The start potentiometer sets the initial voltage to 200V when adjusted halfway. The soft start potentiometer has a maximum duration of 30 seconds, corresponding to the full 380V output. Example settings: - Minimum adjustment: starting voltage 0V, soft start time 0 seconds (not recommended) - 220V power supply, half adjustment: start voltage 55V, soft start time approximately 22 seconds - 380V power supply, half adjustment: start voltage 95V, soft start time approximately 22 seconds - 220V power supply, maximum adjustment: start voltage 110V to 220V, soft start time approximately 15 seconds - 380V power supply, maximum adjustment: start voltage 190V to 380V, soft start time 15 seconds General recommendation for model selection: SSR-60WA-R for 2.2kW applications. This product is suitable for motors operating at the following voltages: - 220V (50Hz, 60Hz) - 230V (50Hz, 60Hz) - 240V (50Hz, 60Hz) These voltage ratings are compatible with this product. Application areas for single-phase 220V soft start modules include: Petroleum, chemical, fire protection, construction, metallurgy, building materials, mining, environmental protection, and other industrial fields. Commonly used for equipment such as fans, pumps, belt conveyors, ball mills, car wash machines, conveyors, and compressors. Ideal replacement for traditional reduced-voltage starting methods including star/delta starters, autotransformer starters, magnetic controllers, and inverters. Available models for single-phase 220V motor soft start modules: - SSR-20WA-R1 (1kW) - SSR-40WA-R1 (1.5kW) - SSR-60WA-R1 (2kW) - SSR-100WA-R1 (4kW) - SSR-150WA-R1 (6kW) - SSR-200WA-R1 (8kW) Selection guide: Calculate based on 5 times the actual operating current: Power Voltage 5 Example: For an 8000W motor at 220V 8000 220 5 = 181.81A select 200WA model (closest available). This soft start module is compatible with various single-phase motors, regardless of capacitor use. For continuous operation, motors above 2000W should be equipped with an external heat sink. Voltage compatibility: - 220V + 0V = single-phase 220V AC - 230V + 0V = single-phase 230V AC - 240V + 0V = single-phase 240V AC - 220V + 220V = two-phase 380V400V AC Frequency: 50Hz or 60Hz Soft start time is adjustable from 0 to 30 seconds (refers to the ramp-up time from 0V to full voltage: 220V or 380V) Gradually increases output voltage from 0V to 50% initial voltage, then ramps up to full rated voltage (220V380V). Two control methods: 1. Close the switch to energize main power and initiate soft start. 2. Use switch to control operation: close to start, open to stop. Module functions vary by model: - SSR-40WA-R1: Soft start only (no soft stop) - SSR-40WA-R2: Includes both soft start and soft stop functions Important notes: - Do not apply voltage directly to the control switch terminals. - Do not use a multimeter on the load side to test or evaluate product functionality. - Performance subject to field testing and verification. Operating temperature range: -25C to 60C