Eaton MCBs: 4,157 refs, 0.5-100 A

There are 4,157 mcbs in the Eaton catalogue. 83% of them carry a rated value in the manufacturer data rather than a name only. Rated current spans 0.5 A to 100 A. 1-pole is the most common configuration (1,114 codes), 3-pole the next (1,017).

How it splits by current

The 133 order-code families here are too fine a grain to compare one by one, so the table groups them by the rated current that is actually present.

The single busiest band is up to 16 A, holding 2,043 of the 4,157 references (49%).

Narrowing it down

Start from the full mcbs listing, which carries every reference with its own parameter table. The filters that actually cut the list:

• The rating that cannot be traded off. Every family has one - the figure the application is built around - and it decides the rest.
• The physical envelope second. It is what the panel or the machine has to accommodate, and it is expensive to change later.
• Availability last. Between two parts that both fit, the one with a stated lead time is the one to quote.

Every reference below links to its own page with the manufacturer's original description, so the final check is made against the source text rather than against this summary.