Overcurrent protection for electric furnace

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Howard@wherequalitystarts

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Location
bowie md
Occupation
master electrician
Good morning to all.
Have 10kw electric furnace motor is 1.75amps which needs 55amp after doing calculations including motor the furnace has 60amp breaker in it can
Use a 55amp breaker at panel

will I be code compliant
 
the rating of the breaker in the furnace has no bearing on the rating of the feeder breaker.

I think the answer to your question will be found in 215.3.

By the way, where would you be able to get a 55 Amp rated breaker.
 
Does the specification provide MCA & MOCP? 55A is not a standard ampere rating according to 240.6, but that is not saying such a breaker doesn't exist. Why go through the trouble with guessing when you can copy the same size as the factory supplied. They have a 60A on their for a reason.
 
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