1SFA897111R7000

ABB 1SFA897111R7000 PSE170-600-70 Soft starter is a 171 A three-phase general-purpose soft starter from ABB’s PSE series, designed for controlled starting and stopping of medium-size AC induction motors. It operates on a 208–600 V AC main circuit with a 100–250 V AC, 50/60 Hz control supply. ABB India lists this exact model for 90 kW / 120 HP motor applications. The PSE170-600-70 uses two-phase control and supports soft start and soft stop through voltage ramp or torque ramp control. It includes a built-in bypass, which reduces heat generation and power losses once the motor reaches full operating speed. The unit also provides advanced functions such as current limiting, kick start, electronic overload protection, underload protection, locked-rotor protection, analog output, RUN/TOR/Event relay outputs, and an illuminated display. The PSE series includes built-in Modbus RTU communication and can also communicate through an external Fieldbus Plug adapter. Typical applications include pumps, fans, compressors, conveyors, HVAC systems, water-treatment systems, and industrial machinery.