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.
Mechanical interlocking system must be added to electrical interlocking to protect against electrical malfunctions or incorrect manual operations. Electrical interlocking is used with a mechanical interlocking system. Morover, the relays controlling the closing order to the “N” and “R” circuit breakers must be mechanically and/or electrically interlocked to prevent them from giving simultaneous closing commands.
Released for:Schneider Electric Egypt and North East Africa
