[RE-wrenches] 208 V 240 in residential applications

[Chris Mason]

Yes, no problem. Lots of commercial installations are 208.

Chris Mason
Comet Systems
Anguilla (264) 235-5670
St. Kitts  (869) 662-5670
skype netconcepts

NABCEP Certified Solar PV Installer(tm)
Renewable Energy Systems professional
Generac Generators Factory technician
On Feb 9, 2014 4:20 PM, <william at millersolar.com> wrote:

> Friends:
>
>
>
> I feel sort of stupid asking this, but it has never come up for me before:
>
>
>
> I have inherited an off-grid install gone-wrong.  The system is 208 three
> phase with Sunny Boys and Sunny Islands on a mini grid.  It was designed as
> three phase.  I presume this was to increase capability with stacked SMA
> inverters.
>
>
>
> Will the household appliances (small cooktop, booster pump, well pump) run
> as well on 208 as 240?
>
>
>
> I always do my research before wasting all of your time.  The web
> delivered a lot of "forums" wherein opinions were expressed, but little
> hard data from bona fide professionals.  I also did some calculations, see
> below.  I downloaded a manual from a random electric range and saw it was
> specified as 240 or 208.
>
>
>
> Watts
>
> 4000
>
>
>
>
>
>
>
>
>
> Volts
>
> 240
>
> 208
>
> Amps
>
> 16.67
>
> 19.23
>
> % Difference in amps
>
> 13.33%
>
>
>
>
>
> I am fairly comfortable that this is not an issue, but would like some
> confirmation.  Thanks in advance.
>
>
>
> William
>
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