Have also used 4-pin 'CB mic' plugs for exactly the same purpose and can recommend them. Other than that there are also DC barrel connectors which are designed for low power DC use.
Mains plugs for 12V DC
Sep 26, 2008
23 Replies
We used to use the two parallel pins for 32v or less ac and the polarised [t shaped] ones for 32v or less dc.
I found those only useful for a short life. Minly they lost contact on the inner pin. OTOH, I only used "cheapo" standard and not an expensive brand name version.
There are the 12 Volt - 32 Volt DC 2 pin T automotive/caravan types described here
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as fixed polarity plugs and sockets that Malz in WA sell under a KC brand I think. Also here
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Regards
Blue
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