ABB PSTX570-600-70 Soft Starter

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1. Product Overview

The ABB PSTX570-600-70 is a high-performance Soft Starter designed to provide smooth starting and stopping of three-phase AC motors. By limiting the inrush current, the PSTX570-600-70 reduces mechanical stress and electrical network impact, enhancing system reliability and equipment lifespan. It offers multiple motor protection features, including overload, undervoltage, and jam protection, making it suitable for pumps, fans, compressors, and various industrial production lines.

2. Technical Specifications

• Model: PSTX570-600-70

• Product Type: Soft Starter

• Rated Voltage: 380–600 V AC

• Rated Current: 570 A

• Control Supply: 24 V DC / 110–240 V AC

• Max Starting Current Limit: ≤ 1.5 × In

• Starting Mode: Voltage-controlled soft start / controlled stop

• Operating Frequency: 50 / 60 Hz

• Protection Features: Overload, jam, undervoltage, phase loss, short-circuit

• Communication Interface: Optional Modbus RTU / Ethernet

• Operating Temperature: -20 ℃ to +60 ℃

• Degree of Protection: IP20

• Mounting: DIN rail or panel mount

• Dimensions (Approx.): H 380 mm × W 220 mm × D 200 mm

• Standards Compliance: CE, UL, IEC 60947-4-2

3. Advantages & Features

1. Smooth Start and Stop
   Limits inrush current to reduce mechanical stress and grid load.

2. High-Reliability Protection
   Integrated motor protection functions ensure safe operation.

3. Flexible Control Modes
   Supports voltage-controlled soft start and intelligent stop for different operating conditions.

4. Intelligent Communication Interfaces
   Optional Modbus RTU / Ethernet for remote monitoring and data acquisition.

5. Energy Saving and Longevity
   Reduces start-up energy consumption and mechanical wear, extending overall system life.

6. Industrial-Grade Design
   Vibration-resistant, heat-tolerant, and designed for long-term stable operation in harsh industrial environments.

4. Application Areas

The ABB PSTX570-600-70 Soft Starter is widely used in:

• Pumps and fan control systems

• Compressors and industrial production line motor start control

• Conveying equipment and automation machinery

• Metallurgy, mining, and petrochemical motor control

• Building and municipal facility motor management

• Energy and water treatment systems

5. Notes & Precautions

1. Ensure power is disconnected before installation to avoid electrical hazards.

2. Rated voltage and current must match the controlled motor to prevent damage.

3. Install in a dry, ventilated environment, avoiding dust, moisture, and corrosive gases.

4. Regularly inspect terminals and cooling channels to ensure proper heat dissipation and device stability.

5. Installation, commissioning, and maintenance should be performed by qualified electrical engineers.

6. Avoid long-term operation in strong electromagnetic interference environments; shielding may be required.