Mining flameproof vacuum feed switch application scope and use:

Product Introduction

Product Detail：

Mining flameproof vacuum feed switch application scope and use:

When the supply of electricity lines appeared cut short or leaks can automatically cut off the circuit. The switch itself with leakage protection function, when used for the switch leakage protection with three symmetrically. The switch with selective leakage protection function, when used as a branch of the switch with leakage lockout.Overload protection with inverse time characteristics for coal mine, in AC 50HZ, voltage up to 1140V, rated current 400A (200A) and below the power supply system, as a master switch, but also as a large capacity motor infrequent start with.

Mining flameproof vacuum feed switch main technical parameters:

1、rated voltage:660V/1140V

2、rated current： 630A 500A 400A

3、Power frequency：50HZ

4、working system:continuous duty

5、control operating voltage： 48V ~ 127V

6、 dimension：508*780*854

7、 weight:300kg

8、Ultimate breaking capacity：12.5KA（630switch）9KA（400、500switch）

9、 electrical life：3000time

10、 mechanical life： 10000time

Mining flameproof vacuum feed switch product fetures:

1.with closing and opening, fault indication, insulation resistance table shows kilohms.

2.overload, short circuit multiples can tuning, tuning dial code via plug-ins;

3. switch with short circuit, overload, leakage lockout, three-phase symmetry leakage protection, selective leakage protection, leakage protection switch thirds of backup protection and other protection;

4.Wind Power Gas power lockout function, remote trip function.