While not as inexpensive as David's solution, I have used Mean Well
converters with success. This manufacturer supplied the DC-DC step-down
converters used by Wattsun for their tracker drives, so there's a pretty
long history with them. Check out
https://www.trcelectronics.com/View/Mean-Well/RSD-200C-48.shtml.
Allan
On 9/15/2018 9:31 AM, David Katz wrote:
I have had great luck using cheap LED drivers. They say 110-240 vac
input but they rectify the input to DC. I have used them to run 12 and
24 volt stuff off of 48 vdc and even 400 vdc. They operate down to
about 35 volts dc. They are available in a variety of output voltage
and current. And they are isolated. And they only cost a few dollars.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F152134115704
David Katz
On Sat, Sep 15, 2018 at 7:58 AM Drake
<drake.chamber...@redwoodalliance.org
<mailto:drake.chamber...@redwoodalliance.org>> wrote:
Since Solar Converters seems to have evaporated, I'm not sure
where to look for a 48 to 24 V DC to DC converter. Samlex has 24
to 12. It seems like someone mentioned a Canadian company that
makes these.
I need to step down power from a 48 V battery bank to power El Sid
pumps for an offgrid hydronic heating system.
Thanks,
Drake
Drake Chamberlin
/Athens Electric LLC
OH License 44810
CO License 3773
NABCEP Certified Solar PV
740-448-7328
/http://athens-electric.com/
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*Allan Sindelar*
al...@sindelarsolar.com <mailto:al...@sindelarsolar.com>
NABCEP Certified PV Installation Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
*505 780-2738 cell*
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