Square D ATS48 Soft Start – Altistart 48

The Altistart 48 (ATS48) soft start features a patented advanced motor control algorithm called TCS or Torque Control System. Without speed feedback, the ATS48 soft start provides constant starting and stopping rates independent of motor loading, just like a more expensive AC drive. Setting the new industry standard for soft starts, the ATS48 controls the applied motor torque, making it ideal for a wider variety of applications than a traditional voltage ramp soft start with the current limit. In pumping applications, the ATS48 with TCS eliminates the long start and stop times, the hydraulic transients and slamming of check valves associated with “pump version” voltage ramp soft starts.

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