Over current protection for charge controllers [RE-wrenches]

[Doug Pratt]

Your C-40 input is wired thru a *30*amp breaker? Are you sure? Trace
lists the C-40 option on the Power Panel as coming prewired with a
*60*amp breaker. http://www.xantrex.com/products/product.asp?did=253&p=4

They don't even offer a 30-amp breaker option, just 15, 20, or 60. If
you've really got a 30-amp input breaker, somebody goofed.

Cheers,
Doug Pratt


-----Original Message-----
From: William Miller [mailto:wrmiller at slonet.org] 
Sent: Friday, May 09, 2003 2:20 PM
To: RE-wrenches at topica.com
Subject: Over current protection for charge controllers [RE-wrenches]

Friends:

I know this has been covered before, but in a different context.  I am
installing a Xantrex Integrated Power Panel.  It has one C-40 charge
controller. The battery positive lead connects to the bottom of the
GJ250
circuit breaker.  The top of the breaker connects to the inverter AND to
the C-40.  Shouldn't the C-40 have over current protection of a lower
value?  It is protected now at 250 amps.  I figure it needs to be about
60
amps (40*1.56=62.4).

Also, Xantrex prewires the C-40 input through a 30 amp DC breaker.  This
is
not right either, to my knowledge.  That breaker should also be 60 amps.

I don't know if we have a Xantrex rep. on the list anymore.  I hear
Pagan
is gone, and, as I recall, Ezra also.  It would be nice if Xantrex
responded, but I of course value input from the rest of you
installer/engneers.

Thanks,

William Miller

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