[Elecraft] P3 - powering from the K3 aux plug

[GLEN BROWN]

Guys,
I run a number of accessories from the switched power on the back of the K3.
 I run it to a powerpole strip and then just plug in all the items that I
want to power up with the rig.  So far I run a W2, an LP-PAN and a 6m
pre-amp.  I'd like at add the P3.  The K3 plug says 0.5A max, which is what
the P3 draws.  So it looks like its either/or.  Is there
enough conservatism in the rating of that power socket to add the P3?

Thanks,
Glen, W6GJB