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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 should be the dielectric test voltage for a Compact NSX MCCB?

The dielectric test is related to the Insulation voltage "Ui" of the MCCB. For NSX MCCBs, the Ui is 800Vac. Accordingly and as per Table 12 of IEC 60947-2, the dielectric test voltage shall be 2000Vac for 1 second.