I was looking at the commercial isolation transformers and they are very costly, so I decided to build my own. After all, all they are is a transformer with a power cord on the primary and an outlet (and fuse) on the secondary. And I already have an enclosure to put it in.
I'm looking at a bare transformer to use as an 120v isolation Transformer. (120v in, 120v out). The transformer primary is 480 / 240. The secondary is 240 / 120.
This is for single phase 60 cycle AC. (U.S. power).
Will it work if I connect the 240 lugs on the primary to 120 volts, and use the 240 lugs on the secondary to obtain 120 volts. Electrically, this makes sense, but I am not 100% sure, so I thought I'd ask.
Also, this Transformer is rated at 750 va.
Using the calculator chart on
However, since this transformer was intended to be used at 240 / 480 on the primary, will it still give me 750 va (6.25 A) on the secondary if I run it on 120v?
Thanks