Re: Wiring a swing gate?
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Using a “limit switch” to drive a relay is an excellent idea. My suggestion is use a low AC voltage in the control circuit. Note the current ratings on the switch you showed in the link.
The reason for the much lower current rating with DC voltage is caused by arcing when the contacts open. Initially the switch will “work” very well, but eventually the switch will become intermittent, and then fail. Using a low AC voltage in the control circuit slows the degradation of the switch contacts immensely; to many years out. An inexpensive wall wart transformer would be a great power supply.
On Jun 8, 2022, at 07:21, Jim Betz <jimbetz@...> wrote: