I plan to install a grid tied system using Outback inverters on E-Panels and a charge controller. Equipment to be installed inside an exterior garage with a 48 volt battery bank of FLA batteries in a battery box on a slab on the outside of the garage. This installation is located in Florida, so no possibility of freezing. To comply with NEC 690.71(H) I must have the 48 Volt battery bank switched at the equipment and the source as well as the source being fused. I could have a 125 amp breaker(Midnite Solar MNEDC-125) that would satisfy the switch & fuse but there is no NEMA-3R enclosure available for that breaker. Blue Sea battery switches do not meet code for residential applications, they are for marine use. What can I use to switch 48V @ 125 amp in a NEMA-3R enclosure? here is the code:http://www.jade1.com/jadecc/courses/UNIVERSAL/NEC05.php?imDif=790.0
Hi SS,
Have you looked at the MNDC boxes?
http://www.midnitesolar.com/productPhoto.php?product_ID=74&productCatName=Mini DC Disconnect&productCat_ID=8&sortOrder=3&act=pc (http://www.midnitesolar.com/productPhoto.php?product_ID=74&productCatName=Mini %20DC%20Disconnect&productCat_ID=8&sortOrder=3&act=pc)
Doug
Thanks Doug, but those are for interior use, I need something rated for exterior.