On a sunny day (Wed, 16 Jan 2019 13:34:32 +1300) it happened
nospam.Rick.Christian@f377.n135.z1.binkp.net (Rick Christian) wrote in
:

>So 10 Pi's is basically 30 AMPS!! I've seen various thin PS with 5VDC and
>30-40AMPS out, my big dislike, they use screw terminals for the AC! Nein! Even
>with a crimped ring connector 120VAC on screws is not what I call safe or good
>practice... Something with an IEC AC input is much more preferred...
>
>Any have suggestions for the above for racks and power supplies ? ? ? ?
>
>THANKS!
>
>
>Rick

I have several Meanwell power supplies.
Yes those have screw terminals and we have 230 V here.
I do not see the problem?
Those are meant to be mounted into some industrial type of housing.
Very good quality.

10 raspberries is basically 10 x 350 mA = 3.5A, maybe more for the B3+,
but never 30 A.

https://raspi.tv/2018/how-much-power-does-raspberry-pi-3b-use-power-measurement
s
So worst case 530 mA (from that site), then you need a 5 or 6 A power supply.
One Meanwell would do, seen those on ebay for about 25$.
ATX is fine too, use the 12 V for a CPU fan to cool the rack.

Cooling will be you biggest challenge perhaps.

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