As a replacement for traditional star delta starting device and autotransformer for starting motor, the Mining Explosion Proof and Intrinsically Safe AC Soft Starter is used in the underground coal mine with explosive gases in the power line with voltage of 50Hz and 1140 or 660 V respectively for the use of soft start and shutdown of motor with the rated current below 400A, to reduce shock. It is applicable to the control of belt conveyor, AFC, stage loader and other underground equipment.

Product Features:

■Various startup modes: multiple control modes including current-limiting start, voltage harmonics start, close-loop control start and torque control to achieve soft start in different conditions;

■Powerful protection function: over voltage/short voltage / short circuit/open phase/leakage self-locking/overload protection and other protections;

■Display of fault type and descriptions for easy maintenance in case of fault.

■Main control and backup control exist for pump station. In case of main pump breakdown, it can automatically switch to backup pump. Multiple connections will protect all other equipment of AFC & belt conveyor in case one breaks down.