This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Can we test the ZSI (Zone Selective Interlocking) between two or three NW Circuit breakers connected as upstream and downstream by using FFTK (Full Functional Test Kit) ?
Yes,it is possible to test the ZSI feature with the FFTK(33595). Please refer to the attached page from FFTK user manual .