abb softstarter PSTX300-600-70 pstx (600v) range 300 amp

abb softstarter PSTX300-600-70 pstx (600v) range 300 amp

ABB PSTX300-600-70 advanced softstarter with 300 A rated current and 208–600 V AC three phase operation designed for large industrial motor starting and protection applications.

SKU: PSTX300-600-70Alt SKU: PSTX300-600-70MPN: 1SFA898114R7000
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List Price £5,168.25 ex VAT
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£3,359.36 35% OFF
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Manufacturer Lead Time Estimated Delivery 4 - 5 Days
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Why Choose the ABB PSTX300-600-70 Softstarter?

The ABB PSTX300-600-70 is an advanced softstarter designed for reliable starting and stopping control of large three-phase AC motors in demanding industrial applications. As part of the powerful ABB PSTX softstarter series, it provides smooth motor acceleration and deceleration while reducing mechanical stress, electrical wear and high starting currents.

This softstarter combines intelligent motor control with integrated protection, monitoring and communication functions to improve equipment reliability and operational efficiency. The PSTX series includes advanced features such as torque control, current limitation, electronic overload protection, built-in bypass and diagnostic functions for modern industrial automation systems.

With a rated operational current of 300 A and a 208–600 V AC three-phase motor voltage range, the PSTX300-600-70 is designed for large motor applications including pumps, fans, compressors, conveyors and heavy industrial machinery. It supports motor ratings up to 160 kW at 400 V in standard in-line connection and up to 257 kW at 400 V in inside delta connection.

Key Advantages

  • Advanced softstarter designed for heavy-duty industrial motor applications.
  • 300 A rated operational current for large three-phase motors.
  • 208–600 V AC three-phase motor voltage range for flexible installation.
  • Integrated bypass functionality improves energy efficiency during normal operation.
  • Built-in electronic overload protection and motor diagnostics.
  • Advanced communication and monitoring features for automation systems.

Key Features

  • ABB PSTX softstarter series.
  • 300 A rated operational current.
  • 208–600 V AC operational voltage range.
  • 100–250 V AC control supply voltage.
  • Soft start and soft stop using voltage ramp or torque ramp control.
  • Integrated bypass contactor function.
  • Built-in Modbus RTU communication.
  • Analogue output support including 0–10 V and 4–20 mA signals.
  • Detachable full graphic keypad with IP66 protection.
  • Integrated electronic overload protection and advanced diagnostics.

Reliable Motor Starting for Industrial Applications

Softstarters such as the ABB PSTX300-600-70 regulate motor voltage during acceleration and deceleration, allowing machinery to start smoothly while reducing mechanical shock and limiting electrical stress on motors and connected equipment.

The PSTX series is designed for industrial automation engineers and machine builders requiring dependable motor control. Its integrated protection features, communication capabilities and intelligent diagnostics support efficient operation in demanding production environments.

Typical Applications

  • Large industrial pumps and water handling systems.
  • Fans and ventilation equipment.
  • Compressors and heavy-duty machinery.
  • Conveyors and bulk material handling systems.
  • Mining, processing and production equipment.
  • OEM machinery and industrial automation systems.

Technical Specifications

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Motor Protection Yes
Voltage 230 V, 400 V, 480 V, 600 V
Phase Three Phase
Coil / Supply Voltage 110–240 V AC
Current 300 A
HS Code 85371091
Country of Manufacture Sweden
Manufacturer ABB
Series PSTX Softstarters
Model PSTX300-600-70
Part number 1SFA898114R7000
Product type Advanced softstarter
Rated operational current 300 A
Operational voltage 208–600 V AC
Input phases 3-phase
Control supply voltage 100–250 V AC
Rated control circuit voltage 24 V DC
Frequency 50 / 60 Hz
Rated operational power (in-line connection) 160 kW at 400 V
Rated operational power (inside delta connection) 257 kW at 400 V
Rated operational current (inside delta) 515 A
Protection rating IP00
Display protection rating IP66
Mounting type Panel mounting
Dimensions (H × W × D) approx. 470 × 258 × 279 mm
Weight approx. 15.5 kg

Frequently Asked Questions

What is the ABB PSTX300-600-70 used for?

This softstarter controls the starting and stopping of large three-phase AC motors, reducing mechanical stress and limiting starting current in industrial applications.

What current rating does the PSTX300-600-70 support?

The ABB PSTX300-600-70 has a rated operational current of 300 A.

What supply voltage does the softstarter require?

The PSTX300-600-70 operates with a 208–600 V AC three-phase motor supply and requires a 100–250 V AC control supply.

Does the PSTX300-600-70 include bypass functionality?

Yes, the softstarter includes an integrated bypass function to improve energy efficiency and reduce losses during normal motor operation.

Where is this softstarter typically installed?

The PSTX300-600-70 is typically installed inside electrical control panels for industrial motor control applications.

Trusted by Industrial Automation Engineers Worldwide

ABB PSTX softstarters are widely used in industrial applications to provide reliable motor starting, intelligent protection and efficient control of demanding motor-driven systems.