John,

Just because the Specification says 20 amps, that is the maximum current draw for the amp - it does not say that the breaker must be 20 amps, only that it must be 20 amps or higher.
A 30 amp breaker is fine if the wire is #10 or larger.

Think about what you normally plug into a 120 volt 15 amp receptacle - does it always draw 15 amps? Certainly a hair dryer might, but your cellphone charger does not.

73,
Don W3FPR

On 7/10/2018 1:34 PM, [email protected] wrote:
I based that statement on the 20amp KPA1500 rating shown on page 28 of
their manual. Obviously this is incorrect or it is very inefficient, but
still a station can have multiple heavy duty rotators, computers, multiple
transceivers, etc.

http://www.elecraft.com/manual/E740301%20KPA1500%20Owners%20Manual%20Rev%20A8.pdf

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