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abb softstarter PSTX85-690-70 pstx (690v) range 85 amp
ABB PSTX85-690-70 advanced softstarter with 85 A operational current and 208–690 V AC operating voltage for industrial motor control and protection applications.
£2,396.29
Why Choose the ABB PSTX85-690-70 Softstarter?
The ABB PSTX85-690-70 is an advanced industrial softstarter designed to deliver smooth motor starting, stopping and comprehensive protection for 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 compact and highly efficient platform.
Engineered for industrial automation and process applications, the PSTX85-690-70 reduces electrical inrush current while minimising mechanical stress on motors and driven equipment. Its intelligent torque control and integrated protection functions improve operational reliability while extending the service life of pumps, compressors, conveyors and process machinery.
With a rated operational current of 85 A and support for 208–690 V AC three-phase systems, this ABB softstarter is ideal for medium and large industrial motors. The detachable full graphic keypad, integrated Modbus RTU communication and optional Anybus fieldbus modules simplify commissioning, diagnostics and operational monitoring in modern industrial automation environments.
Key Advantages
- Advanced soft starting and stopping control for industrial motors.
- 85 A operational current suitable for demanding 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.
- Compact panel-mounted design for industrial automation systems.
Key Features
- ABB PSTX advanced softstarter series.
- 85 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 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 PSTX85-690-70 includes advanced protection and monitoring features such as overload protection, current limiting, braking, motor heating, diagnostics and emergency 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 material handling.
- Industrial fans and ventilation systems.
- OEM machinery and automation systems.
- General industrial motor control applications.
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 | 45 kW | |
| Current | 85 A | |
| Phase | Three Phase | |
| IP Rating | IP00 | |
| Series | PSTX Softstarters | |
| Product ID | 1SFA898208R7000 | |
| Product type | Softstarter | |
| Rated operational current | 85 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 | 45 kW | |
| Inline motor power at 500 V | 55 kW | |
| Inline motor power at 690 V | 75 kW | |
| Inside delta motor power at 400 V | 75 kW | |
| Inside delta operational current | 147 A | |
| Protection rating | IP00 | |
| Mounting type | Panel / wall mounting | |
| Dimensions (H × W × D) | approx. 314 × 150 × 198 mm | |
| Weight | approx. 4.7 kg | |
| HS Code | 85371098 | |
| Country of Manufacture | Sweden |
Frequently Asked Questions
What is the ABB PSTX85-690-70 used for?
This softstarter is designed to control the starting and stopping of three-phase industrial motors while reducing electrical and mechanical stress.
What motor sizes can this softstarter support?
The PSTX85-690-70 supports motors up to approximately 45 kW at 400 V, 55 kW at 500 V and 75 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 and emergency mode functionality.
What applications commonly use the PSTX85-690-70?
This softstarter is commonly used in pumps, compressors, conveyors, fans and general 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.
