[RE-wrenches] AC breakers used in DC applications

[Darryl Thayer]

I thought the Sq.D QO for sizes up to 60 amp was rated for DC?  and only the Square D  
Also why not use DC breakers? Robin makes some very small breaker boxes, and he alos has high voltage breakers,  (at least 250 volt? DC)
Darryl

--- On Thu, 5/13/10, William Miller <william at millersolar.com> wrote:

From: William Miller <william at millersolar.com>
Subject: Re: [RE-wrenches] AC breakers used in DC applications
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Date: Thursday, May 13, 2010, 7:18 PM


 
Bill:


I thought the rule of thumb was:  Don't do it.


William Miller





At 05:10 PM 5/13/2010, you wrote:

 

Fellow Wrenches,

 

Some time ago, Windy Dankoff had a rule of
thumb to substitute (conservatively) an AC breaker for use in a DC
application. 

 

Is anybody's memory, or perhaps even the old
dog himself; if he is listening, better than mine?

 

TIA,

 

Bill Loesch

Solar 1 - Saint Louis Solar

314 631 1094 

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