Originally Posted by mclarkson
Thanks for the advice. I've found a few switches on line, like this one
and this one
That first JR switch should do it. Looks like a single pole double throw, rather than double pole double throw. So you'd loose redundant contacts, but odds of the switch failing are rather low.
Before retiring, the switches we used might be operated once or twice a year. That is where you can get into trouble in low voltage, low current applications, unless the internal switch contacts are gold plated.
Some of our critical applications used four contacts in parallel for reliability. And we'd still have a switch failure now and then.