On 4/21/22 10:44 AM, Krill, Coy via MIDRANGE-L wrote:
Pull the plug out. 3phase will have 5 pins and single phase will have 3.
Actually, it may only have 4 pins (as does single-phase 240VAC with a
At the Printing Museum (https://www.printmuseum.org), we've standardized
on a specific size and configuration of 4-pin twist-lock 3-phase plugs
for our 240V plugs and sockets, even if we're plugging in single-phase
(I spend my Saturdays docenting there; it was because I'm a programmer
by trade that I was the first one there to realize that the notches at
the top of a Linotype matrix form a binary code.)
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