[RE-wrenches] Reliable 48 to 24 V DC to DC reducer

Sat Sep 15 12:07:54 EDT 2018

I recommend Victron Energy DC/DC converters. They come with a 5 year
warranty.

[image: image.png]

Roberto Kruse
Sistemas de Energía
Costa Rica

El sáb., 15 sept. 2018 a las 9:44, Sindelar Solar (<Allan at sindelarsolar.com>)
escribió:

> 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.chamberlin at 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*
> allan at 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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-- 

*Ing Roberto Kruse Font* | *SERC – Costa Rica*| *roberto.kruse at sercsa.com
<roberto.kruse at sercsa.com>*
Tel (506)2273-4545 | Fax (506)2273-1010 | www.energiasolar.c
<http://www.sercsa.com/>r

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