Frequently asked questions
Why does the load side of the shorting contactor connect to A2, B2 and C2 on the ATS48 soft start?
FA246738
22 October 2021
Issue:Shorting contactor wiring
Product Line:
ATS48
Environment:
All models and serial numbers
Cause:
None
Resolution:
The A2, B2 and C2 terminals on the soft start provide a current path through internal current transformers. This provides overload protection when the shorting contactor is activated.
Refer to page 81 in the ATS48 Installation Guide for a wiring diagram.