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I need a wiring diagram for a Square D 30T3H transformer. None of the lugs are identified in the transformer.

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  • Paul Glasnapp Nov 11, 2010

    I was able to figure out the necessary wiring and have solved my problem. Thank-you.


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Posted on Jan 02, 2017

SOURCE: need wiring diagram for transformer and themostat
There is a manual it has a diagram inside.

That's all the info i could find mentioned at all on the net, I did exhaustive searching....

Posted on May 15, 2010

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Depending where that transformer connected, it could merely be a 24 volt contral transformer- especially if the cooling fan has only one pair of wires coming from it, It has several boards, and those are not intended for field repair, but knowing where int he circuit that transformer is will make it a lit easier to identify. If it has a tag number that might cross to an original vendor part.

If yours is the LT5000, they have apparently had some problems and do have some literature for download

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Electricity can be your friend but can also kill you. Disconnect the power before altering or making any connections. If you don't know what you are doing, don't become a statistic, get help.

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