[Elecraft] Wattage Draw - K3S/100 vs KPA500/KAT500 - for UPS

[Mike Maloney]

Oh my!  The KPA500 is more efficient than you give it credit.   Since few have instruments to measure ac input parameters, will volunteer actual measurement figures.At 650W output into 50 ohm load, highest VA recorded was at 14.1 MHz at 1166.  Watts 974 with a pf of 0.83 or 83%.   AC input amps 10.3.   Awesome!
73,Mike  AC5P 

    On Wednesday, August 30, 2017 7:28 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
 

 Tom,

That 3000 watts I mentioned is for everything in the station.
The KPA500 alone needs 120 volts at about 13 amps, maybe peaking to 
something greater.

73,
Don W3FPR

On 8/30/2017 8:16 AM, KQ5S-Tom wrote:
> 3000W at 120V is 25 amps.  He had better have a dedicate circuit.  I believe if I had to run a dedicated circuit I would run a 220 circuit for the amp and put everything else on the UPS.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to ac5p at sbcglobal.net