Pulls from professional High to Very High voltage power supplies
These are feed-through style ports or connectors, typically to allow high voltages to be passed between different sections of equipment, particularly where higher than normal temperatures need to be dealt with as these higher temps could cause other dielectric materials to fail .
CONSTRUCTION:
Materials used are brass and ceramics
Brass is used for the central threaded bolt, each end of the bolt has 2x nuts and 1x copper washer
Threaded bolt is 38mm long x 3mm diameter
Two separate ceramic spacers provide the high dielectric strength of the assembly.
These cups are designed to fit an 8mm hole at the feedpoint (module wall etc)
Maximum "wall" thickness that these would fit comfortably is 2mm but 1mm would be best
NOTES: These were used with equipment that required feedthrough points of 500~1000V DC from the power supply to the modules. I have no data about the ceramic material composition so I cannot tell you what the maximum voltage these will handle before breakdown.
Not supplied is the standard ring terminals which sit between the two nuts at each end of the bolt (crimped or soldered) - these are commonly available
Current carrying capability is not really an issue, a solid 3mm bolt is going to handle a LOT of current!
COSMETIC CONDITION:
All items are clean (metals and ceramics)
NO damage (chips/cracks) to the ceramics
Since removal these have been placed in protective bubble-bags - ceramics are brittle and don't take kindly to being knocked around
They will be supplied in these same bags.
