Oh -- I thought you were shopping for power supplies, so I was =20
suggesting getting something COTS, you make the mods, and provide =20
those to your customers as ready-to-use units.

Alternatively, how about building your protection/shutoff circuit on a =20
small PCB with male and female connectors.  If you are still acquiring =20
PS'es, you can choose something with a different connector than what's =20
on the device to be powered and match connectors on your protection =20
PCB, so that they are forced to use it.

Now, I'm not sure how much is "too visually different".

Cheers,
-Neil



Quoting David VanHorn <microbrix@gmail.com>:

> Whatever I do has to be something that the end user can apply, and
> that isn't too visually different.
> I'm pretty much constrained to replacing the power supplies with
> something that just shuts off till the input is removed.
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