---
You're welcome.

Since we're guessing, I'd be almost willing to bet that what blew up
on the yellow terminal block was an MOV. They often go
catastrophically, and the damage to the terminal block says that
something pretty violent happened there.

The other one is kind of interesting because of the smudges on the
wires and the horizontal band of clean between the smudges on the
wall. I have no clue what might have done that!

Are there any pieces left in the box?

--
JF


John,

In the bottom of the can is a small pile of charcoal and a small metal disk
that is smaller than a time. I assume that was the internal of a MOV.
Other than that, it appears that all has vaporized.

The orientation of the pictures seems to be rotated 90 degrees to the right.
I think the ?device? was mounted behind the wires and when it went poof'e
the wires got scorched as well as the back of the can.

Thanks for the link I will check it out.

Les