Softstart ATS22

Schneider Electric Altistart 22 (ATS22) — Soft Starters

The Altistart 22 (ATS22) series by Schneider Electric is a range of soft starters designed for three-phase squirrel-cage asynchronous motors from 4 to 400 kW. The key advantage of the ATS22 is its integrated bypass contactor, which automatically shunts the thyristors once the motor reaches full speed. This reduces heat dissipation and improves overall energy efficiency. Browse our complete soft starter catalogue for more options.

Key Features of the ATS22 Series

• Torque control — unlike basic starters, the ATS22 controls motor torque directly, ensuring smooth acceleration from standstill to rated speed.
• Built-in bypass — once the motor reaches nominal speed, the internal contactor bypasses the power thyristors, reducing power losses and heat generation.
• Wide range — 15 frame sizes with rated current from 17 to 590 A, mains voltage 230–440 V (plus or minus 15%) for Q models and 590–690 V for S6 models.
• Motor protection — built-in thermal motor protection, phase loss detection, overload protection and rotor jam detection.
• Digital keypad — configure start/stop parameters, view real-time current and status information.

ATS22 Product Lineup

Our catalogue features 30 ATS22 models for two voltage classes — 400 V (Q suffix) and 690 V (S6 suffix):

690 V models (S6 suffix) are also available for every current rating — from ATS22D17S6 (17 A) to ATS22C59S6 (590 A).

How to Choose an ATS22 Soft Starter

When selecting an ATS22, consider the following parameters:

• Motor rated current — select a soft starter model with a rated current equal to or greater than the motor's nominal current.
• Mains voltage — Q models for 230–440 V networks, S6 models for 590–690 V networks.
• Load type — standard duty (pumps, fans) or heavy duty (compressors, conveyors). For heavy-duty loads, consider selecting one frame size larger.
• Starting frequency — for frequent starts (more than 5 per hour), derate the unit or choose a larger frame size.

Other Soft Starter Series

In addition to the ATS22, we offer other Schneider Electric series and leading manufacturers:

• Schneider Electric ATS48 — for high-power motors with advanced protection
• Schneider Electric ATS01 — compact solutions for smaller motors
• Danfoss MCD500 — versatile soft starters with torque control
• Siemens SIRIUS 3RW44 — industrial series with extended communication

Warranty and Support

All ATS22 soft starters come with an official manufacturer's warranty. Our engineers can assist with optimal model selection, parameter configuration, and commissioning. Order your ATS22 with delivery across Ukraine.