You could try one of these types, but our experience with switching high
voltage DC has not been good. Even in DC lines you can get spikes, which
take out the relay. I have seen 600 VDC ones die on 250 volt DC lines.
I would suggest he run a high voltage DC supply from the AC mains.
http://www.teledynerelays.com/industrial/s60dc40.asp
..................................................................................................
Northern Arizona Wind & Sun - Electricity From The Sun
----- Original Message -----
From: "Darryl Thayer" <[email protected]>
To: "RE-wrenches" <[email protected]>
Sent: Friday, January 23, 2009 4:05 PM
Subject: Re: [RE-wrenches] automatic DC switch
It seems to me this is a job for a solid state relay. But I have never
had to do 500 VDC if it were AC it would be fine.
Can you shut off the inverter reducing the DC to no load switching?
The frequency is also important.
Darryl
--- On Fri, 1/23/09, Dana Brandt <[email protected]> wrote:
From: Dana Brandt <[email protected]>
Subject: [RE-wrenches] automatic DC switch
To: "RE-wrenches" <[email protected]>
Date: Friday, January 23, 2009, 1:42 PM
Hi Wrenches,
I have a quirky project where I need to toggle PV DC
between grid-tie
inverters and an electrolyzer for a fuel cell system. Does
anyone know of a
good product to switch 10A, 500VDC? It needs to be
controlled remotely and I
need to switch 24 seperate circuits.
Thanks a lot!
Dana
--
Dana Brandt
Ecotech Energy Systems, LLC
www.ecotechenergy.com
[email protected]
360.510.0433
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