Listing

[Captorofsin1]

Does the NEC require doorbell chimes to be listed? I do know that every doorbell transformer that I have installed has been either ETL or UL listed. Just wondering if desert requirement on the doorbell chime

 

[hbiss]

The transformer, yes because it operates off line voltage. The chime itself is low voltage and is supplied by the CL2 transformer so no, the chime does not.

-Hal