Hello Guys. I need help identifying which pair of leads can be used for 110V. I tried continuity test with multimeter and got continuity on the following pairs (1&3) and (2&4).
Thanks in advance. Cheers
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It's not as obvious as it might be, but the label tells you to put line voltage onto pins 1 and 4 whatever voltage you want to run from.
Then for use on 230V, you link pins 2 and 3 together, putting the windings in series without cancelling each other out.
Or for use on 115V, you link pins 1 and 2 together, and pins 3 and 4 together. That way means the 115V windings act in parallel, again without cancelling each other out.
Edit: This arrangement allows the use of a DPDT switch as a line voltage selector in a way that makes it safe to change while powered up, and there are plenty on the market suitably labelled (usually slide switches). Here's how you'd connect it up, it has a rather pleasing symmetry...