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Hi Nick,<br><br>
That is very good news. I just hit the wall trying to find 2 pole solid
state N/C relays. I was trying to decide whether to go back to
mechanical or buy double the amount of single pole relays. <br><br>
Thanks,<br><br>
Drake <br><br>
At 11:20 AM 8/28/2017, you wrote:<br>
<blockquote type=cite class=cite cite="">Content-Language: en-US<br>
Content-Type: multipart/alternative;<br>
<x-tab> </x-tab>
boundary="_000_56449940CA694DDAABB811FCC45A2070enphaseenergycom_"<br>
<br>
You can use a one-pole relay. We show one-pole switching in our
zero-export, self-consumption doc for PEL applications.<br><br>
Nick Soleil <br>
Field Application Engineer<br>
Enphase Energy<br>
Cell: 707-321-2937<br><br>
On Aug 28, 2017, at 6:44 AM, Drake
<<a href="mailto:drake.chamberlin@redwoodalliance.org">
drake.chamberlin@redwoodalliance.org</a>> wrote:<br><br>
<blockquote type=cite class=cite cite="">Hello Wrenches,<br><br>
I am going to AC couple some Enphase inverters and found some really nice
solid state, single pole relays to control them with. Enphase says I must
use 2 pole relays for the control current even though the disconnects
will turn off all power for maintenance. <br><br>
Enphase claims that the inverters will not shut down reliably with only
one line opened. This does not make sense to me in view of UL 1741. Is
Enphase correct in their claim, or are there other reasons that both
poles need to be opened <br><br>
I want to use the solid state relays because the coil voltage is between
3 and 32 volts. This would avoid the need to add voltage dropping series
resistors to protect the coil for higher battery voltages.<br><br>
Alternatively, does anyone know of reasonably priced, 2 pole solid state
relays?<br><br>
Thanks,<br><br>
Drake <br><br>
<br>
Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
740-448-7328<br><br>
</i>_______________________________________________<br>
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