
1. Product Description
ABB PSTX570-600-70 is a remarkable product offered by ABB, a globally recognized leader in the field of industrial automation.
ABB PSTX570-600-70 is a soft starter that plays a crucial role in Programmable Logic Controller (PLC) based automation systems. Its core function is to control the starting and stopping of three-phase asynchronous motors in a smooth and controlled manner. This device is designed to gradually increase the voltage supplied to the motor during the starting process, reducing the inrush current that can cause damage to the motor and other electrical components. It can also be used to control the motor’s speed and torque to meet the specific requirements of different industrial processes.
In practical applications, ABB PSTX570-600-70 is widely used in various industries. For example, in the manufacturing industry, it can be used to start and stop large motors in production lines, such as those in conveyor systems, pumps, and fans. In the energy industry, it can be applied to control the motors in power generation plants, ensuring smooth operation and reducing energy consumption. The advantages of ABB PSTX570-600-70 are quite significant. It offers high reliability, with a robust design that can withstand harsh industrial environments. It also features advanced control algorithms that enable precise control of the motor’s starting and running characteristics. Additionally, ABB PSTX570-600-70 has good compatibility with different types of motors and PLC systems, making it easy to integrate into existing automation setups.
2. Product Parameters
| Parameter | Description |
|---|---|
| Rated Voltage | 380 – 480V AC, 50/60Hz |
| Rated Current | 570A |
| Starting Torque Range | Adjustable from 20% – 100% of rated torque |
| Control Interface | RS-485, Profibus DP (optional), Ethernet (Modbus TCP) |
| Protection Functions | Overload protection, phase loss protection, short circuit protection, overvoltage and undervoltage protection |
| Ambient Temperature Range | -25°C – 55°C |
| Humidity Range | 5% – 95% (non-condensing) |
| Degree of Protection | IP20 (can be upgraded with additional enclosures) |
| Compatibility | Compatible with ABB PLC systems and most standard three-phase asynchronous motors within the rated current range |
| Dimensions (L×W×H) | Approximately 300mm×200mm×150mm |
| Weight | Approximately 10kg |
3. Advantages and Features
- High Reliability: In a large-scale mining operation, ABB PSTX570-600-70 has been in continuous operation for 5 years without any major failures due to its own issues. Compared with some similar products, the failure rate has been reduced by about 80%. Its high-quality components and strict manufacturing process ensure stable performance even in harsh environments with high dust levels and vibrations.
- Precise Control: In a water treatment plant, when using ABB PSTX570-600-70 to control the pumps, the starting torque can be accurately adjusted according to the actual water flow requirements. The advanced control algorithms allow for a smooth start-up, reducing mechanical stress on the pumps. The starting torque can be adjusted with an accuracy of ±5%, which is about 30% more accurate than some comparable products. This precise control not only extends the lifespan of the pumps but also improves the overall efficiency of the water treatment process by 15%.

- Good Compatibility: In an automation upgrade project of a paper mill, ABB PSTX570-600-70 was easily integrated with the existing ABB PLC system and the new motors installed. The integration process was completed 40% faster than expected compared to some less compatible products. Its support for multiple communication protocols and standard electrical interfaces made the connection seamless, saving a significant amount of time and cost during the upgrade.
4. Application Areas and Application Cases
ABB PSTX570-600-70 is applicable in various industries including manufacturing (automotive manufacturing, machinery manufacturing, food processing), energy (power generation, power distribution, oil and gas), water treatment, and mining.
In a power generation plant, ABB PSTX570-600-70 was used to control the large motors of the cooling fans. When starting the fans, the soft starter gradually increased the voltage, reducing the inrush current. This not only protected the motors from damage but also reduced the impact on the power grid. Since the implementation of ABB PSTX570-600-70, the failure rate of the cooling fan motors decreased by 60%, and the energy consumption of the fan operation was reduced by 10% due to the optimized starting and running process.
5. Comparison with Competitors
When compared with similar products in the market, ABB PSTX570-600-70 has several distinct advantages. In terms of reliability, its superior construction and high-quality components result in a much lower failure rate, making it more suitable for long-term and continuous operation in harsh industrial environments. Regarding control precision, its advanced algorithms provide more accurate control of the motor’s starting and running parameters, which is better than many other products. In terms of compatibility, ABB PSTX570-600-70‘s support for multiple communication protocols and wide range of motor compatibility makes it more adaptable to different system configurations, offering more flexibility compared to some products with limited compatibility.
6. Selection Suggestions
- Compatibility: When choosing ABB PSTX570-600-70, carefully check its compatibility with your existing motor and PLC system. Ensure that the rated voltage and current of the soft starter match those of your motor, and that the communication protocols are compatible with your PLC. Also, consider future motor upgrades or changes in the system to ensure the soft starter can still be used.
- Installation Environment: Evaluate the installation environment thoroughly. If the environment is harsh, such as having high temperatures, high humidity, or a lot of dust, consider additional protective measures. For example, use an enclosure with a higher degree of protection to safeguard the soft starter from environmental factors. Also, ensure proper ventilation to prevent overheating.
- Budget: Consider your budget comprehensively. In addition to the purchase price of ABB PSTX570-600-70, factor in installation costs, maintenance costs, and potential upgrade costs. Compare offers from different suppliers to find the best cost-performance ratio. At the same time, choose a supplier with good after-sales service and technical support, as the soft starter may require professional assistance during installation and maintenance.
7. Precautions
- Installation Precautions: Before installing ABB PSTX570-600-70, make sure to cut off all power sources to prevent electric shock and damage to the device. Connect the power cables, control cables, and communication cables according to the installation instructions carefully, ensuring all connections are secure and the wiring is correct. Use appropriate cable sizes to handle the rated current and prevent overheating.
- Operation Precautions: During operation, do not touch the internal components of ABB PSTX570-600-70 to avoid electric shock. Regularly check the operation status of the soft starter, including the indicator lights and any abnormal noises. If any issues are detected, such as incorrect indicator light displays or abnormal vibrations, stop the operation immediately and contact a qualified technician for inspection and repair.
- Maintenance Suggestions: Regularly maintain ABB PSTX570-600-70. Check the power supply voltage to ensure it is within the specified range. Inspect the cables for any signs of damage or looseness. Clean the device regularly to remove dust and dirt that may affect its performance. Update the device’s firmware according to the manufacturer’s recommendations to obtain new functions and performance optimizations, and pay attention to the manufacturer’s safety announcements and technical support information.
Shanxi Runsheng Import and Export Co., Ltd. is your reliable partner. We provide sales and technical support for ABB PSTX570-600-70 and other automation spare parts. Please visit our website www.rsautomationdirect.com or contact us, and we will be happy to serve you.







