Quote:
Originally Posted by m3chhawk
Also you just need a single pole, single throw (SPST) normally closed (NC) relay.
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If you have trouble locating a SPST-NC relay, you can use a SPDT (single-pole, double-throw), or a DPST-NC (double-pole), or a DPDT, or even 3PST-NC, &c. It's just a matter of using different terminals.