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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.

How to measure the contact wear of circuit breakers contacts?

The wear of contacts is calculated as a function of the current cut by the control Unit at the moment of opening the circuit-breaker. The characteristics that are taken in consideration are the breaker mechanical and electrical durability, as well as, the Ics current (these data are configured during the Local Adaptation set up of the breaker).