Feature: 1. Solves the problem of slow start of 1-20KW low power motor, three-phase motor soft start module supports easy installation. 2. Motor controller can be used to replace soft start of inverter or star-delta, etc. 3. Not require particularly complicated operations, such soft start controller is made by exquisite craftsmanship. 4. Keeps super simple wiring, motor start board is powerful and there is no need to connect bypass contactor. 5. Meanwhile, motor controller can be used widely for water pump, fan, air vehicle or ordinary motor soft start. Specification: Item Type: Motor Controller Model: TSR-40WA-R1（4KW ) (with soft start without soft stop) Suitable for Three-Phase: 380V Compatible: 50-60HZ Radiator Voltage: Default 220VAC Soft Start Time : 30 seconds adjustable (time rise refers to 0-380V). Starting Voltage: Adjustable slow start from 150-250V to rated voltage (380V) Two Ways to Use: 1. While switch closed, the soft start of the main power supply starts. 2. Use switch to control, start by closing the soft start, stop when disconnected. Selection: 10A below 1KW, 20A below 2KW, 40A from 3-4KW, 60A from 5-6KW, 80A from 7-8KW, 100A from 8-10KW, 150A from 11-15KW, 200A from 20KW.If the heat sink is larger, the heat sink should also be matched. Applicable Places: Widely used in fans, pumps, belt conveyors, ball mills, conveyors and compressors as an excellent replacement for traditional for star-delta conversion, auto-coupling voltage reduction, magnetron voltage reduction, frequency converter and other voltage reduction starting equipment, safe and reliable. . Package List: 1 x Module Note: Needs no switch contactor, three-phase motor soft start module supports long time working.