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How to interpret if data for cable cross-section is expressed as M6, M8, M10, M12?

Such a data can be found in instruction sheet, as in attachment for instance.

The values expressed as Mxx (e.g. M6,M10, M12) means there is a hole in busbar for connecting the cable with cable lug.
So max cable cross-section then depends on the cable lug you buy.
If you buy cable lug e.g. Cu120 - 12 (see picture) it means that this lug is dedicated for 120mm2 cable and has hole prepared for mounting using M12 bolt.

Schneider Electric Canada

Attachment(s)
Cable lug example.jpg [21.57 KB]
Connection.jpg [88.02 KB]
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