The start potentiometer sets the initial voltage to 200V when adjusted halfway. The soft start potentiometer allows a maximum ramp-up time of 30 seconds, corresponding to the full output of 380V. Example settings: - Minimum setting: starting voltage 0V, soft start duration 0 seconds (not recommended) - Power supply 220V, adjusted to half: start voltage 55V, soft start time approximately 22 seconds - Power supply 380V, adjusted to half: start voltage 95V, soft start time approximately 22 seconds - Power supply 220V, fully adjusted to maximum: start voltage range 110V to 220V, soft start time approximately 15 seconds - Power supply 380V, fully adjusted to maximum: start voltage range 190V to 380V, soft start time 15 seconds Recommended 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 ratings are compatible with this device. The single-phase 220V soft start module is used in industries such as petroleum, chemical, fire protection, construction, metallurgy, building materials, mining, and environmental protection. Typical applications include fans, pumps, belt conveyors, ball mills, car wash machines, conveyors, and compressors. It serves as a reliable alternative to traditional reduced-voltage starting methods such as 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 operating current — (Power ÷ Voltage) × 5. For example, an 8000W motor at 220V: (8000 ÷ 220) × 5 = 181.81A; select the closest model (e.g., 200WA). This soft start module is universally compatible with motors, regardless of capacitor usage. Motors above 2000W should be equipped with a heatsink for continuous operation. Voltage compatibility for single-phase motors: - 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: 50Hz or 60Hz Soft start time is adjustable from 0 to 30 seconds, representing the full ramp-up from 0V to rated voltage (220V or 380V). The starting voltage gradually increases from 0V to reach the full operating voltage. Two operational modes: 1. Close the switch to energize the main power and initiate soft start. 2. Use an external switch to control operation — close to start, open to stop. Module functionality by model: - SSR-40WA-R1: Soft start only - SSR-40WA-R2: Soft start and soft stop Important notes: - Do not apply voltage directly to the switch terminals. - Do not use a multimeter on the load side to test the module’s condition. - Performance subject to field verification. Operating temperature range: -25°C to 60°C