Ah!! This is where I was being unclear.

I’m not sending a consolidation transaction to the address.

I’m imaging making three transactions over time (perhaps from a mining pool without rotating addresses, for example) so that there are three separate transactions with the identical destination address.

This “accumulation address” then holds multiple UTXOs, which need to be consolidated on an outgoing spend, right?

Or do the UTXOs “become one” by nature of being sent to an address that already held older coins?