[RE-wrenches] generic and simple AC transfer switch

[Jerry Shafer]

Kohler makes ATS's that l use for A/C coupled battery back up systems

On Sat, Mar 1, 2025, 8:42 AM Lou Russo via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> 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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