abb softstarter PSTX720-600-70 pstx (600v) range 720 amp

Why Choose the ABB PSTX720-600-70 Softstarter?

The ABB PSTX720-600-70 is a high-capacity industrial softstarter designed for advanced motor starting, stopping and protection in demanding heavy-duty applications. As part of the intelligent ABB PSTX softstarter range, it provides reliable control for large three-phase motors while reducing electrical stress, minimising mechanical wear and improving operational efficiency.

Built for critical industrial processes, the PSTX720-600-70 combines advanced torque control, integrated bypass technology and comprehensive motor protection functions within a robust industrial platform. The unit helps extend equipment lifespan, improve process reliability and simplify integration into modern automation systems.

With a rated operational current of 720 A and support for 208–600 V AC three-phase power systems, this ABB softstarter is ideal for large pumps, compressors, conveyors, fans and heavy process machinery. Its detachable full graphic display and flexible communication capabilities provide easy commissioning, diagnostics and operational monitoring in industrial environments.

Key Advantages

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

Key Features

• ABB PSTX advanced softstarter series.
• 720 A rated operational current.
• 208–600 V AC operating voltage range.
• Integrated electronic overload protection.
• Built-in bypass for reduced power consumption.
• Voltage ramp and torque ramp starting methods.
• Detachable graphic keypad with IP66 and Type 4X rating.
• Integrated Modbus RTU communication interface.
• Support for optional Anybus communication modules.
• Functions including kickstart, braking, sequence start and emergency mode.

Technical Specifications

• Manufacturer: ABB
• Series: PSTX Softstarters
• Model: PSTX720-600-70
• Product ID: 1SFA898118R7000
• Product type: Softstarter
• Rated operational current: 720 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: 400 kW
• Inline motor power at 500 V: 500 kW
• Inside delta motor power at 400 V: 710 kW
• Inside delta operational current: 1247 A
• Protection rating: IP00
• Mounting type: Panel mounting
• Dimensions (H × W × D): approx. 493 × 435 × 369 mm
• Weight: approx. 46.5 kg

Advanced Soft Starting for Heavy Industrial Applications

The ABB PSTX series uses intelligent voltage and torque regulation to deliver smooth motor acceleration and deceleration while reducing inrush current and mechanical stress. This improves equipment reliability, reduces maintenance requirements and enhances process stability in demanding industrial operations.

The PSTX720-600-70 includes advanced protection and monitoring functions such as current limiting, overload protection, motor heating, braking and diagnostics. Integrated communication support allows seamless integration with industrial PLC and SCADA systems for improved process control and operational visibility.

Typical Applications

• Industrial pumps and water treatment systems.
• Compressors and process control equipment.
• Heavy-duty conveyor systems.
• Fans and ventilation equipment.
• Mining and quarrying operations.
• Large industrial automation and OEM systems.

Trusted by Heavy Industry Worldwide

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