Greg.,

IIRC the NEC code commite did talk about the PV DC disconnection but it seems they never get to the moot point for safety issue and what I am aware with roof top photocell array they should have DC disconnect switch and I did see at least two did not have proper disconnect switch on the roof top set up the other issue is voltage class that something I know it will cross the line here.

I am not suprised with solar panels can crank pretty serious voltage I know the last one I did couple quick repairs the DC solar panels there were running about 370 or so Volt DC so that one reason why I feel it allready cross the line for safety on resdential area.

Wolfgang I did see the link about the solar disconnect switch device that look good.

I will dig up and find our verison { France } and compared to the USA verison as well.

Merci,Marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)