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In what positions can a general purpose low voltage dry type transformer be mounted?

Ventilated transformers may only be mounted upright - PERIOD!

Encapsulated transformers must be mounted upright to maintain the enclosure`s NEMA rating of 3R. They may be mounted on their back, but then the enclosure only has a NEMA 1 rating. The encapsulated transformer may NOT be mounted upside down.

CTA-ID : 2037509
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