Series
PSTX Softstarter
PSTX is ABB's high-end soft starter series with more complete functions, suitable for higher-demand pumps, fans, compressors, conveying equipment and process industry applications. Compared with PSE, PSTX usually provides richer control, protection, communication and application functions, so when purchasing, it cannot be a one-to-one replacement based only on current specifications.
PSTX full part numbers include series, current level and voltage/control related suffixes. The selection needs to be based on the rated current of the motor, starting time, number of starts per hour, main voltage, control voltage, bypass method and communications requirements, and confirm the protection and pump control functions required by the project.
| representative models | Series | application | |
|---|---|---|---|
| PSTX30-600-70 | 30A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX37-600-70 | 37A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX45-600-70 | 45A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX60-600-70 | 60A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX72-600-70 | 72A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX85-600-70 | 85A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX105-600-70 | 105A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX142-600-70 | 142A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX170-600-70 | 170A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX210-600-70 | 210A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX250-600-70 | 250A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX300-600-70 | 300A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX370-600-70 | 370A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX470-600-70 | 470A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX570-600-70 | 570A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX720-600-70 | 720A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX840-600-70 | 840A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX1050-600-70 | 1050A class | 208–600VAC | Advanced softstarter / embedded bypass |
| PSTX1250-600-70 | 1250A class | 208–600VAC | Advanced softstarter / embedded bypass |
The table shows verified representative models and key specifications. If your required model is not listed, send the complete ordering code for verification.
FAQ
Frequently Asked Questions
Which specifications matter most when selecting PSTX Softstarter?
Key specifications to verify are series, application. Match them against the equipment nameplate, drawing or original model, and retain every suffix, option and regional code in the complete ordering reference.
Why is the complete part number required when requesting a quote for PSTX Softstarter?
Models within PSTX Softstarter may differ in electrical ratings, construction, interfaces or accessories. For example, PSTX210-600-70, PSTX300-600-70, PSTX370-600-70 are distinct configurations and cannot be interchanged on the series name alone. Using the complete part number substantially reduces mismatch risk.
How should I confirm when PSTX Softstarter is used for spare parts of installed equipment?
For installed-base MRO involving PSTX Softstarter, provide the original part number, nameplate photo, equipment application and quantity. We first verify the existing model and critical specifications, then check whether the original remains available. If migration is required, mounting, electrical, communication and accessory differences are compared separately.
Request a Quote for PSTX Softstarter
Please provide the complete part number, quantity and destination country. For installed-base replacements, include the original model and nameplate details.
