All of the Astron supplies that Ihave sen have the power switch in the
primary,so when it it turned off there is no current being drawn.

In my situation I have radios that stay on all f the time, so my
power supply is almost never switched off. Lambda supplies
don't have a pwoer switch so I have to unplug them to turn them off.

Thenice thing about a MOV or other over voltage protector, is it
will help tostop any line spikes from getting tot he power supply.
I use a non MOV style,a Zero Surge, but MOV based units are
much more common and can realy save you supply.

I have my "radio desk", a PC "L" desk in fact, wired with a
DPDT magnetic breaker so I can flip one "switch" and remove
connection with both sides of the AC mains. I have another
breaker for the standby gell cells so so with one hand I can
knock my entire system down. Likely over kill, but I wanted
something that was easy and fast to kill all power in case
something goes wrong.

Terry