QJR-400/1140 (660) Flameproof and Intrinsic Safety BENSHAW soft starter is the application of the latest technology to develop and produce a new generation of high-tech products, the microprocessor control unit uses the original BENSHAW products. It uses an advanced microprocessor and power electronic control technology and digital speed control, AC motor to achieve a soft start function, to maximize the elimination of the mechanical and electrical shocks, extended equipment life, a hydraulic coupling and other motor starting equipment ideal replacement product. It has advanced technology, jobs safe, reliable, easy maintenance, long life protection congruent features, technical performance has reached international advanced level.