Single Phase Motor Soft Starter Module

This SSR-based single/two-phase motor soft starter module is a fully automatic, easy-to-wire solution for AC motor soft start control. Compatible with 110V/220V/380V AC and 50/60Hz frequency, it effectively eliminates inrush current during motor startup, protecting motors and mechanical equipment from impact. With adjustable soft start time and starting voltage, it is an ideal replacement for autotransformers, magnetic voltage reducers, and traditional inverter soft starters, featuring simple wiring, reliable performance, and cost-effectiveness.

中文属性	英文属性（工业标准）	属性值（英文）
产品名称	Product Name	Single/Two Phase Motor Soft Starter Module (SSR Type)
产品型号	Model Number	SSR-20WA-R, SSR-40WA-R, SSR-60WA-R, SSR-100A-R, SSR-150WA-R, SSR-200A-R
适配电机	Compatible Motor	Single Phase / Two Phase / Three Phase AC Motor
额定电压	Rated Voltage	110V/220V/380V AC (Customizable)
频率兼容	Frequency Compatibility	50Hz / 60Hz
功率范围	Power Range	0.75KW, 1.5KW, 2.2KW, 4KW, 6KW, 8KW
软启时间	Soft Start Time	0-30s Adjustable
起始电压	Starting Voltage	0-50% of Rated Voltage Adjustable
控制模式	Control Mode	1. Power-on Soft Start (Jumper Installed); 2. External Switch Control (Jumper Removed)
程序版本	Program Version	R1 (Soft Start Only, Default); R2 (Soft Start + Soft Stop); R3 (Soft Stop to 0V)
接线方式	Wiring Method	2-In 2-Out (Single Phase); 3-In 3-Out (Three Phase)
散热配置	Heat Sink	Aluminum/Copper Base, Optional Fan Cooling
替代产品	Replacement For	Autotransformer, Magnetic Voltage Reducer, Inverter Soft Starter
应用场景	Application	Water Pump, Fan, Conveyor, Ball Mill, Compressor, Industrial Motor

Core Features

1. Fully Automatic Soft Start
   
   
   Eliminates motor inrush current, reducing mechanical shock and extending motor lifespan. Soft start time (0-30s) and starting voltage (0-50% rated) are fully adjustable for different load requirements.
2. Wide Compatibility
   
   
   Supports 110V/220V/380V single/two-phase and three-phase motors, compatible with 50/60Hz global power grids, suitable for various industrial and commercial applications.
3. Simple Wiring & Easy Installation
   
   
   2-in 2-out (single phase) / 3-in 3-out (three phase) wiring, no bypass contactor required. Two control modes: power-on auto start or external switch control, flexible for different system designs.
4. Multiple Program Options
   • R1 (Default): Soft start only, for one-way start applications
   • R2: Soft start + soft stop (ramp down from set voltage)
   • R3: Soft start + soft stop to 0V, for full ramp control
   
   
5. High Reliability & Durability
   
   
   Solid-state relay (SSR) design, no moving parts, high reliability. Flame-retardant housing, oxidation-resistant contacts, and optional heat sinks/fans ensure stable operation in harsh industrial environments.
6. Cost-Effective Replacement
   
   
   Ideal replacement for bulky autotransformers, magnetic voltage reducers, and expensive inverters, with lower cost, smaller size, and simpler maintenance.

Application Scenarios

• Industrial Equipment: Water pumps, fans, belt conveyors, ball mills, compressors, and other motor-driven loads
• Commercial & DIY: Air compressors, water pumps, small machinery, and motor control projects
• Replacement: Alternative to autotransformers, magnetic voltage reducers, and inverter soft starters

Important Notes

• Default Setting: Factory default is R1 (soft start only). R2/R3 versions require special order notes.
• Power Rating: Panel power rating is for 220V (single phase) / 380V (three phase). Power conversion is required for other voltages.
• Heat Dissipation: Must be installed with a heat sink (small power models can be mounted on metal plates). Fan voltage: 220V for single phase, 380V for three phase.
• Switch Control: No external voltage allowed on the control switch.