[RE-wrenches] generic and simple AC transfer switch

[Lou Russo]

If you don't need a UL listed unit you just use Generac Part number 0L2911.
We have not used it in the field but we did test in the shop and did the
job. Mount it in a Hoffman type box on a backplane and off you go.

William, that RDT unit looks nice, could you email me the manual as
well, off-list ? Thank you.

Aloha,

Lou Russo
Owner
lou at spreesolarsystems.com
Office - 808 345 6762
Spree Solar Systems LLC
CT-34322



On Sat, Mar 1, 2025 at 6:32 AM Kirk Herander via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Hi,
>
> Yes and thanks! Please email off-list.
>
> *Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*
>
> *Owner|Principal, VT Solar, LLC*
>
> *Celebrating our 34st Anniversary 1991-2025!!*
>
> dba Vermont Solar Engineering
>
> 802.559.1225
>
>
> On Sat, Mar 1, 2025 at 11:22 AM William Miller via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Kirk:
>>
>> I recently installed a Kohler RDT transfer switch that does exactly what
>> you specified. The RDT is an AC-Seeking ATS. There is an option to create a
>> contact closure upon failure of the primary AC input.
>>
>> Even though the device is Kohler branded it has no proprietary
>> connections to the genset- it is generator agnostic.
>>
>> The unit comes in several standard sizes. It can be ordered as service
>> equipment and with or without on-board distribution. It’s a nice piece of
>> kit.
>>
>> I can send the manual if you’d like.
>>
>> William Miller
>> Miller Solar.com
>> 805-438-5600
>> www.millersolar.com
>>
>>
>> On Sat, Mar 1, 2025 at 7:03 AM Kirk Herander via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> Hello All,
>>>
>>> I am looking for a non-generator brand specific 100A  ATS to switch to
>>> secondary power when the utility goes out, period. IMO this means the
>>> contactor coil would have to be controlled
>>> by the utility AC, either 120 or 240,. If utility fails, the contactor
>>> switches to N/C secondary power. No outside control signals required.
>>> Thanks in advance.
>>>
>>> --
>>>
>>> *Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*
>>>
>>> *Owner|Principal, VT Solar, LLC*
>>>
>>> *Celebrating our 34st Anniversary 1991-2025!!*
>>>
>>> dba Vermont Solar Engineering
>>>
>>> 802.559.1225
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