When are dimmer switches not allowed to be used?
Tuesday, November 3, 2020
Dimmers are not allowed to control switched receptacles, according to the International Residential Code (IRC 4001.12). The code does not state this directly, but says “general-use dimmer switches shall be used only to control permanently installed incandescent luminaires (lighting fixtures) except where listed for the control of other loads and installed accordingly."
The problem with using an ordinary dimmer for a receptacle is that any type of appliance or lumaire can be plugged into it. If the dimmer switch is not rated for the load, it can overheat, short, and possibly start a fire.
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