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From: John R Walliker <jrwalliker@gmail.com>
Newsgroups: sci.electronics.design
Subject: Re: Re:mountable power ports
Date: Thu, 27 Mar 2025 22:59:44 +0000
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On 27/03/2025 16:21, Martin Rid wrote:
> Christopher Howard <christopher@librehacker.com> Wrote in message:r
>> Hi, my project box is a large tin cookie box. I need to bring in +15V,-15V, and GND lines from my external bipolar power supply. (I wasthinking I would have a separate bolt for the chassis ground, whichwould go off to a big ground bus bar near my workbench.) For the threelines from the power supply, I am wondering what would be the best (buteconomical) choice for a power connector to mount into the side of theproject box. Something that sounded appealing was the spring speakerterminal clips I see on Amazon, but the downside there is they only comein pairs of two or four, rather than three, and they are color codedred/black which does not quite make sense here. I am inclined to leavethe wires on the power supply itself bare on the end, rather thanattaching some specialty connector to those.-- Christopher Howard
> 
> If its rather low current,   coaxial power plug and Jack, or even
>   a 1/4" stereo Jack. I prefer the binding posts.
> 
> Cheers

They are not round, but Anderson Powerpole connectors can be
very useful.  The ground connector mates before the other ones
and they can be built up into various multi-contact combinations.

The current rating may be overkill for many projects, but they
are versatile and reliable.

John