Holt,
It's OK. The Code sections that prevented putting batteries under BOS equipment have to do with working clearance. You must be able to walk up to the equipment to service it, and a large enclosure of flooded batteries prevents that.

GTWB systems use sealed batteries stacked in enclosures that are much shallower and don't prevent such access. If you look at Outback's PS1 or current successor, the breakers are all more or less in plane with the front of the battery enclosure, and thus compliant. Midnite enclosures, with the breakers on the sides, are not compliant, as Robin has acknowledged, but it has never been a problem for us as the breakers are still easy to access.

Allan Sindelar
Allan@positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com


On 10/22/2010 10:23 AM, [email protected] wrote:
Have grid-tie w/Battery back-up system under way. Due to changes beyond my control, I am now faced with the possibility of placing two MNBE cabinets underneath and to the side of inverter (Concorde batteries).  I had always avoided this practice but have choice of either that or very long cable runs of 30+ feet.
 
I could find nothing in 690 or 480 that states this placement is non-compliant. Did I give up too soon in my search?  
 
Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco TX. 76712
254-751-9111
www.holteksolar.com
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