Can do. I wonder, should the voltage in LED remain lit when the fuse is blown?
From: George Skorup Sent: Friday, July 31, 2015 10:27 AM To: [email protected] Subject: Re: [AFMUG] 48DC Surge Protector What about a 5x20mm fuse holder on it as well? That would be pretty cool and make for less wiring. On 7/31/2015 11:16 AM, Adam Moffett wrote: 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 Sent: Thursday, July 30, 2015 10:09 PM To: [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]> wrote: What connectors do you want on it? From: Jason McKemie 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 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 Cell
