The start potentiometer sets the initial voltage to 200V when adjusted halfway. The soft start potentiometer provides a maximum ramp-up time of 30 seconds, corresponding to a full output of 380V. Example settings: - Minimum adjustment: starting voltage 0V, soft start duration 0 seconds (not recommended) - Power supply 220V, set to halfway: start voltage 55V, soft start time approximately 22 seconds - Power supply 380V, set to halfway: start voltage 95V, soft start time approximately 22 seconds - Power supply 220V, set to maximum: start voltage 110V to 220V, soft start time approximately 15 seconds - Power supply 380V, set to maximum: start voltage 190V to 380V, soft start time 15 seconds Recommended model selection margin: 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 ranges are compatible with this device. Applications for single-phase 220V soft start modules include: Petroleum, chemical, fire protection, construction, metallurgy, building materials, mining, environmental protection, and related industries. Suitable for fans, pumps, belt conveyors, ball mills, car wash machines, conveyors, and compressors. Ideal replacement for traditional reduced-voltage starting methods such as star/delta starters, autotransformer starters, magnetic starters, and inverters. Single-phase motor soft start module (motor control application): Models available: - 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 guideline: 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 match). This soft start module is compatible with various single-phase motors, regardless of capacitor use. For continuous operation, motors above 2000W require 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 380V–400V AC Frequency range: 50Hz, 60Hz Soft start time is adjustable from 0 to 30 seconds (refers to the complete voltage rise from 0 to 220V or 0 to 380V). Gradually increases output voltage from 0V to full rated voltage (220V or 380V). Two operational modes: 1. Close the switch to energize the main power and initiate soft start. 2. Use the switch to control start and stop functions—close to start, open to stop. Available configurations: - SSR-40WA-R1: Soft start function only - SSR-40WA-R2: Includes both soft start and soft stop functions Notes: - Do not apply voltage directly to the control switch. - Do not use a multimeter on the load side to assess product functionality. - Performance subject to field testing. Operating temperature range: -25°C to 60°C