It might be worth considering what happens to these things when they DO have
to clamp a surge. Is your construction material going to catch fire from
the heat generated by the MOV?
Steve
On Mon, Mar 15, 2010 at 12:26 PM, Reverend Fuzzy
<cmayeux@xxxxxxxxxxxxxxxxx>wrote:
Most of them are just that... MOV's When I found that out, I built my own
with 3 heavy-duty MOV's on a piece of perfboard, then
covered the whole board in a chunk of heat-shrink tubing... wound up with a
module as big around as a small matchbox, with one red,
one black, and one green wire coming out of the end... total cost, under
$10.
(black to phase A, red to phase B, green to neutral/ground bus bar.)