600 VDC switches [RE-wrenches]

[Travis Creswell, Ozark Solar]

Hello Jeff,

I'll let you know.  The price is what has got me interested in CH as well. 
In my area Cutler Hammer devices are usually at least 1/2 the price of the
comparable Square D product.  The Cutler Hammer DH361URK is stocked at my
favorite distributor and costs me $102.  My Grainger book shows the
comparable Square D switch at $218.25 and the local stocking Square D
distributor would ask at least that for it, probably another 30% and
probably wouldn't even stock it.

Travis Creswell
Ozark Energy Services
----------
>From: Jeff Clearwater <clrwater at earthlink.net>
>To: RE-wrenches at topica.com
>Subject: Re: 600 VDC switches [RE-wrenches]
>Date: Tue, Feb 11, 2003, 12:53 PM
>

>Hi Travis,
>
>I used a Cutler Hammer 250VDC rated disconnect on my last job.  It 
>was only a 48 volt off-grid system but when I saw the 250 VDC rating 
>and the price was only $52 I also thought it warranted more research 
>for my next SB job.  Home Depot sells them!  (not that I like to 
>support them).
>
>Please let us know what you find out!
>
>Jeff C.
>
>
>>What can anyone tell me about the Cutler Hammer DH361URK for use with Sunny
>>Boy's?  It's a non-fused 3 pole 600 volt 30 amp Nema 3R safety switch.  My
>>local supplier sold it to me as a 600 VDC rated switch but the inside cover
>>says 250 volts.  I've asked him to contact CH about the DC rating if you
>>were to wire the three poles in series but have yet to hear back from them.
>>My application will have a Vmp of less than 300 volts and a Ocv of less than
>>400.  Is it safe to assume that wiring the 3 poles in series will increase
>>the DC rating of any non fusible switch that starts out with a DC rating of
>>250?
>>
>>
>>Thanks
>>Travis Creswell
>>Ozark Energy Services
>>
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>
>
>-- 
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Jeff Clearwater
>Ecovillage Design Associates - Whole Systems Design
>Community and Village Scale Renewable Energy & Water Systems
>
>Cell: 720-480-8455
>Office:  800-440-2523 (PIN-7071)
>Fax:  720-528-7813
>jeffc at ic.org
>
>2525 Arapahoe Ave.
>Boulder, CO 80302
>
>PO Box 2255
>Redway, CA 95560
>
>Council Member - Ecovillage Network of the Americas - http://www.ecovillage.org
>Advisory Board - Living Routes - Ecovillage Education - 
>http://www.livingroutes.org
>Founder:  Ecovillage Research, Development, and Demonstration Program:
>http://www.home.earthlink.net/~clrwater/RDD/rdd.html
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
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