[RE-wrenches] Microinverters with S-5-PV

Jason Szumlanski jason at fafcosolar.com
Tue Nov 26 11:29:59 PST 2013


Speaking of wire management with Enphase, has anyone gone through the
effort and expense of cutting module DC leads and installing new MC4
connectors on wires that are just long enough? I'm assuming this voids
module warranties, but I've never looked close enough to confirm.

Jason Szumlanski

Fafco Solar





On Tue, Nov 26, 2013 at 1:22 PM, Nick Soleil <nsoleil at enphaseenergy.com>wrote:

> Hi Jason,
>
> Using the S-5 mini clamps does work with our microinverters, but you do
> want to keep the microinverters off the roof.  Enphase recommends (in our
> manual) a 3/4" distance off the roof.  The microinverter can cause the
> seems to bend over, and inspectors may take issue if the microinverters get
> too close to the roof.
>
> If you use a taller S5 clamp, then the microinverter can run downhill,
> parallel to the seems.  In that case, the microinverter will sit on the
> seem, which we support 100%.
>
> Another issue is wire management, which you brought up already.  Clipping
> the cable to the module frames is a good practice.
>
> An additional fender washer is not required below the microinverter.
>
>
> On Tue, Nov 26, 2013 at 9:12 AM, Jason Szumlanski <jason at fafcosolar.com>wrote:
>
>> Does anyone see a problem (NEC/UL/physical) with mounting microinverters
>> to S-5 Mini clamps and mounting PV on S-5-PV Kits? The trunk cable could be
>> supported with clips on the module frames. Wire management could become a
>> bit difficult, but doable.
>>
>> This would be a pretty cost effective mounting method compared to rail
>> mounting, I think. The micro would not have much of a base to sit upon, but
>> maybe a fender washer between the clamp and the microinverter would be fine.
>>
>> Has anyone done this?
>>
>> Obviously AC modules work great in this scenario, but that's not always
>> what the customer wants...
>>
>> Jason Szumlanski
>> Fafco Solar
>>
>>
>>
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>
>
> --
>
> Cordially,
>
> *Nick Soleil*
>
>
> *Field Applications Engineer*
>
> *Enphase Energy*
>
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