I did see a QO breaker fail to trip on a 24 volt DC system with only
battery voltage behind it. It burned a #12 wire completely in two.
The 48v is a max rating not a nominal rating.
So yes only good for 12 and 24v systems.
However with CBI breakers I don't understand why the need for QO for
DC anymore?
jay
peltz power
On May 15, 2010, at 6:28 AM, Rebekah Hren wrote:
Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
NABCEP TM Certified PV Installer
Office - 740-448-7328
Mobile - 740-856-9648
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