Schneider Electric ATSU01N222LT ATSU01 3P 22A 200-480V 4-11kW Altistart Soft Starter

The Schneider Electric ATSU01N222LT is an Altistart ATSU01 series 3-phase electronic soft starter rated at 22A and 200–480V AC, designed to deliver smooth reduced-voltage motor starting for applications requiring controlled ramp-up, lower inrush current, and motor protection. The ATSU01 provides reliable torque control and starting current management for motors from 4 to 11kW, making it an efficient solution for pumps, fans, compressors, and conveyor drives.

Technical Specifications

Applications & Use Cases

• Pump & Fan Drives: Reduces mechanical stress and starting current surges in centrifugal pump and fan applications.
• Compressors: Enables controlled ramp-up to minimise torque shock on compressor drive trains.
• Conveyor Systems: Smooth motor acceleration protects belts, gears, and mechanical couplings from high inrush torque.
• HVAC Systems: Ideal for air handling units and chiller motors where soft starting extends equipment lifespan.
• General Industrial Machinery: Suitable for any 3-phase motor application from 4 to 11kW requiring reduced voltage starting and motor protection.

Frequently Asked Questions

What is the rated current of the ATSU01N222LT?

The ATSU01N222LT is rated at 22A, suitable for 3-phase motors up to 11kW at 480V AC.

What voltage range does the ATSU01 soft starter support?

The ATSU01 operates across a supply voltage range of 200 to 480V AC, making it compatible with both 200V and 400/480V industrial power systems.

What motor power range is supported?

The ATSU01N222LT supports motors from 4kW up to 11kW depending on supply voltage.

What are the key benefits of using an ATSU01 soft starter?

The ATSU01 reduces starting current (inrush), controls ramp-up torque, minimises mechanical stress on driven equipment, and helps protect the motor and connected machinery during start and stop cycles.