Self-Resetting Overvoltage and Undervoltage Delay Protection Device Three-Phase 4P63A

Usually, a 4P electrical disconnector is adopted as the main electrical circuit on-off control switch, and an intelligent controller is equipped for three-phase voltage sampling measurement and drive control of the micro electric operating mechanism. The intelligent controller monitors the three-phase voltage in real time. When the voltage exceeds the normal range, it controls the micro electric operating mechanism to open the 4P electrical disconnector through the transmission handle, cutting off the circuit. When the voltage returns to normal, control the switch to close and restore power supply.

The fully automatic overvoltage and undervoltage delay protector is a new generation of product developed by our company in response to market demands. This protector is rationally designed and assembled with imported components and well-known domestic brand components, and is manufactured by advanced technological means. The product can quickly and reliably cut off the power supply under high voltage impact and low voltage conditions to protect household appliances. When the voltage returns to the normal value, it can automatically reconnect the circuit and restore power supply after a delay. It can effectively protect appliances from the impact of instantaneous power supply. All functions are fully automated and do not require dedicated operation. It adopts dual-color LED indication.It is generally installed in the distribution box, close to the incoming line end, in order to protect the entire three-phase circuit. It is widely applied in three-phase power supply systems of industries, commercial buildings and households, such as power distribution systems in factory workshops, shopping malls, office buildings, hotels and other places, providing overvoltage and undervoltage protection for three-phase motors, air conditioners, elevators and other equipment.