Trace Charge Controller Ratings [RE-wrenches]

[Travis Creswell, Ozark Solar]

Hi William,

Wow, that sounds like a pretty ambitious amount of amperage.  You said you
were going to feed a battery bank?  Is that via a charge controller?  I'm
not second guessing, I'm just curious what it is you're doing.  When I've
done systems of any size, that require multiple charge controllers, it
always seems to work out pretty well to use one combiner per charge
controller then feed a common DC buss.

Travis




----------
>From: William Miller <wrmiller at slonet.org>
>To: RE-wrenches at topica.com
>Subject: Re:Trace Charge Controller Ratings [RE-wrenches]
>Date: Wed, Apr 24, 2002, 2:39 PM
>

>Colleagues:
>
>I am building a custom combiner.  I need to take the output of 5 PCB-10
>combiners and combine them to feed a battery bank.  In searching for
>Heinemann breakers I came across the Home Power article about high ampacity
>circuit protection (Over Current Protection for Battery Powered Systems,
>HP27-26.pdf).  I am still wondering how Trace gets away with using only the
>Heinemann breakers as primary protection. While the breakers are rated at
>25,000 AIC for DC circuits, who wants their equipment to handle that
>current for the delay time required to trip this breaker?
>
>The combiner I am designing will have a class T fuse behind the dead-front.
> I will route battery power through a Heinemann breaker to the class T
>fuse, using the breaker as a disconnect switch for fuse replacement.  The
>fuse will "back protect" the Heinemann breaker.  This concept is diagramed
>below in ASCII-CAD:
>
>Batt-----Heinemann----Class T-----Power distribution block------5 QOU
>breakers-----5 PCB-10----20 string arrays
>
>The lead between the Heinemann  and the fuse is no longer than 15 CM and
>both components are in the same enclosure.
>
>I appreciate any comments as to the suitability of the Heinemann breakers
>as utilized by Trace and on my design philosophy.
>
>William Miller
>
>

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