[RE-wrenches] Battery RSD

Tue Jul 29 10:21:52 PDT 2025

I know very little about Solark and happy about it. In the old days, 
Midnite and Schneider had a 10 dollar switch that would shut down the 
inverter from outside. When I had to use this it was great as I could 
just remove it after the bozo, I mean inspector left.

If he really wants a knife switch (the oldest of oldest ways to shut 
down all the way back to Edison.) Install one and deal with it later.

Good Luck !

Dave Angelini Offgrid Solar
"we go where powerlines don't"
    [6]https://offgridsolar1.com/ [7]  [6]
e-mail  offgridsolar at sti.net
text 209 813 0060

On 2025-07-29 9:45 am, MD Electric & Solar via RE-wrenches wrote:

> Wondering if Midnight solar makes something outdoor rated, with a 
> typical 250ADC breaker, like this:
> Outdoor rated, lockable....
> https://www.midnitesolar.com/productPhoto.php?product_ID=76&productCat_ID=8&sortOrder=5&act=p 
> [1]
> 
> On Tue, Jul 29, 2025 at 9:39 AM jay <jay.peltz at gmail.com> wrote:
> Maybe if you left the key on a chain to open the door, and placard with 
> instructions on the outside that would work?
> 
> On Jul 29, 2025, at 10:23 AM, MD Electric & Solar 
> <mdelectricsolar at gmail.com> wrote:
> 
> Correct, it does not have an external disconnect, but if you open the 
> cover, each battery has it's own disconnect and the Sol-Ark has a 
> battery disconnect.
> Looks like I'm in the market for a 100 amp rated outdoor, lockable DC 
> rated knife switch.
> Mike
> 
> On Tue, Jul 29, 2025 at 9:16 AM jay <jay.peltz at gmail.com> wrote:
> I had to look up that battery enclosure and if I understand correctly 
> it does not have an external breaker/disconnect so yes the inspector is 
> correct in the need for one if I understand.
> 
> jay
> 
> On Jul 29, 2025, at 10:09 AM, MD Electric & Solar 
> <mdelectricsolar at gmail.com> wrote:
> 
> Here is the reference, attached.
> 
> On Tue, Jul 29, 2025 at 8:49 AM jay <jay.peltz at gmail.com> wrote: I'll 
> let the code experts chime in, but I would ask for the code reference 
> they are referring to.
> 
> The only one I can think of has to do with if the batteries are on the 
> other side of a wall.
> 
> Thats as clean an install as they come
> 
> jay
> 
>> On Jul 29, 2025, at 9:43 AM, MDElectricSolar 
>> <mdelectricsolar at gmail.com> wrote:
>> 
>> <image0.jpeg>
>> Michael D Nelson
>> MD Electric & Solar, Inc.
>> 707-684-0064 mobile
>> 707-884-1862 office
>> www.mdelectricsolar.com [2]
>> www.facebook.com/mdelectricandsolar [3]
>> 
>> 
>>> On Jul 29, 2025, at 8:06 AM, Jay via RE-wrenches 
>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>> 
>>> What is the layout of the equipment
>>> 
>>> Are the batteries next to and therefore in sight of the inverter?
>>> 
>>> Jay
>>> 
>>>> On Jul 29, 2025, at 8:44 AM, MDElectricSolar via RE-wrenches 
>>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>>> 
>>>> Wrenches,
>>>> I have a building inspector in my county of Sonoma who has just told 
>>>> me that we need to install a rapid shutdown switch of some type 
>>>> between my LFZ battery bank and my Solark 15k inverter. He mentioned 
>>>> some type of knife switch within 5 feet of the equipment. I cannot 
>>>> find any reference to this requirement anywhere but he insists it is 
>>>> required. These batteries happen to be simplify or brakes and 
>>>> Stratton batteries and each battery has its own 80 amp breaker on 
>>>> the battery and the Solark has a battery disconnect switch built-in. 
>>>> We do have module level RSD which kills the solar output as well as 
>>>> the inverter output when the button is pushed. Does anyone have any 
>>>> experience with this or can they point me to the correct code 
>>>> section or what are others doing to comply with this requirement?
>>>> 
>>>> 
>>>> Michael D Nelson
>>>> MD Electric & Solar, Inc.
>>>> 707-684-0064 mobile
>>>> 707-884-1862 office
>>>> www.mdelectricsolar.com [2]
>>>> www.facebook.com/mdelectricandsolar [3]
>>>> 
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> 
> --
> 
> Michael D Nelson
> 
> MD Electric & Solar Inc.
> Office: 707-412-3181
> Cell: 707-684-0064
> www.mdelectricsolar.com [2]
> 
> www.facebook.com/mdelectricandsolar [3]
> 
> <PRMD BLD_20250728_062230.pdf>

   --

Michael D Nelson

MD Electric & Solar Inc.
Office: 707-412-3181
Cell: 707-684-0064
www.mdelectricsolar.com [2]

www.facebook.com/mdelectricandsolar [3]

   --

Michael D Nelson

MD Electric & Solar Inc.
Office: 707-412-3181
Cell: 707-684-0064
www.mdelectricsolar.com [2]

www.facebook.com/mdelectricandsolar [3]

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Links:
------
[1] 
https://www.midnitesolar.com/productPhoto.php?product_ID=76&productCat_ID=8&sortOrder=5&act=p
[2] http://www.mdelectricsolar.com/
[3] http://www.facebook.com/mdelectricandsolar
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[6] http://members.sti.net/offgridsolar/
[7] https://offgridsolar1.com/
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