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ABB 1SFA898105R7000 PSTX45 Soft Starter, 208-600 V AC

MPN1SFA898105R7000

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ABB PSTX45 soft starter, 1SFA898105R7000, 208-600 V AC, built-in electronic overload, auto phase sequence detection, multi-protocol communication.

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1SFA898105R7000 key specifications
Parameter	Value
Terminal type	Cable Clamp
Product main type	PSTX45
Voltage	208 ... 600 V AC
Initial voltage during start	10 ... 99 %
Step down voltage special ramp	100 ... 10 %
Rated control supply voltage	100 ... 250 V AC
Rated control circuit voltage	24 V DC
Technical UL (CSA, maximum operating voltage UL, CSA)	Main Circuit 600 V
Current limit function	1.5 ... 7.5 xle
Starting capacity at maximum rated current ie	4xIe for 10s
Rated operational current - In-Line connection	45 A
Rated operational current - inside delta connection	76 A

All specifications

1SFA898105R7000 additional specifications
Parameter	Value
Technical UL (CSA, horsepower rating UL, CSA)	(200 ... 208 V AC) Three Phase 10 Hp
Rated operational power - In-Line connection	(230 V) 12.5 kW
Rated operational power - inside delta connection	at 230 V 25 kW
Rated frequency	50/60 Hz
IP rating	acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00
Protocol	Modbus-RTU; Modbus-TCP; Ethernet-IP; EtherCAT; DeviceNet; CANopen; Profibus; Profinet; BACnet-IP; BACnet-MSTP
Switch for inside delta connection	Yes
Material compliance (SCIP)	e1fe3351-a6ac-4cbd-aebf-814f3a66a5bc China
Popular downloads (CAD dimensional drawing)	2CDC001079B0201
Material compliance (Toxic substances control act - TSCA)	2CMT2023-006524
Material compliance (Conflict minerals reporting template)	9AKK108467A5658
Technical UL (CSA, tightening torque UL, CSA)	Main Circuit 70.8
Function	Auto phase sequence detection
Ramp time	1 ... 120 second [unit of time]
Analog outputs	0...10 V, 0...20 mA, 4...20 mA
Warning details	Current imbalance warning; Current underload warning; Electronic overload Time-to-trip; EOL warning; Faulty fan warning; Locked rotor warning; Motor runtime limit warning; Over voltage warning; Phase loss warning (for standby); Power factor underload warning; Short circuit warning (for Limp mode); THD(U) - Total Harmonic Distortion warning; Thyristor overload warning (SCR); Under voltage warning; Voltage imbalance warning
Run signal relay	Yes
Tightening torque	Main Circuit 8 N·m
Fault signal relay	Yes
Overload protection	Built-in electronic overload protection
Protection function	Bypass open protection; Current imbalance protection; Current underload protection; Dual overload (separate overload for start and run); Earth fault protection / ground fault protection; Electronic overload protection, EOL; Extension IO failure protection; Fieldbus failure protection; HMI failure protection; Locked rotor protection; Max number of starts/hour; Over voltage protection; Phase reversal protection; Power factor underload protection; PT-100 connection; PTC connection; Too long current limit protection; Too long start time protection; Under voltage protection; User defined protection; Voltage imbalance protection
By-pass signal relay	Yes
Overload signal relay	Yes
Ambient air temperature	Operation -25 ... +60 °C
Service factor percentage	100 %
Object classification code	Q
Popular downloads (EPLAN data)	9AAC181161_EPLAN
Signal indication fault	Red
Integrated electronic overload	Yes
Connecting capacity main circuit	Hole Diameter 8.5 mm
Signal indication running r	Green
Connecting capacity supply circuit	Rigid 1 x 2.5
IDEA granular category code	4740 >> Soft starter
Signal indication protection	Yellow
Connecting capacity control circuit	Rigid 1 x 2.5 mm²
Popular downloads (Instructions and manuals)	1SFC132428M0201
Popular downloads (Data sheet, technical information)	1SFC132012C0201
Popular Downloads/Instructions and manuals (Part 2)	1SFC132081M0201
Popular Downloads/Instructions and manuals (Part 3)	1SFC132060M0201

Product details

What the PSTX45 brings to a motor control center

The ABB PSTX45 soft starter (order code 1SFA898105R7000) is a current-production solid-state reduced-voltage starter rated for 208-600 V AC motors. Its built-in electronic overload protection eliminates the separate overload relay, saving a DIN-rail slot and one wiring step in the panel. Auto phase sequence detection means the unit checks rotation before the motor spins — useful when a line mechanic swaps a motor and the phase order is unknown.

Ramp, protection, and communication — what matters on the line

Ramp time is adjustable from 1 to 120 seconds, covering gentle acceleration for conveyors and faster starts for pumps. The protection suite includes locked rotor, earth fault, phase reversal, and under/over voltage — all configurable without an external relay. Communication options span Modbus RTU/TCP, EtherNet/IP, EtherCAT, PROFINET, BACnet, and CANopen, so it folds into most control architectures without a gateway. Analog outputs provide 0-10 V, 0-20 mA, or 4-20 mA feedback for PLC trending or remote monitoring.

Frequently asked questions

What is the price of 1SFA898105R7000 PSTX45 softstarter?

Pricing for the 1SFA898105R7000 is confirmed at quote time against an RFQ. Submit a request for current pricing and availability.

What communication protocols does the PSTX45 support?

The PSTX45 supports Modbus-RTU, Modbus-TCP, EtherNet/IP, EtherCAT, DeviceNet, CANopen, PROFIBUS, PROFINET, BACnet-IP, and BACnet-MSTP — ten protocols covering most industrial and building-automation networks without a gateway.

How do I replace a failed PSTX45 softstarter with a new unit?

The PSTX45 is a direct form-fit-function replacement for itself. Verify the motor FLA against the unit's rating, copy the parameter set via the HMI or fieldbus, and re-torque the main circuit connections to 8 N·m.