ABB PSTX720-600-70 Soft Starter

The ABB PSTX720-600-70 is the high-capacity member of the PSTX advanced soft starter range, rated for 720A in-line current delivering 400kW at 400V (710kW inside delta). It features torque control, built-in bypass, multilingual graphical display, and coated circuit boards for harsh environments. With comprehensive motor protection, advanced diagnostic event logging, and support for all major fieldbus protocols, it is designed for the largest industrial motor applications including large centrifugal pumps, high-capacity compressors, crushers, mills, marine bow thrusters, and heavy conveyor systems.

Q: What is the ABB PSTX720-600-70?

A: The PSTX720-600-70 is the highest-capacity soft starter in ABB's PSTX advanced range, rated for 720A in-line (1,247A inside delta). It provides torque-controlled soft starting for large three-phase motors up to 400kW at 400V.

Q: What are the electrical specifications of the PSTX720-600-70?

A: Rated for 208–600V AC, 50/60Hz, with 720A in-line current. In-line power reaches 400kW at 400V (500kW at 500V). In inside delta configuration, it handles up to 1,247A and 710kW at 400V. Control supply is 100–250V AC with 24V DC control circuit.

Q: What are the physical dimensions of the PSTX720-600-70?

A: The unit measures 435 × 493 × 368 mm (W×H×D) and weighs 46.2 kg. It requires panel mounting (IP00 main circuit). The display/keypad is IP66/NEMA 4X rated.

Q: What harsh environment features does the PSTX720 have?

A: The circuit boards are coated to withstand dust, moisture, and corrosive atmospheres, making it suitable for deployment in demanding industrial environments such as mining, marine, and chemical processing.

Q: What communication protocols does the PSTX720-600-70 support?

A: Built-in Modbus RTU. Optional Anybus modules add Modbus TCP, EtherNet/IP, Profinet, Profibus, EtherCAT, DeviceNet, CANopen, BACnet-IP, and BACnet-MSTP.

Q: What certifications does the ABB PSTX720-600-70 hold?

A: CE, UL, and CSA certified.