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I have a low voltage dry type distribution transformer that has the number 79TS22C on the nameplate. Is this the catalog number?

No, this is a UL reference number which designates the manufacturing facity where the unit was built.

If the catalog number is not plainly apparent on the nameplate of the device, then a description of the transformer (voltage system in/out, kVA, temperature rise, conductor material, etc.) is required to identify a likely cross reference or updated style selection.

CTA-ID : 2000072
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