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.

Part-number Structure & Selection Notes
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 modelsSeriesapplication
PSTX30-600-7030A class208–600VACAdvanced softstarter / embedded bypass
PSTX37-600-7037A class208–600VACAdvanced softstarter / embedded bypass
PSTX45-600-7045A class208–600VACAdvanced softstarter / embedded bypass
PSTX60-600-7060A class208–600VACAdvanced softstarter / embedded bypass
PSTX72-600-7072A class208–600VACAdvanced softstarter / embedded bypass
PSTX85-600-7085A class208–600VACAdvanced softstarter / embedded bypass
PSTX105-600-70105A class208–600VACAdvanced softstarter / embedded bypass
PSTX142-600-70142A class208–600VACAdvanced softstarter / embedded bypass
PSTX170-600-70170A class208–600VACAdvanced softstarter / embedded bypass
PSTX210-600-70210A class208–600VACAdvanced softstarter / embedded bypass
PSTX250-600-70250A class208–600VACAdvanced softstarter / embedded bypass
PSTX300-600-70300A class208–600VACAdvanced softstarter / embedded bypass
PSTX370-600-70370A class208–600VACAdvanced softstarter / embedded bypass
PSTX470-600-70470A class208–600VACAdvanced softstarter / embedded bypass
PSTX570-600-70570A class208–600VACAdvanced softstarter / embedded bypass
PSTX720-600-70720A class208–600VACAdvanced softstarter / embedded bypass
PSTX840-600-70840A class208–600VACAdvanced softstarter / embedded bypass
PSTX1050-600-701050A class208–600VACAdvanced softstarter / embedded bypass
PSTX1250-600-701250A class208–600VACAdvanced 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.

Send an RFQ
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