Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB PSTX570-600-70 |
| Manufacturer | ABB |
| Product Category | Heavy Duty Soft Starter |
| Rated Current | 570A |
| Voltage Range | 200-690V AC (50/60Hz) |
| Power Rating | 250kW @ 400V, 450kW @ 690V |
| Starting Current | Adjustable 200-600% of FLC |
| Stopping Modes | Ramp, Freewheel, Braking |
| Protection Features | Overload, Phase Loss, Overcurrent, Overvoltage |
| Cooling Method | Natural convection/forced air |
| Enclosure Rating | IP00 (IP20 with optional kit) |
| Control Voltage | 24-240V AC/DC |
| Certifications | UL, CE, cULus, IEC 60947-4-2 |
Product Introduction
The ABB PSTX570-600-70 represents ABB’s high-performance soft starter solution for demanding motor control applications. Designed for three-phase asynchronous motors, this heavy-duty unit provides smooth acceleration and deceleration, significantly reducing mechanical stress on driven equipment and electrical stress on power systems.
As part of ABB’s premium PSTX series, the ABB PSTX570-600-70 combines advanced thyristor technology with intelligent control algorithms to deliver precise torque control across its entire operating range. The unit’s robust construction ensures reliable operation in harsh industrial environments, from mining operations to water treatment plants.
With its 570A current rating and support for voltages up to 690V, the ABB PSTX570-600-70 is particularly suited for large pumps, fans, compressors, and conveyor systems where controlled starting is critical for operational efficiency and equipment longevity.
Core Advantages and Technical Highlights
Precision Motor Control:
The ABB PSTX570-600-70 features adaptive torque control that automatically adjusts to load conditions, providing optimal acceleration characteristics regardless of mechanical variations.
Energy Efficient Operation:
Patented algorithms minimize current draw during start-up, reducing peak demand charges by up to 50% compared to direct-on-line starting.
Advanced Protection Suite:
Comprehensive motor and system protection includes:
Thermal overload protection with motor memory function
Phase imbalance detection
Underload supervision
Jam protection
Power factor correction monitoring
Flexible Configuration:
Multiple control options including:
3-wire and 2-wire control
Local and remote operation modes
Analog (4-20mA/0-10V) and digital inputs
Modbus RTU communication protocol
ABB PSTX570-600-70
Rugged Construction:
Heavy-duty thyristors with integrated snubber circuits and industrial-grade heat sinks ensure reliable operation in ambient temperatures up to 50°C without derating.
Diagnostic Capabilities:
Built-in LCD display provides real-time monitoring of:
Motor current (all phases)
Voltage levels
Power factor
Thermal capacity used
Event log with time stamping
Typical Application Scenarios
Water/Wastewater Treatment:
Gentle starting of large centrifugal pumps (up to 500HP) to prevent water hammer effects in pipeline systems.
Mining Operations:
Controlled acceleration of conveyor belt systems carrying heavy mineral loads, reducing belt slippage and mechanical wear.
HVAC Systems:
Smooth ramp-up of large cooling tower fans in commercial buildings, eliminating current surges during start-up.
Oil & Gas:
Reliable starting of offshore platform pumps and compressors where electrical system stability is critical.
Cement Production:
Gradual acceleration of large ball mill motors to prevent gear damage and reduce peak power demand.
Related Model Recommendations
ABB PSTX370-600-70 – 370A version for mid-range applications
ABB PSTX720-600-70 – 720A version for larger motors
ABB PSE170-600-70 – Economy series soft starter
ABB ACS880-01 – Drive alternative for variable speed needs
ABB MS116 – Motor protection circuit breaker
ABB CM-ENS – Ethernet network adapter
ABB CP-S – Bypass contactor kit
Installation, Commissioning and Maintenance
Installation Guidelines:
Mount the ABB PSTX570-600-70 vertically with minimum 100mm clearance on all sides for proper ventilation. Use copper conductors rated for at least 600A. Ensure proper grounding per NEC/IEC standards.
Commissioning:
Use the intuitive LCD interface to:
Set motor nameplate parameters
Configure acceleration/deceleration times
Program protection settings
Test start/stop sequences
Verify communication settings
Maintenance:
Quarterly inspection of power terminals
Annual thermal imaging of thyristor modules
Biannual cleaning of cooling fins
Firmware updates via USB port
Replacement of cooling fans after 50,000 hours
Service and Guarantee Commitment
ABB provides a 24-month warranty for the PSTX570-600-70, backed by:
Global 24/7 technical support
On-site start-up assistance
Repair and exchange program
Preventive maintenance contracts
Training programs for operators
