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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.
What is the risk of reverse feeding Compact NSX HB1/HB2 MCCB?
For "HB" Compact NSX MCCBs, it is mandatory to supply the circuit breaker via its upstream. The high breaking performance cannot be reached if the "HB" NSX MCCB was reverse fed because we risk arcing between poles. Thus, restrict reverse feeding for this MCCB as illustrated in the attached Compact NSX 2016 catalogue extract.
Released for:Schneider Electric Egypt and North East Africa
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