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Hot or cold side of transformer

Started by philws, December 23, 2015, 12:48:59 PM

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philws

 I have a hobby transformer from bachmann  how  do I tell which Wires  are hot on it I have a plain black wire and I black with a white stripe wire?

jbrock27

Keep Calm and Carry On

Hunt

Which variable DC terminal is positive and which is negative is determined by the position of the transformer direction switch.

philws

Yes I have a digital meter.  I'm not using the control part of the transformer just electric part I'm using it for my switches that I had just bought .

Len

If you're talking about the low voltage AC side of the transformer it doesn't really matter. Just pick one side as the "hot" and the other as the "return", then stay consistent with the return side being the common when wiring.

Len
If at first you don't succeed, throw it in the spare parts box.

jward

with ac there is no "hot" side. since household ac changes polarity 60 times per second, both terminals on ac will shock you the same.
Jeffery S Ward Sr
Pittsburgh, PA