Overvoltage Protection Devices

CNKA overvoltage protection devices Introduction

China Suppliers CNKA's low-price overvoltage protection devices in stock feature automatic reclosing functionality. This device automatically disconnects the power supply when overvoltage or undervoltage exceeds the specified value and can detect the circuit voltage. When the voltage returns to normal, it will automatically reconnect. These overvoltage protection devices are primarily used for protecting household and commercial distribution lines (single-phase AC230V) against overvoltage, undervoltage, phase loss, and zero line faults.

CNKA overvoltage protection devices Parameter (Specification)

CNKA overvoltage protection devices Feature

The overvoltage protection devices utilize a high-speed micro low-power processor as the control circuit core, and the main circuit features a modular standard design with a magnetic holding relay. When overvoltage or undervoltage occurs in the power supply line, the device can quickly and safely disconnect the circuit even under continuous high-voltage impact, effectively preventing damage and accidents to terminal appliances caused by abnormal voltage. Once the voltage returns to normal, the overvoltage protection device will automatically reconnect the circuit within the specified time, ensuring that terminal electrical equipment operates normally without requiring manual intervention.

CNKA overvoltage protection devices Details

CNKA overvoltage protection devices Dimensions and wiring

CNKA  overvoltage protection devices FAQ

Q: What is the difference between an overvoltage/undervoltage protector and a self-resetting overvoltage/undervoltage protector?

A: Standard overvoltage/undervoltage protectors often need to be used in conjunction with a circuit breaker. When the voltage in the circuit becomes unstable, the protector triggers the circuit breaker to trip. However, after the circuit breaker trips, both the circuit breaker and the overvoltage/undervoltage protector need to be manually reset. This process can be inconvenient, particularly in areas with unstable power supplies or for users who are away from home, as they might worry about issues like their refrigerator malfunctioning.

In contrast, a self-resetting overvoltage/undervoltage protector not only provides overvoltage and undervoltage protection but also automatically restores the power supply once the voltage returns to normal. There is no need for manual intervention to reset the device; it will automatically reconnect the circuit after a specified delay. If voltage issues persist, the device will trip again, offering a more convenient and user-friendly solution, especially for ordinary household users.