Thank you so much, everyone! Unless, magoo2 or ScottyUK want to overrule me, sounds like consensus is two-pole fusing.
jraef, thanks so much for the fabulous link. I googled your other information and came across this Moeller wiring diagram booklet (probably what you saw?), specifically pages...
Could anyone help me identify a European electrical symbol in the attachment. The AC of the generators is passed through a drive to a DC bus. The DC bus then feeds another drive to an AC motor. What is the symbol between the drives and the DC bus? The DC bus was drawn up by perhaps Dutch or...