HPS2DN IS A NEW INTELLIGENT MOTOR SOFT STARTER WHICH RESEARCHED AND DEVELOPED ON THE BASIS OF ORIGINAL ,WEITH THE MOST ADVANCED DIGITAL PROCESSOR WHICH CAN ADJUST VOLTAGE AND LIMIT THE ELECTRIC CURRENT. THE UNIQUE INTELLIGENT ELECTRONIC CIRCUIT OFFERS PERFECT CONTROL AND PROTECTIVE FUNCTION; START LINEARLY WITH HIGHER SPEED, STARTING AND STOPPING CONTROL OF THE PUMP.PRESET RUN AT A LOW SPEED (ROTATING AND OVERTURNING ADUJSTMENT IN SHORT TIME OF ELECTRO-CONTROLLING TYPE). PRESETALBLE DUAL START STOPPARAMETER SWITCH FREELY, CAN MONITOR THE LOAD STATE AND REALIZE AUTOMATICALLY RUN WITH ENERGY SAVING OR LIGHT LOAD MODE THE PROTECTIVE FUNCTION OF ELECTRICAL MACHINERY INSULATING TESTING .AND THE PROTECTION OF SHORT CIRCUIT, PHASE LOSS AND THE ELECTRONIC.