Hi William,

I wanted to let you know that currently, there is no bypass terminal to allow 
for combining at the array in this series of inverters. We have gotten a lot of 
feedback from customers that this is a required feature. Working toward that, 
in the next few months, we will phase into production an update that will 
include a bypass, but the existing stock does not have the feature.

I wanted to let you know so you could plan appropriately.

Best,
Mike

Michael Kelly
[Solectria_Yaskawa_signature_logo]<http://www.solectria.com/>
HQ: 360 Merrimack Street, Bldg 9, Fl 2, Entrance I, Lawrence, MA 01843 USA
O: +1 978-683-9700 x167 | F: +1 978-683-9702
[email protected]<mailto:[email protected]> | 
www.solectria.com<http://www.solectria.com/>

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From: RE-wrenches [mailto:[email protected]] On Behalf 
Of William Miller
Sent: Monday, October 6, 2014 14:40
To: RE-wrenches
Subject: [RE-wrenches] TL inverter with long DC Feeder

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


[Gradient Cap_mini]
Lic 773985
millersolar.com<http://www.millersolar.com/>
805-438-5600

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