I don't think I've seen one that was anything other than a screw
terminal. Usually it's the type with a square washer thing under the
screw head that clamps down when you tighten the screw. Perfect for
fork terminals, or solid wire.
I was curious about something. Connectronics sells a separate "+/-48V"
and "-48V" model (82-3750 and 82-8694 respectively). We've only ever
used the +/- model, which does not ground either power terminal. It
does have a + and - marked on the terminals and a green LED that turns
on when there's power present (good feature btw).
I don't understand why there's a -48 version at all. If your equipment
has a positive ground, and your supply has a positive ground, why would
you want another positive ground in the middle?
Separately: Thinking about the green LED made me wonder how hard it
would be to have a red LED come on when the power supply side is
connected, but there's an open circuit on the load side, such as the
load being broken/disconnected or the gas tube being popped.
So, just two screw terminals that are surge protected to the ground
bus. That is doable. Put a gas discharge tube on it along with some
faster semiconductor devices. Some fancy DC power surge protectors
have some choke coils and an in and an out.
*From:* Jason McKemie <mailto:[email protected]>
*Sent:* Thursday, July 30, 2015 10:09 PM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] 48DC Surge Protector
Just a standard screw terminal would work fine.
On Thursday, July 30, 2015, Chuck McCown <[email protected]
<mailto:[email protected]>> wrote:
What connectors do you want on it?
*From:* Jason McKemie
<javascript:_e(%7B%7D,'cvml','[email protected]');>
*Sent:* Thursday, July 30, 2015 1:50 PM
*To:* javascript:_e(%7B%7D,'cvml','[email protected]');
*Subject:* Re: [AFMUG] 48DC Surge Protector
I didn't think he was making anything yet. One that fit in the
APC rack mount unit would be perfect.
On Thu, Jul 30, 2015 at 2:23 PM, Lewis Bergman
<javascript:_e(%7B%7D,'cvml','[email protected]');> wrote:
Chuck has one.
On Thu, Jul 30, 2015 at 11:45 AM, Jason McKemie
<javascript:_e(%7B%7D,'cvml','[email protected]');>
wrote:
Where did you buy these?
On Thu, Jul 30, 2015 at 10:29 AM, Paul McCall
<javascript:_e(%7B%7D,'cvml','[email protected]');> wrote:
When we investigated this to protect our 48v
syncInjectors…. DJ with Shelby Broadband turned me
onto these… we have only had them in place for a few
weeks so cant really comment much.
http://www.citel.fr/en/produit/citel-AC-power-SPDs/citel-Type-2-DC-surge-protector/surge-protector-DS230DC-series/ds230-48dc.html
*From:*Af
[mailto:javascript:_e(%7B%7D,'cvml','[email protected]');]
*On Behalf Of *Sean Heskett
*Sent:* Thursday, July 30, 2015 11:15 AM
*To:* javascript:_e(%7B%7D,'cvml','[email protected]');
*Subject:* Re: [AFMUG] 48DC Surge Protector
For Ethernet or for just DC power?
For Ethernet we use the gigE-APC-POE from wbmfg.com
<http://wbmfg.com>
For DC power we use 1,3 or 10 amp "car fuses" in a
fuse block.
On Thursday, July 30, 2015, Adam Moffett
<javascript:_e(%7B%7D,'cvml','[email protected]');>
wrote:
Does anybody have a SS for DC power lines that they
like? Transtector is a little pricey at $200/each so I
was looking for alternatives.
--
Lewis Bergman
325-439-0533 <tel:325-439-0533> Cell
