Looks like they use 24VDC for contactor activation, not 120VAC.
From: RE-wrenches [mailto:[email protected]] On Behalf Of Mark Frye Sent: Monday, February 02, 2015 1:29 PM To: RE-wrenches Subject: Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions OK. So did you run a line 120V up to the box on the roof to energize the coil of the relay up there? Mark Frye On 2/2/2015 9:13 AM, Jerry Shafer wrote: The units we have used have a large contactor inside the combiner box made by AMtec Solar. this was required to control the shut down includes a fire button done on the ground floor Jerry On Mon, Feb 2, 2015 at 5:49 AM, Mark Frye <[email protected]> wrote: Jerry, What unit did you use? Mark Frye On 2/2/2015 7:43 AM, Jerry Shafer wrote: Wrenches We have installed some of these rapid shut down units and they are always located close to the array and ours kill the DC instantly as long as the inverter was running when this accures did not test it with inverters already off. Jerry On Feb 2, 2015 5:34 AM, "Christopher Warfel" <[email protected]> wrote: We have a interpretation problem among some people I work with with, and 690.12 Rapid Shut Down and the the 10 second time for reducing ac and dc conductors to 240ma, and 30V. The word "initiation" seems to indicate that all affected conductors need to be at these levels within 10 seconds of de-energizing either the ac or dc conductors. If so, then the disconnects need to be co-located to meet this requirement if this interpretation is correct. I have read Mr. Brook's article in Solar Pro, but AHJs may feel differently. Would anyone care to weigh in on their interpretation? Thank you, Chris -- Christopher Warfel, President ENTECH Engineering, Inc. PO Box 871, Block Island, RI 02807 401-466-8978 _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
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