Application 

This serial of electrical switch can be used in the underground environment which is full of methane,dust and other explosive gas. Under the non-ground three phase current of 50Hz and voltage of 1140V, it can be used as a main switch, branch switch and the infrequent start. 

Features

This product is able to depart the valve manually and the valve will be opened electrically when the failure happens. It adopts module designing, reasonable in structure and easy to fix and maintain.

Adopting the latest big amount micro processor with high-precision data processing and protection high response speed. The protection of the power leaking, under pressure, over pressure ,short circuit, phase break ,distant depart, gas protection wind and thunder lock is equipped.

Equipped with error memory function.

Time, current of the three phases, voltage, insulating resistance, wind electricity lock, working condition all will be shown on the screen. 

Main technical parameters