[Elecraft] PowerPoles s way to prevent from plugging them in wrong

[Harry Yingst via Elecraft]

I few day ago someone had posted how the plugged in the power cord wrong (moved over 1 position)
on his K3 and wound up damaging the connector when the shorted the + Supply to the Neg PowerPole.


Note: It's a good Idea to fuse the power cord so that the fuse will blow if this happens.

A simple preventative measure to prevent the cord from being plugged in the wrong way would
be  to simply stick a stick on rubber foot on each side so that the plug will not go in if it's moved
over by one position.


When I build my distribution boxes I recess the PowerPoles. This physically protects
the PowerPole as well as protecting from the possibility of plugging the cable in wrong.