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abb softstarter PSTX1250-690-70 pstx (690v) range 1250 amp
ABB PSTX1250-690-70 advanced softstarter with 1250 A operational current and 208–690 V AC operating voltage for industrial motor control and protection applications.
£19,315.15
Why Choose the ABB PSTX1250-690-70 Softstarter?
The ABB PSTX1250-690-70 is a premium heavy-duty industrial softstarter engineered to deliver smooth motor starting, stopping and advanced protection for very large three-phase AC motors in demanding industrial environments. As part of the intelligent ABB PSTX softstarter series, this model combines advanced motor control, integrated bypass functionality and extensive diagnostics within a highly robust and energy-efficient platform.
Designed for industrial automation and critical process applications, the PSTX1250-690-70 significantly reduces electrical inrush current while minimising mechanical stress on motors and driven equipment. Its intelligent torque control and advanced protection functions improve operational reliability while extending the service life of pumps, compressors, conveyors and heavy industrial machinery.
With a rated operational current of 1250 A and support for 208–690 V AC three-phase systems, this ABB softstarter is ideal for extremely large industrial motors and mission-critical heavy-duty applications. The detachable full graphic keypad, integrated Modbus RTU communication and support for optional Anybus fieldbus modules simplify commissioning, diagnostics and operational monitoring in modern industrial automation systems.
Key Advantages
- Advanced soft starting and stopping control for industrial motors.
- 1250 A operational current suitable for heavy-duty industrial applications.
- 208–690 V AC three-phase compatibility.
- Integrated built-in bypass improves efficiency and reduces heat losses.
- Comprehensive built-in motor protection and diagnostics.
- Integrated Modbus RTU with optional industrial communication support.
- Heavy-duty panel-mounted design for industrial automation systems.
Key Features
- ABB PSTX advanced softstarter series.
- 1250 A rated operational current.
- 208–690 V AC operating voltage range.
- Integrated electronic overload protection.
- Built-in bypass for reduced energy consumption.
- Voltage ramp and torque ramp starting 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, motor heating, emergency mode and pump cleaning.
Advanced Motor Starting for 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 operational reliability, minimises maintenance requirements and extends the service life of motors and driven systems.
The PSTX1250-690-70 includes advanced protection and monitoring features such as overload protection, current limiting, braking, motor heating, diagnostics, sequence start, stand-still brake and emergency/fire pump mode. Integrated communication capabilities allow seamless integration into PLC, SCADA and industrial automation systems for improved monitoring and process control.
Typical Applications
- Industrial pumps and water treatment systems.
- Compressors and process equipment.
- Conveyor systems and bulk material handling.
- Industrial fans and ventilation systems.
- Mining and heavy industrial applications.
- Large process plants and infrastructure projects.
Technical Specifications
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| Motor Protection | Yes | |
|---|---|---|
| Coil / Supply Voltage | 110–240 V AC | |
| Voltage | 230 V, 400 V, 480 V, 600 V, 690 V | |
| Power | 710 kW | |
| Current | 1250 A | |
| Phase | Three Phase | |
| IP Rating | IP00 | |
| Series | PSTX Softstarters | |
| Product ID | 1SFA898221R7000 | |
| Product type | Softstarter | |
| Rated operational current | 1250 A | |
| Operational voltage | 208–690 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 | 710 kW | |
| Inline motor power at 500 V | 880 kW | |
| Inline motor power at 690 V | 1200 kW | |
| Inside delta operational current | approx. 2165 A | |
| Protection rating | IP00 | |
| Mounting type | Panel mounting | |
| Dimensions (H × W × D) | approx. 800 × 600 × 616 mm packaged dimensions | |
| Weight | approx. 75.3 kg packaged weight | |
| HS Code | 85371091 | |
| Country of Manufacture | Sweden |
Frequently Asked Questions
What is the ABB PSTX1250-690-70 used for?
This softstarter is designed to control the starting and stopping of very large three-phase industrial motors while reducing electrical and mechanical stress.
What motor sizes can this softstarter support?
The PSTX1250-690-70 supports motors up to approximately 710 kW at 400 V, 880 kW at 500 V and 1200 kW at 690 V in inline connection.
Does the unit include communication functionality?
Yes. The unit includes integrated Modbus RTU communication and supports optional Anybus modules for major industrial communication protocols.
What protection features are included?
The PSTX series includes overload protection, current limiting, motor heating, diagnostics, braking, sequence start, emergency mode and pump cleaning functionality.
What applications commonly use the PSTX1250-690-70?
This softstarter is commonly used in pumps, compressors, conveyors, mining systems and heavy industrial motor applications.
Trusted by Industrial Engineers 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 industrial applications.
