ABB PSTX170-600-70 Soft Starter | 600A, 200-690V, 400HP Specs

ABB PSTX170-600-70 soft starter specifications. 600A rated current, 200-690V AC, IP00, for heavy-duty motor control up to 400HP.

ABB PSTX170-600-70 Soft Starter

The ABB PSTX170-600-70 is a high-current, medium-voltage soft starter designed to control the acceleration and deceleration of three-phase AC induction motors. It reduces mechanical stress on motors and connected equipment, minimizes electrical inrush current, and extends equipment lifespan.

Key Features

• High Current Rating:​ Designed for controlling large industrial motors.

• Advanced Control:​ Provides smooth ramp-up and ramp-down, reducing mechanical shock.

• Built-in Protection:​ Includes motor overload, phase imbalance, and jam protection.

• Compact Design:​ Saves panel space compared to traditional starting methods.

Technical Specifications

Typical Applications

• Large centrifugal pumps and fans

• Conveyor belts and crushers

• Compressors

• Mixers and agitators

Critical Selection & Installation Notes

1. Enclosure Required:​ The PSTX170-600-70 is an IP00 open-type​ device. It must​ be installed inside a suitably rated industrial control panel or enclosure for protection.

2. Proper Sizing is Crucial:​ The soft starter must be sized based on the motor's Full Load Amps (FLA)​ and the specific starting torque requirements of the application. The 600A rating is the maximum continuous current for the device.

3. Bypass Contactor:​ For continuous duty applications, an external bypass contactor is typically recommended to carry the run current after startup, improving efficiency and soft starter life.

4. Heat Dissipation:​ Ensure adequate airflow and heat sinking within the enclosure as per the installation manual.

Note: Specifications are based on the standard PSTX series data. For final selection, thermal derating, network configuration, and detailed installation requirements, consult the official ABB PSTX Softstarters Selection and Application Guide.