[RE-wrenches] TL inverter with long DC Feeder

[jay peltz]

I do believe the outback and midnite combiners have a lock hole to prevent exactly your concern.
unauthorized access.

jay

peltz power
On Oct 6, 2014, at 11:40 AM, William Miller wrote:

> Wrenches:
>  
> We are getting up to speed on using transformer-less inverters.  I have advocated long for the additional safety offered by these inverters but I am realizing the trade-offs with the new technology:  The implementation gets more complicated with the requirement for PV wire, OCPD and disconnecting means for plus and minus and plus providing  Arc Flash rated equipment.
>  
> I am currently designing a system that will locate the PV about 400 feet from the residence.  The system will utilize 2 Solectria 5200 watt inverters at the residence.  I would like to provide disconnecting means for the 4 strings at the array, in case of any needed service or excavating.  Preferably I’d like the disconnecting means to be deployable by a lay person (i.e. the gardener).
>  
> Finding an 8 pole, arc flash, 600 VDC rated disconnect is not easy.  I could install an Outback 8 circuit combiner with 8 touch-safe fuse holders.  The new combiners have had dead-fronts for a while now.  The gardener needs only to have a Philips screw driver to open this cover.  Any better ideas out there?
>  
> Thanks,
>  
> William
>  
>  
> <image002.jpg>
> Lic 773985
> millersolar.com
> 805-438-5600
>  
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