equipment requirements: Industrial equipment or equipment that requires stable high current (such as welding machines) should use dedicated circuits instead of ordinary voltage protection sockets.
| Features | Surge Protector | Voltage Protector |
| Main functions | Protection against instantaneous high voltage (such as lightning strikes, power grid surges) | Deal with continuous overvoltage or undervoltage (such as power grid fluctuations) |
| Response time | Nanosecond response (for transient pulses) | Millisecond to second response (for continuous voltage anomalies) |
| Core components | Variator (MOV), gas discharge tube | Voltage comparator, relay, SCR, etc. |
| Protection range | Short-term surge (microsecond level) | Long-term voltage anomalies (such as continuous high or low voltage) |
| Typical applications | Lightning protection, electromagnetic interference suppression | Stabilize household or industrial electricity and protect equipment from overvoltage/undervoltage damage |
| Reference standards | EN61643-11 (international standard for surge protectors) | No unified standard, some are integrated in sockets (such as safety sockets) |
Summary: Surge protectors are for instantaneous high voltage pulses, while voltage protectors are for continuous voltage anomalies. The two can be used complementary
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