Interesting point, though I guess all such plug-in MCBs operate the same way though!So what's the consensus on Wylex 3036 boards fitted with plug in MCBs? MCBs are 'down' for off; older 3036 boards are 'up' for off on the main switch.
EDIT: That is also a UK versus EU+USA sort of thing. Our convention for most switches has been down=on but I often see up=on abroad.