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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 difference between the following trip units (TMD and TMG trip units) used with NSX MCCB (100-160 -250) A ?
For NSX MCCB with ratings 100/160/250 A:

TMD: it is a thermal magnetic trip unit used for distribution networks (D: Distribution)

TMG: it is a thermal magnetic trip unit used for Generation plants (it has extra different protection functions for generation phase that are not found in TMD)

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