The ABB 1SFA899009R1280 PSTP-280/18 is a genuine thyristor spare part designed for ABB PSTB softstarters, providing reliable semiconductor switching performance for industrial motor starting applications. As an original ABB replacement component, it is designed to maintain the performance and reliability of compatible PSTB softstarter systems.
This thyristor module is used within ABB PSTB softstarters to control motor starting current and provide smooth acceleration by regulating power delivery to the motor. Its robust construction supports dependable operation in demanding industrial environments where reliable motor control is essential.
The ABB PSTP-280/18 is suitable for PSTB370 softstarters and is designed for systems with a rated main voltage of 690 V AC. It is supplied as an individual thyristor replacement component for softstarter servicing and maintenance applications.
Key Advantages
Original ABB thyristor replacement component for PSTB softstarters.
Designed for reliable semiconductor switching in motor starting applications.
Compatible with ABB PSTB370 softstarter systems.
Helps restore softstarter performance during maintenance and repair.
Compact design for straightforward replacement installation.
Suitable for industrial motor control environments.
Key Features
ABB PSTP-280/18 thyristor.
Product code: 1SFA899009R1280.
Spare part for ABB PSTB softstarters.
Compatible with PSTB370 softstarters.
690 V AC softstarter application rating.
Designed for industrial motor starting systems.
Reliable Semiconductor Switching for Softstarter Systems
Thyristors are essential power semiconductor components within softstarters, controlling the voltage supplied to motors during starting and stopping cycles. Reliable thyristor performance helps reduce mechanical stress, limit starting current and improve motor system reliability.
The ABB PSTP-280/18 provides an original replacement solution for ABB PSTB370 softstarters, helping maintenance teams restore equipment operation while retaining ABB system compatibility.
Typical Applications
ABB PSTB370 softstarter servicing.
Industrial motor control systems.
Pumps and process equipment.
Fans and ventilation systems.
Compressors.
Industrial automation installations.
Technical Specifications
Manufacturer
ABB
Series
PSTB Softstarter Spare Parts
Model
PSTP-280/18
Product code
1SFA899009R1280
Product type
Thyristor
Accessory type
Softstarter spare part
Compatible softstarter
ABB PSTB370
Main voltage rating
690 V AC
Dimensions (W × H × D)
54 × 14 × 47 mm
Weight
approx. 0.11 kg
Frequently Asked Questions
What is the ABB PSTP-280/18 used for?
The ABB PSTP-280/18 is a replacement thyristor used in ABB PSTB370 softstarters to provide semiconductor switching for industrial motor starting applications.
Which ABB softstarter is compatible with the PSTP-280/18?
The PSTP-280/18 is designed for use with the ABB PSTB370 softstarter.
What voltage rating does the ABB PSTP-280/18 support?
The PSTP-280/18 is designed for ABB PSTB applications with a main voltage rating of 690 V AC.
Is the PSTP-280/18 an original ABB spare part?
Yes, the PSTP-280/18 is an original ABB thyristor spare part designed for compatible ABB softstarter systems.
Why replace a thyristor in a softstarter?
Replacing a damaged thyristor helps restore reliable motor starting performance and maintain the operation of the ABB softstarter system.
Trusted by Industrial Automation Engineers
ABB softstarter spare parts are widely used in industrial motor control applications where reliable maintenance, original component compatibility and dependable operation are required.
Manufacturer
ABB
Series
PSTB Softstarter Spare Parts
Model
PSTP-280/18
Product code
1SFA899009R1280
Product type
Thyristor
Accessory type
Softstarter spare part
Compatible softstarter
ABB PSTB370
Main voltage rating
690 V AC
Dimensions (W × H × D)
54 × 14 × 47 mm
Weight
approx. 0.11 kg
No documents available for this product.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...