Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ABB PSTM-500/18 thyristor, a replacement semiconductor component for ABB PSS and PST softstarters with a 690 V main circuit rating.
£2,158.27
The ABB 1SFA899011R1500 PSTM-500/18 is a genuine thyristor spare part designed for ABB 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 softstarter systems.
This thyristor is used as a power semiconductor component within ABB softstarters, controlling current flow during motor starting and helping provide smooth acceleration while reducing mechanical and electrical stress on connected equipment.
The ABB PSTM-500/18 is suitable for PSS250/430, PSS300/515, PST250 and PST300 softstarters and is designed for applications with a main circuit voltage rating of 690 V. It provides a reliable replacement solution for industrial softstarter maintenance and repair applications.
Thyristors are essential power semiconductor components within softstarters, regulating power delivery to motors during starting and stopping cycles. Reliable thyristor operation helps maintain controlled acceleration, reduce inrush current and protect mechanical drive systems.
The ABB PSTM-500/18 provides an original replacement solution for ABB PSS and PST softstarters, helping maintenance teams restore equipment reliability while retaining ABB system compatibility.
Tick the specs you need, then view products that match.
| Device Type | Accessory | |
|---|---|---|
| Manufacturer | ABB | |
| Series | PST Softstarter Spare Parts | |
| Model | PSTM-500/18 | |
| Product code | 1SFA899011R1500 | |
| Product type | Thyristor | |
| Accessory type | Softstarter spare part | |
| Compatible softstarters | ABB PSS250/430, PSS300/515, PST250 and PST300 | |
| Rated operational voltage | Main circuit 690 V | |
| Product width | 60 mm | |
| Product height | 115 mm | |
| Product depth | 52 mm | |
| Weight | 1.42 kg |
The ABB PSTM-500/18 is a replacement thyristor used in ABB PSS and PST softstarters to provide semiconductor switching for industrial motor starting applications.
The PSTM-500/18 is suitable for PSS250/430, PSS300/515, PST250 and PST300 softstarters.
The PSTM-500/18 has a main circuit voltage rating of 690 V.
Yes, the PSTM-500/18 is an original ABB thyristor spare part designed for compatible ABB softstarter systems.
Replacing a damaged thyristor helps restore reliable motor starting performance and maintain the operation of the ABB softstarter system.
ABB softstarter spare parts are widely used in industrial motor control applications where reliable maintenance, original component compatibility and dependable operation are required.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.