Function: 1. Suitable for soft starting of water pump, fan, vehicle and common single phase motor, this motor starter module provides very simple wiring. 2. The soft start controller allows you to replace the adjustable autotransformer, inverter soft start, etc. 3. No need to connect a bypass contactor, economical and practical, such a motor controller is powerful. 4. Due to its high performance over a long period of time, the engine start plate has the right to a practical adaptation. 5. Depending on the simple installation of the starter unit, it does not require particularly complex operations. Specification: Item Type: Motor start board Type: module / heater module (optional) Model: SSR-40WA-R1 (1.5 kW) (with soft start without soft stop) Voltage compatibility: single phase 220VAC, 2-phase 380VAC, frequency: 50-60Hz Soft start time: adjustable from 0-30 seconds (soft start time refers to the whole process 0-220V, 0-380V) Starting voltage ： Adjustable from 0-50% to rated voltage (220-380V) Two ways to use: 1. When the circuit breaker is closed, power is supplied to the main power source and a soft start begins. 2. Use the switch to control, start by closing the soft start, open the limiter When the start potentiometer is set to half, the start is 200V, The maximum duration of the soft-start potentiometer is 30 seconds, which corresponds to the full range of 380V. For example: when completely set to minimum: 0 V start voltage soft start 0 seconds (0 seconds is not recommended) 220V power supply: When fully adjusted to half the initial 55V, the soft start time is about 22 seconds 380V power supply: when fully adjusted to half of the initial 95V, soft start time is about 22 seconds 220V Power Supply: When fully set to maximum, the initial voltage from 110V to 220V takes 15 seconds 380V power supply: When fully set to maximum, the starting voltage from 190V to 380V takes 15 seconds Size 1: Approx. 92 mm / 3.6 inch About. 74mm / 2.9 in About. 47 mm / 1.9 inch About. 104mm / 4.1 in About. 35 mm / 1.4 inch About. 43 mm / 1.7 in Size 2: Approx. 125mm / 4.9 in About. 80 mm / 3.1 inch About. 110mm / 4.3 in About. 28mm / 1.1 inch About. 100 mm / 3.9 inch Package list: 1 x module