The Schneider Electric Altistart 48 Soft Starter — ATS48C48Q is a heavy‑duty industrial soft starter designed to provide smooth starting and stopping control of three‑phase asynchronous motors. It is part of the Altistart 48 series and is intended for demanding applications such as pumps, fans, compressors, and other large motor‑driven equipment requiring reduced mechanical and electrical stresses during motor start‑up and shut‑down. This soft starter supports torque control and integrated motor protection functions in distributions without an internal bypass, and is suitable for both standard and severe duty conditions