On 4/29/19 12:05 PM, J.B. Wood wrote:
Does anyone know if this terminal block provided an internal lightning
arrestor of some sort?

You're thinking of one of these:
https://i.ebayimg.com/images/g/sssAAOSwkB5b9gwV/s-l1600.jpg

And yes, the arresters are under the two hex caps.
A pair of carbon rectangles that would fail short and protect
the inside wiring.


--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com