Purpose

It is suitable to the coal mine well with mixed explosive gas containing methane. In the power supply system of 50 Hz AC, rated voltage of 1140 V and below and the triphase neutral not grounding directly. the product can be used as power distribution main switch , power distribution branch switch and also the control of motor which does not start frequently .

Technical Features

• With display of closing, breaking ,fault and insulation value of Kilohmmeter;
• Times of over load and short circuit are possible to modify by plug-in code dial;
• With protective functions of short circuit, over load, current leakage locked, triphase symmetrical current leakage ,optional current leakage, backup protection of current leakage of branch switch;
• With wind electricity and methane protective functions.

Technical Data