The SSR-20WA-R1 1kW AC Motor Soft Starter is a compact electronic motor control module designed to provide smooth and gradual startup for compatible single-phase AC motors.

By progressively increasing the voltage supplied to the motor, the soft starter helps reduce sudden starting current, mechanical shock, and stress on connected equipment.

Featuring adjustable starting voltage and soft-start duration, this module is suitable for compatible water pumps, ventilation fans, conveyors, and other motor-driven applications.

Key Features

• 1kW Rated Power: Designed for compatible AC motor applications up to the specified rating.
• Soft Start Function: Gradually increases motor voltage during startup.
• Adjustable Startup Time: Soft-start duration adjustable from 0 to 30 seconds.
• Adjustable Starting Voltage: Approximately 20–50% of rated voltage.
• Reduced Mechanical Stress: Helps minimize sudden torque and mechanical shock.
• Electronic Voltage Control: Solid-state operation without mechanical switching contacts.
• Compact Design: Suitable for installation in electrical control enclosures.
• Simple Adjustment: Onboard controls for startup parameters.

Technical Specifications

Operating Principle

The SSR-20WA-R1 gradually increases the voltage supplied to a compatible AC motor during startup.

1. Initial Startup: The motor receives a reduced starting voltage.
2. Voltage Ramp: The voltage progressively increases over the selected startup period.
3. Normal Operation: The motor reaches its normal operating voltage.

This process helps reduce abrupt acceleration and mechanical stress on connected equipment.

Applications

• Water Pumps
• Ventilation Fans
• Belt Conveyors
• Industrial Equipment
• HVAC Systems
• Compatible Single-Phase AC Motors
• Motor-Driven Machinery

Important Notes

• High Voltage: Installation must be performed by qualified electrical personnel.
• Confirm the motor type, voltage, rated current, and starting requirements before installation.
• The 1kW rating is a nominal product rating and must be checked against the actual motor load.
• The advertised 380V application requires confirmation from the manufacturer's documentation.
• Soft starters are not variable-frequency drives (VFDs) and do not provide continuous motor speed regulation.
• Reduced starting voltage also reduces available motor starting torque.
• Appropriate overload protection, short-circuit protection, and heat dissipation may be required.
• Not suitable for DC motors.

Package Includes

• 1 × SSR-20WA-R1 1kW AC Motor Soft Starter Module