[RE-wrenches] Square D 225A load center

[Peter Parrish]

I think that the calculation goes as follows:

 

(1) For residential PV systems, the bus can fed at 120% of its rated value:
1.2*225A=270A

(2) The main breaker limits the feed from the utility to 200A

(3) This leaves 70A for the PV system

 

- Peter

 

Peter T. Parrish, Ph.D., President
California Solar Engineering, Inc.
820 Cynthia Ave., Los Angeles, CA 90065
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
CA Lic. 854779, NABCEP Cert. 031806-26
peter.parrish at calsolareng.com 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Christopher
Freitas
Sent: Thursday, December 04, 2008 2:51 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Square D 225A load center

 

Ahhh - I think I get it - you get the 20% of the 200 amps (so 40 amps) + the
extra 25 amps because the buss is only running at 200 amps?

 

I just saw you emailed me.  

 

Christopher

 

 

Christopher Freitas

Director of Research and Development 

OutBack Power Systems, Inc.

 <mailto:cfreitas at outbackpower.com> cfreitas at outbackpower.com

Tel 360 435 6030

Cell 360 202 4239

19009 62nd Ave NE 

Arlington WA 98223 USA

 <http://www.outbackpower.com/> www.outbackpower.com

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of David
Brearley
Sent: Thursday, December 04, 2008 11:41 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Square D 225A load center

 

It has an option for a factory-installed 200A main breaker.


On 12/4/08 12:31 PM, "Christopher Freitas" <cfreitas at outbackpower.com>
wrote:

How does the 225 amp rating make it ideal for 60 amp breakers?  20% of 225
amps is 45 amps - and even with "rounding up" it only gets you to 50 amps.  
 

Christopher

 
Christopher Freitas
Director of Research and Development 
OutBack Power Systems, Inc.
cfreitas at outbackpower.com  <mailto:cfreitas at outbackpower.com>
<mailto:cfreitas at outbackpower.com> 
Tel 360 435 6030
Cell 360 202 4239
19009 62nd Ave NE 
Arlington WA 98223 USA
www.outbackpower.com  <http://www.outbackpower.com/>
<http://www.outbackpower.com/> 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org]
<mailto:re-wrenches-bounces at lists.re-wrenches.org%5d>  On Behalf Of Andrew
Truitt
Sent: Thursday, December 04, 2008 8:33 AM
To: RE-wrenches
Subject: [RE-wrenches] Square D 225A load center




Greetings all!  I heard that Square D makes a load center with a 225A buss
bar and a 200A main breaker - ideal for installing 60A of solar
interconnection breakers.  Does anyone have a part number (or any other
info) on this item?

Thanks!


Andrew Truitt
Standard Solar

 

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