The Altistart 48 soft start soft stop unit is a controller with 6 thyristors which is used for the torque controlled soft starting and stopping of three phase squirrel cage asynchronous motors.
Exclusive Altistart torque control (patented by Schneider Electric)
Constant control of the torque supplied to the motor during acceleration and deceleration periods (significantly reducing pressure surges)
Facility for adjusting the ramp and the starting torque
Starter can be bypassed using a contactor at the end of the starting period whilst maintaining electronic protection
Wide frequency tolerance for generator set power supplies
Starter can be connected to the motor delta terminals in series with each winding