UL Listing of Resistor Box
UL Listing of Resistor Box
(OP)
I have a situation where resistors must engage to correct a problem. The Vendor has bought some off the shelf NON UL Listed resisotrs and threw them in a hoffman box UL Listed.
My understanding was everything must be UL Listed.
This is a project in USA. I am asking the AHJ, but in the meantime I would like some opinions.
Side question. Can you add UL components to make a control panel and have the panel be UL Listed? Vendor says you can. My thought was the assembly must be certified, not just the components, but the components combined.
My understanding was everything must be UL Listed.
This is a project in USA. I am asking the AHJ, but in the meantime I would like some opinions.
Side question. Can you add UL components to make a control panel and have the panel be UL Listed? Vendor says you can. My thought was the assembly must be certified, not just the components, but the components combined.





RE: UL Listing of Resistor Box
The point being, if the ONLY thing in the box is the resistors, then it does not need to be listed separately.
By the way in the component count, the box and back panel do not count.
"Will work for (the memory of) salami"
RE: UL Listing of Resistor Box
That makes sense, but the resistors are not listed by a NRTL?
RE: UL Listing of Resistor Box
"Will work for (the memory of) salami"
RE: UL Listing of Resistor Box