yes it has the UR mark on it. how does this implicate the setup? (what if it did not have it?)
...
this almost implies to me that only protection devices are required to be UL rated and non-protection devices are not required to. But I doubt it's that simple
I'll try this again, sorry I made it unclear.
It it were a switching or protection device, a UL508 panel shop could add it to their procedure and use it without having to be re-tested by UL. No such program exists for other assemblies, so UL testing and approval of the entire assembly becomes necessary.
A motor will be UL listed if it can be, but that means it meets certain specifications, some of which may be considered "over kill" to an OEM that doesn't need them all because they are using it in a specific way that precludes them. So the OEMs can get away with something a little less universally acceptable but more importantly for them, less expensive. If for example you are the mfr of an air handler unit, and you want to get a UL label on the
entire air handler unit, then the fact that you use a UR motor means that you circumvent testing on THAT component going into the Air Handler and UL will evaluate it based on how you used it inside, which lowers the cost of testing the entire unit.
If you are not tan OEM, a UR mark means, to an inspector, that this motor was designed for a specific use and he will have to take responsibility for evaluating how you used it. Some AHJs will not do that, opting instead for insisting that you use NRTL
LISTED devices. So if you are NOT an OEM, then using a UR motor puts you at risk of getting a red tag. You might get away with it, but you are taking a chance, the consequences of which should be weighed against the cost of buying a Listed version, if one exists.