feet,
There's a recent large, deep thread on breakers, probably more than you'd like to know. However if you drop into this post in the middle of it you'll find Eaton breakers mentioned, and recommended by @harmonyards:
Airpax Snapac Hydraulic-Magnetic Circuit Breaker Internal Mechanisms - Updated 5/12/2021
The whole thread focuses primarily on fast breakers for protection of modern stuff. Using them with a ZW is a good idea if you're going to be running modern things.
M.H.M.