Scope of application and usage:

It is applicable to coal-mine downhole containing explosivity gas(methane),during the circuit of AC 50Hz,voltage 1140/660V,control electropower driving directly,stopping,meanwhile replace switch of disrotatory ventilation fan and gas electricaloutage instrument,aslo protect electromotor and related circuit.

Main features:

1It possesses the funtion which adopt digital electronic protector as below:         a. overloading inverse time limit protection;         b. short circuit time delay protection;        c. loss of phase protection        d. phase imbalance protection        e. main circuit creepage atresia protection2starter possesses protection device:        a. undervoltage protection        b. on/off overvoltage protection

Main technical parameters of QJZ electromagnetic starter:

Note:The above parameter is for your reference only,it can be modified without separate notification.