MCCBs cross-reference 9 brands: 31,147 refs

9 manufacturers in this catalogue publish mccbs, 31,147 references in total. The ranges overlap far less than the category name suggests - below is what each one actually covers, taken from their own order data rather than from a catalogue cover.

What each brand actually lists

Where the ranges differ

• The widest current coverage is allen-bradley, up to 3000 A; the narrowest is siemens at 630 A.
• allen-bradley, eaton, noark list no breaking capacity in the source data at all - not a gap in the range, a gap in the published specification, which matters when you are comparing on paper.

Choosing between them

The brand is rarely the deciding variable. In practice the order is: the current band and pole count your protection study calls for, then the breaking capacity at the point of supply, then what is on the shelf. Only when two candidates tie on all three does the manufacturer matter.

The listings below are the entry point for each brand:

• siemens mccbs - 17,671 references
• allen-bradley mccbs - 5,057 references
• legrand mccbs - 3,114 references
• eaton mccbs - 1,845 references
• noark mccbs - 1,590 references