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abb softstarter PSTX142-690-70 pstx (690v) range 143 amp
ABB PSTX142-690-70 softstarter, a 142 A three-phase motor starter with 208–690 V AC operation, integrated bypass and advanced motor protection functions.
£3,024.96
Why Choose the ABB PSTX142-690-70 Softstarter?
The ABB 1SFA898210R7000 PSTX142-690-70 is an advanced three-phase softstarter designed to provide smooth acceleration and deceleration control for medium to large industrial motors. As part of the ABB PSTX softstarter series, it combines intelligent motor control, integrated bypass functionality, advanced protection and communication features for demanding industrial automation applications.
This softstarter reduces mechanical stress during motor starting by controlling voltage and torque ramps, helping improve equipment reliability and operational efficiency. The integrated bypass contactor simplifies installation and reduces power losses during normal motor operation.
With a rated operational current of 142 A and a main circuit voltage range of 208–690 V AC, the ABB PSTX142-690-70 is suitable for larger three-phase motor applications including pumps, fans, compressors, conveyors and industrial machinery.
Key Advantages
- Advanced softstarter for three-phase industrial motors.
- 142 A rated operational current for medium to large motor applications.
- 208–690 V AC operating voltage range for flexible installation.
- Integrated bypass for simplified installation and improved energy efficiency.
- Built-in electronic motor protection and diagnostic functions.
- Flexible communication options including Modbus RTU and optional fieldbus modules.
Key Features
- ABB PSTX142-690-70 softstarter.
- Product code: 1SFA898210R7000.
- Three-phase controlled soft start and soft stop.
- 142 A in-line rated operational current.
- 208–690 V AC main circuit voltage.
- 100–250 V AC control supply voltage.
- Built-in bypass contactor.
- Detachable graphic display with IP66 protection.
- Integrated electronic overload protection.
- Modbus RTU communication with optional fieldbus modules.
Advanced Motor Starting and Protection
Softstarters such as the ABB PSTX142-690-70 control motor starting conditions by gradually increasing voltage or torque, reducing mechanical shock and electrical stress during acceleration. This helps extend equipment service life and improves process reliability.
The PSTX series combines motor starting control with advanced monitoring, protection and communication functions. Its integrated features support efficient operation in modern industrial automation systems.
Typical Applications
- Industrial pumps and water systems.
- Fans and ventilation equipment.
- Compressors.
- Conveyor systems.
- Material handling equipment.
- Industrial machinery and automation systems.
Technical Specifications
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| Motor Protection | Yes | |
|---|---|---|
| Voltage | 230 V, 400 V, 480 V, 600 V, 690 V | |
| Phase | Three Phase | |
| Coil / Supply Voltage | 110–240 V AC | |
| Current | 142 A | |
| Manufacturer | ABB | |
| Series | PSTX Softstarters | |
| Model | PSTX142-690-70 | |
| Product code | 1SFA898210R7000 | |
| Product type | Softstarter | |
| Rated operational voltage | 208–690 V AC | |
| Rated operational current | 142 A | |
| Rated control supply voltage | 100–250 V AC | |
| Rated control circuit voltage | 24 V DC | |
| Frequency | 50 / 60 Hz | |
| Rated motor power at 400 V AC (in-line) | 75 kW | |
| Rated motor power at 690 V AC (in-line) | 132 kW | |
| Inside delta current rating | 245 A | |
| Starting capacity | 4 × Ie for 10 s | |
| Ramp time | 1–120 s | |
| Communication | Modbus RTU and optional fieldbus modules | |
| Protection functions | Electronic overload, phase loss, voltage imbalance, locked rotor and motor protection functions | |
| Mounting type | Surface / wall mounting | |
| Protection rating | IP10 | |
| Dimensions (H × W × D) | 377 × 199 × 283 mm | |
| Weight | approx. 7 kg |
Frequently Asked Questions
What is the ABB PSTX142-690-70 used for?
The ABB PSTX142-690-70 is a softstarter used to control the acceleration and deceleration of three-phase industrial motors while reducing mechanical and electrical stress.
What motor current does the PSTX142-690-70 support?
The softstarter supports a rated operational current of 142 A for in-line motor connections.
What supply voltage does the ABB PSTX142-690-70 support?
The PSTX142-690-70 operates with a main circuit voltage range of 208–690 V AC.
Does the PSTX142-690-70 include a bypass?
Yes, the PSTX142-690-70 includes an integrated bypass function to simplify installation and improve operating efficiency.
Where is the ABB PSTX142-690-70 typically installed?
The softstarter is typically installed in industrial control panels for applications such as pumps, fans, compressors and conveyors.
Trusted by Industrial Automation Engineers
ABB PSTX softstarters are widely used in industrial motor control applications where reliable starting performance, advanced protection and efficient operation are required.
