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Author DC Power Panel
Michelle P

2005-09-13, 2:24 pm

Hi all,
I was just wondering what would one use as a DC power distribution
Panel? Needing Breakers and a buss bar.
Marine? or does a standard AC panel work for this purpose?
Michelle

Steve Spence

2005-09-13, 2:24 pm

see http://www.powerwerx.com/category.asp?CtgID=1841

Steve Spence
Dir., Green Trust, http://www.green-trust.org
Contributing Editor, http://www.off-grid.net
http://www.rebelwolf.com/essn.html

Michelle P wrote:
> Hi all,
> I was just wondering what would one use as a DC power distribution
> Panel? Needing Breakers and a buss bar.
> Marine? or does a standard AC panel work for this purpose?
> Michelle
>

SQLit

2005-09-13, 2:24 pm


"Michelle P" <thecatsandiSPAMMeIfYouDare@earthlink.net> wrote in message
news:hn4Ue.9079$_84.6593@newsread1.news.atl.earthlink.net...
> Hi all,
> I was just wondering what would one use as a DC power distribution
> Panel? Needing Breakers and a buss bar.
> Marine? or does a standard AC panel work for this purpose?
> Michelle
>


What voltage? Where is it going to be located? Do you need UL?



Martin Riddle

2005-09-13, 2:24 pm

Square D QO breakers are 48vDC Rated (10-70A versions). Thats if you require the higher current, else Steve's links will do.

Cheers

"Michelle P" <thecatsandiSPAMMeIfYouDare@earthlink.net> wrote in message
news:hn4Ue.9079$_84.6593@newsread1.news.atl.earthlink.net...
> Hi all,
> I was just wondering what would one use as a DC power distribution
> Panel? Needing Breakers and a buss bar.
> Marine? or does a standard AC panel work for this purpose?
> Michelle
>



Michelle P

2005-09-13, 2:24 pm

Sorry,
Guess I should not post when tired.
I am looking for a indoor distribution panel much like (in function) to
the one I have for the AC distribution.
Michelle

SQLit wrote:

>"Michelle P" <thecatsandiSPAMMeIfYouDare@earthlink.net> wrote in message
>news:hn4Ue.9079$_84.6593@newsread1.news.atl.earthlink.net...
>
>
>
> What voltage? Where is it going to be located? Do you need UL?
>
>
>
>
>


Bruce in Alaska

2005-09-13, 2:24 pm

In article <XLeUe.9294$_84.1298@newsread1.news.atl.earthlink.net>,
Michelle P <thecatsandiSPAMMeIfYouDare@earthlink.net> wrote:

> Sorry,
> Guess I should not post when tired.
> I am looking for a indoor distribution panel much like (in function) to
> the one I have for the AC distribution.
> Michelle
>
> SQLit wrote:
>
>


As a previous Poster pointed ut, the SquareD QC Panels with QO Breakers
will function up to 48Vdc. I use these for all my DC and AC distribution
around here.


Bruce in alaska a proud new owner of a MDJE Onan for $300US...
what a score..... and it runs......
--
add a <2> before @
William P. N. Smith

2005-09-13, 2:24 pm

Bruce in Alaska <bruceg@btpost.net> wrote:
>As a previous Poster pointed ut, the SquareD QC Panels with QO Breakers
>will function up to 48Vdc. I use these for all my DC and AC distribution
>around here.


Does that mean they are OK for 48V nominal battery systems (up to
nearly 60V), or are they really only for 48.0VDC?

Thanks!
Martin Riddle

2005-09-13, 2:25 pm

Only for 48VDC max systems. 48VDC is the real rating.
No it should not be used on a 48-60vdc system if you want it to comply.
These breakers may not interrupt current at these higher voltages.

Cheers

<William P. N. Smith> wrote in message news:n7m3i11kfqbppgvtij5bq785qfqom83aml@4ax.com...
> Bruce in Alaska <bruceg@btpost.net> wrote:
>
> Does that mean they are OK for 48V nominal battery systems (up to
> nearly 60V), or are they really only for 48.0VDC?
>
> Thanks!



Michelle P

2005-09-13, 2:25 pm

Great! Thanks Guys.
I am designing for my next house. I am going as solar as possible.
Need background info before hitching up with a architect and builder.
Michelle

Michelle P wrote:

> Sorry,
> Guess I should not post when tired.
> I am looking for a indoor distribution panel much like (in function)
> to the one I have for the AC distribution.
> Michelle
>
> SQLit wrote:
>
>


Solar Flare

2005-09-13, 2:25 pm

DC breakers for 130vDC systems are brutally expensive. I believe 130-150vDC
will be the next DC breaker class after 48vDC


"Martin Riddle" <martinriddle@hotmail.com> wrote in message
news:RWlUe.48$sa6.32@trndny06...
> Only for 48VDC max systems. 48VDC is the real rating.
> No it should not be used on a 48-60vdc system if you want it to comply.
> These breakers may not interrupt current at these higher voltages.
>
> Cheers
>
> <William P. N. Smith> wrote in message

news:n7m3i11kfqbppgvtij5bq785qfqom83aml@4ax.com...
distribution[color=darkred]
>
>



Ignoramus965

2005-09-13, 2:25 pm

I have DC breakers for high voltage... If anyone has interest in
buying them, say so here.

i

On Fri, 9 Sep 2005 22:09:57 -0400, Solar Flare <sflare@hotmail.com> wrote:
> DC breakers for 130vDC systems are brutally expensive. I believe 130-150vDC
> will be the next DC breaker class after 48vDC
>
>
> "Martin Riddle" <martinriddle@hotmail.com> wrote in message
> news:RWlUe.48$sa6.32@trndny06...
> news:n7m3i11kfqbppgvtij5bq785qfqom83aml@4ax.com...
> distribution
>
>



--

Bill Kaszeta / Photovoltaic Resources

2005-09-13, 2:25 pm

What do you consider 'high voltage'?

On Sat, 10 Sep 2005 02:43:12 GMT, Ignoramus965 <ignoramus965@NOSPAM.965.invalid> wrote:

>I have DC breakers for high voltage... If anyone has interest in
>buying them, say so here.
>
>i
>
>On Fri, 9 Sep 2005 22:09:57 -0400, Solar Flare <sflare@hotmail.com> wrote:
>
>
>--
>


Bill Kaszeta
Photovoltaic Resources Int'l
Tempe Arizona USA
bill@pvri-removethis.biz
Solar Flare

2005-09-13, 2:25 pm

In the DC relay contact world "High Voltage DC" is considered over 24 Volts.

"Bill Kaszeta / Photovoltaic Resources" <kaszetaw@mindspring.com> wrote in
message news:4323b7f7.134472265@news.west.earthlink.net...
> What do you consider 'high voltage'?
>
> On Sat, 10 Sep 2005 02:43:12 GMT, Ignoramus965

<ignoramus965@NOSPAM.965.invalid> wrote:
>
wrote:[color=darkred]
130-150vDC[color=darkred]
comply.[color=darkred]
Breakers[color=darkred]
>
> Bill Kaszeta
> Photovoltaic Resources Int'l
> Tempe Arizona USA
> bill@pvri-removethis.biz



William P. N. Smith

2005-09-13, 2:25 pm

"Solar Flare" <sflare@hotmail.com> wrote:
>DC breakers for 130vDC systems are brutally expensive. I believe 130-150vDC
>will be the next DC breaker class after 48vDC


Hmm, wasn't there something about putting two breakers with their
handles tied together in series electrically and doubling their
voltage rating, or am I thinking of something else?
William P. N. Smith

2005-09-13, 2:25 pm

Ignoramus965 <ignoramus965@NOSPAM.965.invalid> wrote:
>I have DC breakers for high voltage... If anyone has interest in
>buying them, say so here.


Well, I am, but I haven't selected the rest of the equipment, so I
don't really have a spec for what I need...
Ignoramus12753

2005-09-13, 2:25 pm

On Sun, 11 Sep 2005 18:04:26 -0400, William P N Smith <> wrote:
> Ignoramus965 <ignoramus965@NOSPAM.965.invalid> wrote:
>
> Well, I am, but I haven't selected the rest of the equipment, so I
> don't really have a spec for what I need...


Well, write me to ichudov AT algebra DOT com if you have questions...

i
--

Ignoramus12753

2005-09-13, 2:25 pm

Looks like many DC breakers are also available on ebay, check it out.

i

On Sun, 11 Sep 2005 23:56:36 GMT, Ignoramus12753 <ignoramus12753@NOSPAM.12753.invalid> wrote:
> On Sun, 11 Sep 2005 18:04:26 -0400, William P N Smith <> wrote:
>
> Well, write me to ichudov AT algebra DOT com if you have questions...
>
> i



--

Solar Flare

2005-09-13, 2:25 pm

All conductors that are not grounded at some point must be protected by
overcurrent devices.


<William P. N. Smith> wrote in message
news:0ca9i19u934up9b8da930da76lbfdfj4io@4ax.com...
> "Solar Flare" <sflare@hotmail.com> wrote:
130-150vDC[color=darkred]
>
> Hmm, wasn't there something about putting two breakers with their
> handles tied together in series electrically and doubling their
> voltage rating, or am I thinking of something else?



William P. N. Smith

2005-09-13, 2:25 pm

><William P. N. Smith> wrote in message
>130-150vDC
>

"Solar Flare" <sflare@hotmail.com> top-posted:
>All conductors that are not grounded at some point must be protected by
>overcurrent devices.


And? Does this answer my question in some way?
Martin Riddle

2005-09-13, 2:25 pm

LOL

I think the problem with series breakers and tied poles is that one breaker may still not open at the same time as the other.
Resulting in welded contacts.

That better?

<William P. N. Smith> wrote in message news:8dkai1lup3bn4ifrpq03rqv6tu6rrusc06@4ax.com...
> "Solar Flare" <sflare@hotmail.com> top-posted:
>
> And? Does this answer my question in some way?



Bill Kaszeta / Photovoltaic Resources

2005-09-13, 2:25 pm

Only if the circuit breaker is Listed for wiring that way.

On Sun, 11 Sep 2005 18:03:40 -0400, William P. N. Smith <> wrote:

>"Solar Flare" <sflare@hotmail.com> wrote:
>
>Hmm, wasn't there something about putting two breakers with their
>handles tied together in series electrically and doubling their
>voltage rating, or am I thinking of something else?


Bill Kaszeta
Photovoltaic Resources Int'l
Tempe Arizona USA
bill@pvri-removethis.biz
Solar Flare

2005-09-13, 2:25 pm

I guess you were thinking of the series effect offering higher potential
breaking ability and I was thinking about safety and the rules. My bad.
Twisted the topic then.

<William P. N. Smith> wrote in message
news:8dkai1lup3bn4ifrpq03rqv6tu6rrusc06@4ax.com...
> "Solar Flare" <sflare@hotmail.com> top-posted:
>
> And? Does this answer my question in some way?



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