Can't hear the doorbell from the back of the house? It's easy to correct that by adding a second doorbell chime.

Please study the transformer connections shown in Figs. 2, 3, and 4. Fig. 2 is a wiring diagram of an isolated transformer, including the input and output voltage at each winding. Fig. 3 shows this ...

Do not remove parts or make connections while transformer is energized. Electrical Connections Refer to the transformer nameplate label or enclosed wiring diagram for primary and secondary voltage ...

In this episode, EC&M's Code Consultant Russ LeBlanc identifies a wiring problem with this Class 1 transformer. He points out a violation of the requirements of Sec. 725.46 of the 2014 NEC.