Description
Explosion-proof mine starters MQJR series is designed to operate in
three-phase networks with isolated neutral and switched load voltage up to 1140 V.
More details:
Structurally, the device consists of an explosion-proof shell divided into 4 isolated compartments with a quick open door. Level explosion protection of the shell corresponds to the type PB Exd [ia] I Mb. Inside the shell placed a vacuum contactor, reversible disconnector, and microprocessor control and protection unit.
The remote control unit is mounted on a panel inside the housing and has protection against breakage and short circuit between the conductors of the remote control circuits. The functions of current protection, insulation control, voltage control and other service functions are performed by a microprocessor control and protection unit.
