Automatic DC transfer Switch
Automatic DC transfer Switch
(OP)
Dear Friends,
Does anybody know of a manufacturer of Automatic Dc Transfer switch capable of switching 150A at 125VDC?
I have called places I know like eaton they don't have it..
Thanks
Does anybody know of a manufacturer of Automatic Dc Transfer switch capable of switching 150A at 125VDC?
I have called places I know like eaton they don't have it..
Thanks






RE: Automatic DC transfer Switch
RE: Automatic DC transfer Switch
Two source of supply and one load.In case of losing one source the switch with atumaticcally transfer the load to the other source...
RE: Automatic DC transfer Switch
RE: Automatic DC transfer Switch
The alternative might be a bar and shaft type contactor with a combination of NO and NC poles providing the changeover, or a pair of contactors switched in antiphase. ABB's R-Line is one such type, with similar products being available from Telemechanique, Siemens, Hubbell, etc. DC contactors are minority interest products and are therefore expensive compared to an AC contactor of equivalent rating. They're available up to at least 1500V and 6000A, although the choice of suppliers is more limited at these high ratings.
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I don't suffer from insanity. I enjoy it...
RE: Automatic DC transfer Switch
I am mainly looking for an assembelled package rather than making one with diods.
RE: Automatic DC transfer Switch
Don't forget that most MCCBs primarily designed for AC service have a limited DC rating, and a standard AC transfer switch power circuit (MCCB, busbars, terminals, enclosure) might be suitable for DC service, depending largely on the nature of your load. The major limitations on MCCBs in DC service are: they're usually confined to loads with little or no inductance; their DC voltage rating is much lower than for AC duty - you may need multiple poles in series; and only true thermal-mag or pure mag MCCBs will work correctly. Self-powered electronic tripping modules don't work on DC.
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I don't suffer from insanity. I enjoy it...
RE: Automatic DC transfer Switch
Rated @ 475A all day long. Peak reverse voltage: 3,000V
Peak current 7,800A.
Trying to match this with a relay.. No comparison.
http://w
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Automatic DC transfer Switch
ASCO Power Technologies
50 Hanover Road
Florham Park, NJ 07932
Phone: 1-800-800-ASCO (2726)
Fax: 1-973-966-5709
http://www.asco.com
or Russelectric:
781-749-6000
Mike Faulkner
Purchasing Manager
mfaulkne@russelectric.com
even though they don't specifically list DC in their literature.
RE: Automatic DC transfer Switch
ASCO got it.