Can the new Easy9 and Easy9+ MCB's and RCBO's fit the older Domae consumer unit?

Yes, both the Easy9 and Easy9+ MCB's and RCBO's will fit the older Domae consumer unit and any of the older Domae range of consumer units.

Examples of Domea consumer units below;
DOM2CU
DOM4CU
DOM6CU
DOM8CU
DOM12CU
DOM16CU
DOM20CU

Released for:Schneider Electric UK