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Christian,
Can
you provide a few more details of your ring main please - total length, is
it
really a ring, or a radial circuit (lots of spurs from one location),
number of 12V outlets, type of outlets (i.e what sort of sockets), cable
type
used etc
And
Pin 14 ? I haven't noticed that on the ones I've seen in the
past.
Thanks,
Tim
H.
(now
interested in doing something similar)
-----Original
Message-----
From:
Christian Cundall (UKHA)
Prhaps you are all missing the point with power
supplies - use a PC power supply, you have 5+ 12+ and usually at 12 to 20
amps. I have a PC power supply running a 12 volt ring main in my house and
vola no more wall warts.
You
just jumper pin 14 of a PC power supply to neutral and the power supply
kicks
into life.
Tim,
What current rating do you need ?
CPC do a few "Power Supply Modules" (page 1019, 2003 catalogue) in
their "Kits & Modules" section of the catalogue (I presume "module"
means it comes ready-assembled):
12Vdc (or 24), stabilised (regulated ?) with the choice of 1A,
2A, 5A & 10A ratings. Prices range between GBP 15 - 60 plus VAT. The
pictures doesn't show cases.
Alternatively, there's the "Bench Power Supplies" (P1445) where you
can select the output voltage. Some go up to 10A and all have cases. Prices
top out at around the GBP 150 mark for the 10A unit.
HTH,
Tim H.
(not put a ring main in, just knew I'd seen the PSUs
somewhere)
For those of you that have
installed 12V ring mains, what supply did you use? I’ve managed to
find a
DIN rail mounted 24V supply at RS, but for one it is 24V and secondly it
is unregulated.
Tim.
+
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