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That is correct which puts both input & output on H4, et al. Let me know if you have any questions
Those are the characteristics of a buck-boost transformer. What are you trying to do, increase the voltage? From what to what?
10-4, thanks, looking at the data, will return
You are attempting to use a buck-boost transformer where a step-down transformer should be used instead. Does the load specifically require 208 Volts or will it run on 230?
If you have 252 volts, that is within specs for a 230 Volt system (230 x 1.10 = 253)
However, if this is on a 480/277 Volt System, you still need a step-down transformer, not a buck-boost.
Because you are trying to use it in a manner that it is not intended or designed for, see above