Allan,
Square D makes 2-, 3-, and 4-pole models from 30 amps to 1200 amps that are 600Vdc rated. They have by far the most selection of any company at the moment. The 200-Amp and up versions must pass through two poles of the same switch. I'm using 3, 2-pole 600A units on 500 kW inverters at the moment. It all depends on the layout of your combiner boxes. Let me know when you are ready to do some design work. It ain't residential. Bill. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar Sent: Monday, April 12, 2010 4:30 PM To: August Goers Cc: RE-wrenches Subject: Re: [RE-wrenches] 600VDC Safety Switch question August, Precisely. And it's a dumb idea, I know. But it's part of a utility-scale RFP, and it specifically calls out switching the DC input. This is too early a stage in the process to figure out better approaches; first we have to qualify for the job. Surprisingly, Boltswitch makes one, and it's cheaper than SqD. So we may have found an answer, but I'm still listening for other ideas. Thank you, Allan Allan Sindelar <mailto:al...@positiveenergysolar.com> al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 <http://www.positiveenergysolar.com/> www.positiveenergysolar.com August Goers wrote: Allan - What is the application? Are you trying to switch a large PV array before the inverter but after the strings have been fused and combined? -August August Goers Luminalt Energy Corporation O: 415.564.7652 M: 415.559.1525 F: 650.244.9167 <http://www.luminalt.com/> www.luminalt.com _____ From: <mailto:re-wrenches-boun...@lists.re-wrenches.org> re-wrenches-boun...@lists.re-wrenches.org [ <mailto:re-wrenches-boun...@lists.re-wrenches.org> re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Allan Sindelar [ <mailto:al...@positiveenergysolar.com> al...@positiveenergysolar.com] Sent: Monday, April 12, 2010 12:41 PM To: RE-wrenches Subject: [RE-wrenches] 600VDC Safety Switch question Wrenches, We need recommendation of a 200A or larger (400A or 600A preferred) two-pole or three-pole, double-throw, 600VDC rated, manually operated, load-break- and load-make-rated, service-equipment rated, fusible or nonfusible safety switch for purposes of switching DC input. Square D 82345R and H82345 are rated only 250VDC in a fine-print note in their catalog. I don't think that what I'm asking for exists, but wiser Wrenches may prevail. Can anyone suggest another brand and product model that meets these requirements? Thank you, Allan -- Allan Sindelar <mailto:al...@positiveenergysolar.com> al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 <http://www.positiveenergysolar.com/> www.positiveenergysolar.com
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