{"searchBar":{"inputPlaceholder":"Search by keyword or ask a question","searchBtn":"Search","error":"Please enter a keyword to search"}}
{}

Welcome to the Schneider Electric Website

Welcome to our website.
 

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais
{"support":{"yesButton":"Yes","noButton":"No","feedback":{"title":"What can we do to improve?"},"submitButton":"Submit","successMessage":"Thank you for your feedback","title":"Was this helpful?","feedbackPercentLabel":"of people found this helpful","captcha":{"error":"Please tick the box"}}}
Search FAQs

Why does my ATS48 Soft Starter show PHF fault when stopping the motor?

Issue:
ATS48 Soft Starter shows PHF fault when stopping the motor.

Product Line:
ATS48 soft starters

Environment:
All models, All serial numbers

Cause:
Information unavailable in current literature.

Resolution:
PHF is caused by too great of an imbalance in the current draw of the output phases.  If one phase is pulling considerably more or less current than the other two, PHF can occur.   PHF can also occur if one or more output phases are pulling no current (open phase).