The RVS-DN is a highly sophisticated and reliable three-phase motor soft starter designed for use with standard three-phase, three-wire and six-wire, squirrel cage induction motors. It provides the best method of reducing current and torque during low voltage motor starting. This heavy-duty three-phase starter starts the motor by supplying a slowly increasing voltage to the system. This provides a soft start and smooth, stepless acceleration while drawing the minimum current necessary to start the motor.