The ABB 1SFA898220R7000 is a PSTX1050 soft starter with auto phase sequence detection, sized for three-phase motors on 208-690 V AC supplies. Ramp time is adjustable from 1 to 120 seconds, giving you control over acceleration profiles for conveyors, pumps, or fans. The built-in electronic overload protection eliminates the need for a separate overload relay, saving panel space and wiring.
This soft starter supports Modbus-RTU, Modbus-TCP, Ethernet-IP, EtherCAT, DeviceNet, CANopen, Profibus, Profinet, BACnet-IP, and BACnet-MSTP — covering essentially every industrial network in common use. Analog outputs are configurable for 0-10 V, 0-20 mA, or 4-20 mA, so you can feed speed or current signals directly to a PLC analog input card without an external signal conditioner.
Protection and warnings
The PSTX1050 includes protection functions: current imbalance, current underload, earth fault, locked rotor, over/under voltage, phase reversal, and PT-100/PTC connection for motor thermal monitoring. Warning outputs cover the same conditions plus fan fault, EOL, and THD(U).
