I can't speak towards the older, larger Unibus models,
such as the 11/45, 11/55, 11/60, and 11/70.
However, these models generally had a standard 115volt line cord:
11/02 11/03 11/23 11/23+ 11/24
11/34 11/34a 11/44 11/53 11/73
11/83 11/84 11/93 11/94
(Sorry in advance, if I left anyone's model off the list.) ;-)
If it's in a rack, it MAY have a power distribution module
at the base, with a 20-amp or 30-amp power cord, but
in most (if not all) cases, the individual chassis inside the rack
will have standard 115volt line cords that plug into it.
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