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AC and DC switches? Answered

What is the difference between ac and dc switches? Can a 120v switch be used for a 12V application?

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randofo

2 months ago

Yes. Switches have different ratings depending on voltage and current. For the most part, if it will work for 120V, it should be fine for 12V (assuming it is not high current). The short of it is that you don't want to send more power through the switch than it can handle. This is determined by the relationship between voltage and current (as calculated using Ohm's Law).