Schneider Electric Soft Starters - Altistart 01 Series Created and designed to operate as a torque limiter on starting, or as a soft start or soft stop unit for asynchronous motors. This range of soft starters enhances the starting performance of asynchronous motors by allowing them to start smoothly, gradually and in a controlled manner. They are compact and easy to install, the Altistart 01 series can be mounted side by side. Features & Benefits