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On a system without an IFE or IFM, will an ERMS switch still work?
Issue:
The ERMS switch is not working correctly

Product Line:
Molded Case Circuit Breakers

Resolution:
Yes, it can work on a system without an IFE or IFM. However, when there is no IFE or IFM in the system, the remote access parameters on the trip unit must be set correctly. The access permit must be set to yes, and the access code must be set to 0000.

To change these, the trip unit door that covers the adjustment dials must be open. To change them, you would hit the wrench button on the trip unit, arrow down to Com setup, hit the enter button, arrow down to Remote access, hit the enter button, highlight Access Permit, hit enter, and hit an arrow button to change it to YES, then hit the enter button. By default, the access code would be 0000 already, but if it has been changed, you would then arrow down to highlight it, hit enter, go through each number and arrow it to 0, then hit enter, hit the wrench button again to back out of the menu, and select yes to save the settings.

Also, without an IFE, the default setting of 2x for the instantaneous with ERMS engaged cannot be changed.

Schneider Electric USA

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