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What are the temperature ratings of k Factor rated transformers?

Square D NL (k4) an NLP (k13) transformers are available in 150 C, 115 C and 80 C rise in both copper and aluminum. These are shown in the Digest and can be assembled in Product Selector / eWay.
A K20 transformer can be special ordered in copper or aluminum but only 150 C rise designs are available.

CTA-ID : 2049122
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