I am hoping to install zooz smart switches, however the instructions state "14AWG wires only!", but I have a 20amp circuit which uses 12awg wire. Looking at the code regarding smart switches:
"They shall be marked by their manufacturer with their current and voltage ratings and used for loads that do not exceed their ampere rating at the voltage applied."
The switches will be connected to ceiling fans and lights, none of which will draw more than 15amps or exceed the other limits set by manufacturer, so it is my understanding that using these switches is allowed on a 20amp circuit, but practically it seems that:
A) I shouldn't use these switches on 20amp circuits, as I'm not sure how one could without either using 14awg wire on 20amp circuit, or ignoring the manufacturer's instruction with the exclamation mark to only use 14awg wire.
B) I could disregard the manufacturers statement about only using only 14awg wire. I'm not sure why 12awg would cause an issue, the switch is only rated for 15amps, but 14awg wire would not prevent a load of more than 15amps, correct?
C) I could pigtail 14awg wire to the 12awg wire in my junction box, but I believe doing so is against code and generally considered bad, and therefore I'd rather not, although I'm not quite sure why in this scenario:
- the light fixtures/fans themselves have 16awg wires, if there was a scenario where 18amps was going to the fixture, would not these wires be at greater risk of combusting than 14awg jumper wires?
- the circuit powers multiple light fixtures, two ceiling fans, and 8 outlets plugged to speaker system and small kitchen appliances, it seems unlikely that a rogue smart light or something would be able to draw more than 15amps without tripping the circuit.