PSTX470-600-70 1SFA898116R7000 ABB Softstarter 50Hz 60Hz 470A 208 600VAC

ABB PSTX470-600-70 1SFA898116R7000 Softstarter 50Hz 60Hz 470A 208 600VAC

Product Overview
The PSTX470-600-70 is ABB's latest generation of intelligent soft starters, designed for three-phase AC motors up to 250 kW (470 A). It operates with a main circuit voltage of 208–600 V and a control power supply of 100–250 V, 50/60 Hz. It integrates thyristor voltage regulation, torque control, built-in bypass, and Modbus RTU communication, enabling smooth starting, soft stopping, and comprehensive motor protection for pumps, compressors, fans, conveyors, and other applications.

Core Advantages
• Low-impact starting: Thyristor voltage ramps up gradually, resulting in a starting current only 3–4 times that of direct starting, significantly reducing grid voltage drop and mechanical shock.
• Torque control: Built-in torque control algorithm prevents pump surge and water hammer, extending pipe life.
• Built-in bypass: Automatically switches to the bypass contactor during operation, reducing thyristor heating and achieving energy savings of ≥ 99%.
• Comprehensive protection: Over 10 protection functions, including overload, overvoltage, undervoltage, overtemperature, phase failure, stall, and reverse phase sequence.
• User-friendly interface: Detachable IP66 keypad with graphical display in 17 languages, supporting parameter copying and door installation.
• Flexible communication: Standard Modbus RTU, with optional support for mainstream buses such as Profibus, DeviceNet, and Ethernet/IP.
• Efficient installation: Suitable for both DIN rail and screw mounting, with a gapless design that allows for vertical alignment, saving 30% of cabinet space.

Technical Parameters
Rated operating current: 470 A Internal Delta Current: Up to 640 A
Rated Insulation Voltage: 690 V
Control Circuit Voltage: 100–250 V AC 50/60 Hz
Operating Temperature: –25°C … +60°C (without derating)
Protection Rating: IP20 (main unit), IP66 (keyboard)
Certifications: CE, UL, cUL, CCC, EAC, SEMKO, CSA

Typical Applications
• Municipal Water Supply: Soft-start centrifugal pumps to eliminate water hammer and reduce pipe network maintenance costs
• HVAC: Smooth fan start, reduced belt wear, and improved system stability
• Petrochemical: Soft-start compressors to prevent PLC malfunctions caused by grid voltage drops
• Mining: Soft-start conveyor belts to reduce mechanical shock and maintenance downtime

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