MCA 20.5 AC equipment

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Greg1707

Senior Member
Location
Alexandria, VA
Occupation
Business owner Electrical contractor
I often see minimum circuit ampacity for AC equipment listed: 20.5 amp or 30.5 amp.
Is that just the way the math works or are they wanting a larger conductor?
 
Most likely how the math works. There are rules in the product standard that specify how the calculation is to be made.
 
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