Missing Junction boxes on modules[RE-wrenches]

[John Raynes]

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It's my understanding that the 2008 NEC will require all conductors to 
be in conduit if the array is readily accessible (i.e., ground mount 
and not fenced off or barricaded in some manner).

Hopefully this will give some impetus to manufacturers to make some 
more J-Box offerings available.  More realistically, I think it will 
take a combination of stricter code/inspection requirements, and a 
solar panel market that is no longer supply-constrained.  As long as 
panel manufacturers can sell everything as fast as they can make it, 
most of them figure why bother for now.

We're finding Kyocera KC130TM J-Box modules available at reasonable 
prices through a couple of sources this season, and are using them 
where it makes sense.  We're also becoming increasingly curious about 
the Photowatts for this reason, and for the fact that they provide 
12/24 volt models, much better suited for our off-grid work.  The 
problem with the Photowatts is that they're not readily available 
through normal distribution channels to my knowledge, which means 
entering into a purchase agreement with Photowatt directly with 
guaranteed volumes.  Do any wrenches know more about the supply 
situation with Photowatt, or have experience with using them in 
systems?  I think that some of their models are not UL listed but 
others are.


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