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Product: PSTX720-600-70 Softstarter
The softstarter PSTX720-600-70 from ABB has a rated maximum operational current of 720 A with an operating voltage span from 208 to 600 V AC. The rated control voltage range is 100 to 250 V AC at 50/60 Hz. It features a three-phase control soft start and stop through a voltage or torque ramp with built-in bypass for easy installation and energy saving.
Dimensions: Width 43.5 cm, Height 49.3 cm, Depth 36.9 cm.
Weight: 46.5 kg.
Rated operational power (inline connection): 200 kW at 230 V, 400 kW at 400 V, 500 kW at 500 V; Rated operational current (inline): 720 A.
Rated operational power (inside delta connection): 355 kW at 230 V, 710 kW at 400 V, 880 kW at 500 V; Rated operational current (inside delta): 1247 A.
Service factor: 100%.
This softstarter includes built-in electronic overload protection with integrated electronic overload function.
Starting capacity: 4 times rated current Ie for 10 seconds.
Ramp time: 1 to 120 seconds.
Control functions: Current limit from 1.5 to 7.5 times Ie, initial voltage during start from 10% to 99%, step down voltage special ramp 100% to 10%. It supports both inline and inside delta connections with switching.
Signals from relay outputs with normally open state are available for RUN, BY-PASS, FAULT, and OVERLOAD.
Analog outputs: 0–10 V, 0–20 mA, 4–20 mA.
Communication protocols: Modbus-RTU; Modbus-TCP; Ethernet-IP; EtherCAT; DeviceNet; CANopen; Profibus; Profinet; BACnet-IP; BACnet-MSTP.
Degree of protection: According to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00.
Connection types: Main Circuit uses bars; Control and supply circuits use rigid 1 x 2.5 mm² wiring.
Tightening torque: Main circuit at 45 N·m, UL/CSA tightening torque 398.3.
Operating ambient temperature: -25 to +60 °C; Storage temperature: -40 to +70 °C.
Protection functions include: Bypass open protection, current imbalance, current underload, dual overload, earth fault, electronic overload (EOL), extension IO failure, fieldbus failure, HMI failure, locked rotor, max starts per hour, overvoltage, phase reversal, power factor underload, PT-100 and PTC connections, long current limit, long start time, undervoltage, user defined protection, and voltage imbalance.
Warning indications include: Current imbalance, current underload, electronic overload time-to-trip, EOL warning, faulty fan, locked rotor, motor runtime limit, over voltage, phase loss, power factor underload, short circuit (limp mode), harmonic distortion, thyristor overload, undervoltage, voltage imbalance warnings.
Horsepower ratings (UL/CSA): 250 HP at 200-208 V AC, 300 HP at 220-240 V AC, 600 HP at 440-480 V AC, 700 HP at 550-600 V AC.
Package dimensions: Width 60 cm, Depth 61.6 cm, Height 80 cm; Gross weight 58.5 kg.
WEEE Category: 5. Small Equipment (No External Dimension More Than 50 cm).
Product complies with: Conflict Minerals Reporting Template, REACH, RoHS directives, and TSCA.
This softstarter is suitable for medium to large-sized three-phase motors with nominal currents from 30 to 1250 A inline connection or 52 to 2160 A inside delta connection. Typical applications include pumps, fans, compressors, and conveyors.
