The Schneider Electric Altistart 48 ATS48C21Y soft starter is engineered for precise control of three-phase asynchronous motors. This unit is part of the Altistart 48 series, designed for applications such as pumping and ventilation systems where smooth motor acceleration and deceleration are critical. It provides a robust solution for managing motor starting torque and reducing mechanical stress on driven equipment.

Technical details

• Series: Altistart 48
• Model Number: ATS48C21Y
• Motor Power Range: Designed for motors from 45 kW up to 200 kW.
• Input Voltage: Compatible with 208-460V AC, 50/60 Hz power supplies.
• Control Voltage: Operates on 24V AC/DC.
• Starting Current Limit: Adjustable from 1.5 to 8 times the nominal motor current.
• Stopping Mode: Features controlled deceleration to prevent mechanical shock.
• Integrated Bypass: Includes a built-in bypass contactor for full voltage operation after soft start.
• Protection Functions: Offers motor overload, short-circuit, and under-voltage protection.

Applications & compatibility

This soft starter is commonly deployed in industrial environments requiring controlled motor starts and stops. Typical applications include centrifugal pumps, fans in HVAC systems, conveyors, and other machinery where smooth acceleration is necessary to prevent system shock or damage. The ATS48C21Y is suitable for integration into various automation architectures.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the ATS48C21Y or contact our technical team for cross-reference assistance with compatible Altistart components.