Actually, my second to last boat's bilge pump was wired directly with no switch override. It's a smart thing for boat builders to do and thought it was a standard on all boats.
That is, until discovering that my Nauticat was wired with a three way toggle switch, not unlike the one max posted. Could not see any value in having an off position - especially in conjunction with a float or electronic sensor switch.
True Blue . . .
sold the Nauticat