abb softstarter PSTX1050-600-70 pstx (600v) range 1050 amp

Why Choose the ABB PSTX1050-600-70 Softstarter?

The ABB PSTX1050-600-70 is a high-performance industrial softstarter designed for advanced motor starting, stopping and protection in demanding heavy-duty applications. As part of the intelligent ABB PSTX softstarter range, this unit delivers reliable control for large three-phase motors while reducing electrical stress, minimising mechanical wear and improving operational efficiency.

Built for critical industrial processes, the PSTX1050-600-70 combines advanced torque control, integrated bypass technology and comprehensive motor protection features within a robust industrial platform. Its intelligent control functions help improve process stability, reduce downtime and extend the service life of motors and driven equipment.

With a rated operational current of 1050 A and support for 208–600 V AC three-phase systems, this ABB softstarter is ideal for large pumps, compressors, conveyors, fans and process machinery. The detachable full graphic display, integrated communication capabilities and extensive diagnostics simplify commissioning and operational monitoring in industrial automation environments.

Key Advantages

• Advanced soft starting and stopping control for heavy industrial motors.
• 1050 A operational current suitable for demanding large-scale applications.
• 208–600 V AC three-phase compatibility.
• Integrated bypass contactor improves efficiency and reduces heat losses.
• Comprehensive built-in motor protection and diagnostics.
• Integrated Modbus RTU with optional industrial communication support.
• Advanced torque control and pump cleaning functionality.

Key Features

• ABB PSTX advanced softstarter series.
• 1050 A rated operational current.
• 208–600 V AC operating voltage range.
• Integrated electronic overload protection.
• Built-in bypass for reduced energy consumption.
• Voltage ramp and torque ramp start methods.
• Detachable IP66 / Type 4X graphic keypad.
• Integrated Modbus RTU communication interface.
• Support for Profinet, Profibus, Ethernet/IP, Modbus TCP and other protocols.
• Functions including kickstart, braking, sequence start, pump cleaning and emergency mode.

Technical Specifications

• Manufacturer: ABB
• Series: PSTX Softstarters
• Model: PSTX1050-600-70
• Product ID: 1SFA898120R7000
• Product type: Softstarter
• Rated operational current: 1050 A
• Operational voltage: 208–600 V AC
• Control supply voltage: 100–250 V AC
• Control circuit voltage: 24 V DC
• Frequency: 50 / 60 Hz
• Inline motor power at 400 V: 560 kW
• Inline motor power at 500 V: 730 kW
• Inside delta motor power at 400 V: 1000 kW
• Inside delta operational current: 1810 A
• Protection rating: IP00
• Mounting type: Panel mounting
• Dimensions (H × W × D): approx. 515 × 435 × 367 mm
• Weight: approx. 62.3 kg

Advanced Soft Starting for Critical Industrial Applications

The ABB PSTX series uses intelligent voltage and torque regulation to provide smooth motor acceleration and deceleration while reducing inrush current and mechanical stress. This improves process reliability, minimises maintenance requirements and extends the operational life of motors and driven systems.

The PSTX1050-600-70 includes advanced protection and monitoring features such as overload protection, current limiting, motor heating, braking and diagnostics. Integrated communication capabilities allow seamless integration into PLC, SCADA and industrial automation systems for enhanced process visibility and control.

Typical Applications

• Industrial pumps and water treatment systems.
• Large compressors and process equipment.
• Heavy-duty conveyor systems.
• Industrial fans and ventilation systems.
• Mining and quarrying operations.
• Large-scale OEM automation systems.

Trusted by Heavy Industry Worldwide

ABB PSTX softstarters are trusted globally by industrial engineers and automation specialists for delivering advanced motor control, dependable operation and reduced maintenance in demanding process applications.