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PSTX-XD Enclosed Softstarter

PSTX extreme duty softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for heavy duty applications, plus an AC-3 emergency bypass. Available from 50-900 HP. 

Designed to perform reliably in nearly any environment and on almost any application, the PSTX-XD Enclosed Softstarters combine the best of ABB’s wide range of industrial low voltage controls. PSTX softstarters offer the most advanced features and protections in a single enclosure. Complete with built-in Modbus-RTU and optional Anybus communications, and a AC-3 bypass for emergency starting.


  • Keep your motor safe with built-in motor protections
  • Fast and easy set-up with large graphical display
  • Eliminate water hammering with torque control
  • Reduce energy losses with built-in bypass.


  • UL 508A
  • Operational voltage: 480 V AC
  • Rated operational HP: 50 – 900HP
  • UL 3-wire service entrance rating up to 700HP
  • NEMA Type: 4 enclosure
  • AC-3 Rated Bypass for Emergency Starting
  • Door mounted HMI and pilot devices included