I. Product Features
SDS-RQ800 AC motor soft-start control cabinet is a modern, environmentally friendly, and energy-saving product designed and manufactured using power electronics technology, microprocessor technology, and modern control theory. It is an upgraded replacement for traditional relay-controlled magnetic control, autotransformer, and star-delta conversion control cabinets that are widely used today.
1.Reduces motor starting current, lowers power distribution capacity, and avoids expansion investment
2.Reduces starting mechanical stress, extends the lifespan of motors and related equipment
3.Contactless stepless voltage regulation for high current, with strong overload capacity
4.Comprehensive protection functions, stable and reliable performance
5.Suitable for frequent or infrequent starting

II. Basic System Composition and Starting Characteristics

Basic System Block Diagram

Basic Starting Characteristic Curve

III. SDS-RQ800Soft Start Cabinet Types:

1. SDS-801B1One active, one standby 2. SDS-801T2One drive two 3. SDS-801T3One drive three 4 . SDS-801T4One drive four

5. SDS-802B1Two active, one standby

IV. Scope of Application:
　This product is widely used in motor-driven equipment in fields such as electromechanical, metallurgy, construction, mining, petroleum, and chemical industries. It is compatible with electromechanical devices like fans, compressors, water pumps, textile machinery, mixers, refrigeration equipment, rolling machines, conveyor belts, etc., making it an ideal replacement for traditional motor starting devices.