class2 mix and match

[wyreman]

i always find these in power boxes,
how are they meant to keep them separate from the premise wire 120v

they are always in the box with the power wire
i dont even see how you would mount them like a doorbell tx hanging on a ko or what
looks like mix and match

how would someone even segregate these in a box or mr16 fixture?
View attachment 2551415

 

[wyreman]

and what is with the RU??
didnt things all used to be UL???

 

[don_resqcapt19]

View attachment 2551418
and what is with the RU??
didnt things all used to be UL???

The "backwards R" mark is a listed component ...it is not permitted to be field installed except as a replacement part. It is an item that is intended to be factory installed as a part of a listed product.
As far as the Class 2 conductors in with power conductors, 725.136(D) permits that for equipment that required both sets of conductors as long as you have a 1/4" space between the conductors of the two systems.

 

[LarryFine]

As far as the Class 2 conductors in with power conductors, 725.136(D) permits that for equipment that required both sets of conductors as long as you have a 1/4" space between the conductors of the two systems.

How can these comply with such a separation requirement when the wires share a single nipple?

 

[wyreman]

I have some even smaller ones that the HVAC guy gave me. I mean they’re a lot of fun!