Digest for RE-wrenches at topica.com, issue 2393 [RE-wrenches]

[Geoff Greenfield]

Allen - Thanks for the pointer to Midnite.  Their "Baby box" will be the
easiest/cleanest way to get our needed breaker in the circuit.  At $39
retail and $13 for the breaker it is a great value (as the second ps2dc
would have been an option BUT not the right price.  

Other suggested kluges (with fuses) would have worked - EXCEPT I think that
the GFI is (officially) not an over current device and is not designed to
protect wires.  William I think it can work as a disconnect (with a fuse for
protection).  I was erroneously told by an Outback tech support guy (not
Steve H) that the GFI had a 50 amp capacity.  This made no sense and I
checked and it is rated at 80 amps per channel.

Thanks all - problem solved!  

For a brighter energy future,

Geoff Greenfield
President
Third Sun Solar & Wind Power Ltd.
340 West State street, Unit 25
Athens, Ohio 45701
(740) 597-3111   fax: (740)597-1548
www.third-sun.com

Clean Energy - Expertly Installed


-----Original Message-----
From: RE-wrenches at topica.com [mailto:RE-wrenches at topica.com] 
Sent: Wednesday, April 25, 2007 7:03 AM
To: RE-wrenches at topica.com
Subject: Digest for RE-wrenches at topica.com, issue 2393


------------------------------

Date: Tue, 24 Apr 2007 14:34:55 -0700
From: "Allan Sindelar" <allan at positiveenergysolar.com>
Subject: Re: Breaker space in PS-2DC [RE-wrenches]



Geoff,
1. Add a Midnite MNPV-3 or -6 for additional breaker space.
2. Can you replace GF inverter breakers (175 or 250A) with smaller CD
breakers (100 or 125A)? That would free up a bit of space.
3. Combine the outputs on a single breaker, with individual supplemental
fuses on each controller.

Allan at PosE



Geoff:

I too, have toyed with the idea of using a GFI as input and output breakers 
for an MX60.  I see no reason why not other than you can not turn off the 
input and leave the output connected (except with the combiner).

Have you considered adding another PS2DC to the right, below or above the 
existing cabinet.  Connected with one or two 2" chase nipples, it is like a 
larger cabinet.

Two possible solutions for you.  Good luck.

William Miller


At 12:48 PM 4/24/2007, you wrote:

>The mx-60 could be current limited to 43 amps - what would you all say to
>using the gfi on both sides (prob no good as I think the gfi is not a
>current limiting device).  Maybe I could add a DC fuse inside to handle
that
>and just use the gfi as disconnect means.
>
>Other work around would be a kluged add on box to hold a DC breaker (or
>GFI).  Not clean, but do-able.
>
>This is rural and not inspected but our policy is to work safely and to the
>NEC (or to it's intent when we are the design review).
>
>Any suggestions would be appreciated!
>
>For a brighter energy future,
>
>Geoff Greenfield



------------------------------


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