[RE-wrenches] Pass through/transition box for Enphase

[Mike Nelson]

I have been using buchannon copper crimps with their plastic snap on "wire nuts" for years to splice rooftop wires (enphase or pv wire to string inverter) inside junction boxes or soladecks. Best connection you can have and I've never had one come loose or melt down.

Michael D Nelson
MD Electric & Solar, Inc.
707-684-0064 mobile
707-884-1862 office
www.mdelectricsolar.com
Sent from my iPhone

> On Aug 9, 2016, at 11:03 PM, Ray Walters <ray at solarray.com> wrote:
> 
> I think the issue has always been locating the right parts, not the installation.  Everyone carries the Cobra X flex, but not the ferrules. We usually crimp lugs on and use breakers with stud terminals, so the need for ferrules is minimal. 
>  I have always wondered about the terminal bussbars from Outback and Midnite though.  They're ILSCO and I can't find any mention about     extra flex, which usually means they are not rated for anything beyond Class B stranding.
> 
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer, 
> Licensed Master Electrician
> Solar Design Engineer
> 303 505-8760
>> On 8/8/2016 9:54 PM, Jay wrote:
>> Thimbles are easy to install and make fine strand wire OK for use in standard connections. 
>> 
>> Jay
>> Peltz power. 
>> 
>> On Aug 8, 2016, at 5:39 PM, Glenn Burt <glenn.burt at glbcc.com> wrote:
>> 
>>> Be aware that depending upon the vintage of the Engage cable, up to recently the conductors used in their cables are fine stranded and cannot be used in the terminal blocks provided with the Soladeck. 
>>> This has been acknowledged by Enphase with a revision to their Engage manufacturing spec, and by Soladeck to me in writing. One fix is to confirm the date of manufacturer of the Engage cable ( much of the fine strand version remains in distribution). Another is to source appropriate ferrules to be crimped onto the fine stranded conductors before using them in the standard Soladeck terminals.
>>> 
>>> Also beware of the same issue if you are splicing with these older Engage cables. Most screw terminals like Polaris are also not listed for use with fine stranded conductors. NSI has a special Polaris terminal that is grey that is listed for use with fine stranding, and can safely be used.
>>> I saw a few incorrect Polaris blocks pulled from an installation recently that had melted...
>>> From: Michael Morningstar
>>> Sent: ‎8/‎8/‎2016 15:23
>>> To: RE-wrenches
>>> Subject: Re: [RE-wrenches] Pass through/transition box for Enphase
>>> 
>>> I use DIN rail mount "feed through" terminal blocks. There's all kinds and you will find some constructed such that no live parts exposed.
>>> Michael
>>> 
>>> On Aug 8, 2016, at 8:49 AM, Jason Szumlanski <jason at floridasolardesigngroup.com> wrote:
>>> 
>>>> I'm looking to bring 8 Enphase 240V circuits in multiple conduits into an enclosure inside the attic where I can transition to Romex. I'd rather use some kind of rail mounted terminals in an enclosure or something rather than making splices in a generic j-box. I'm not looking to combine circuits - just transition from THWN to Romex and keep things neat an organized.
>>>> 
>>>> Any suggestions?
>>>> 
>>>> Jason Szumlanski
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