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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.

For Acti 9 in a panel which requires all components operating temperature 50 degree C, Shall we apply derating ?

The derating of the MCB depends on the change of the ambient temperature of the breaker.

The attached document for the influence of temperature on the breaker for each range of the MCB's.