[RE-wrenches] Little Rosie Breaker Box
Kent
kent at coveoregon.com
Sun Oct 12 09:53:44 PDT 2025
Ray,
The mobile version of the Little Rosie is listed to UL489 and UL1741 so
it can be used in residential applications as well as mobile
applications. The neutral bond switching makes particular sense for
using the Little Rosie with a portable generator, which is appropriate
for a small inverter.
Kent Osterberg
Blue Mountain Solar
On 10/11/2025 12:12 PM, Ray Walters via RE-wrenches wrote:
>
> Maybe I'm missing something, but I just skimmed through the manual,
> and it appears the Little RosieM is meant for mobile applications. It
> mentions an RE version for off grid, but I can't find that anywhere.
> The manual just discusses class T fuses, makes no mention of
> breakers. It looks like a cool inverter with a form factor similar to
> an old Trace DR, but not really seeing the usual matching Midnite BOS
> components we've come to expect. My guess is they're working on all
> of that for the RE version, which isn't quite ready.
>
> In the meantime, one of their E panel lites could be used. You'd have
> some exposed DC cable though, which seems to be the "IN" thing these
> days with many of the latest LiPO4 batteries.......:) Apparently, one
> man's code compliance is another man's unnecessary hangup........Also
> don't wire the neutral through the switched neutral relay in the
> inverter.
>
> Personally, I'd just wait for the RE version and the accompanying BOS
> to come out. Maybe a Victron in the meantime? Used Magnum on Flea
> Bay? The pickin's are slim for us poor off grid installers these days....
>
> Ray Walters
> Remote Solar
>
>
> On 10/11/2025 9:08 AM, Jeremy Rodriguez via RE-wrenches wrote:
>> Is the breaker box you mention anywhere on MidNite’s website ?
>>
>>
>> Jeremy Rodriguez
>> Solar Installation / Design
>> All Solar, Inc.
>> 1453 M St.
>> Penrose Colorado 81240
>>
>> Sent from Jeremy's iPhone.
>>
>>> On Oct 10, 2025, at 6:49 AM, William Bryce via RE-wrenches
>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>>
>>> The Little Rosie has a nice breaker box with plenty of room and
>>> options. But, the sheet metal is running behind from the US based
>>> manufacturer.
>>> Hopefully it will be available soon.
>>>
>>> On Thu, Oct 9, 2025 at 12:53 PM Nick Lucchese via RE-wrenches
>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>> Great, thank you Kent. I didn't realize the AC and DC terminals
>>> needed to be on top, I should have read the manual before
>>> asking. I can now see how the access door would be blocked if
>>> there were also a charge controller mounted on the door. I
>>> thought the Plus models were wider than the Lite but it appears
>>> my assumption was wrong. Seems it could still work if the
>>> controller were mounted off on the side of the chassis but for
>>> now I'll try to come up with a better plan. Lots of mice around
>>> here so I can see how your point of dropping "things" into the
>>> top ventilation slots could really be an issue.
>>>
>>> Assuming your generator is large enough are you finding that the
>>> 60 amp DC charger is working on a similar ratio as the VFX's 45
>>> amp charger?
>>>
>>> I appreciate your feedback!
>>>
>>> Nick
>>>
>>> On Wed, Oct 8, 2025 at 5:53 PM Kent via RE-wrenches
>>> <re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>> Nick,
>>>
>>> I recently looked into installing a Little Rosie on the door
>>> of an
>>> E-panel lite and decided against it. Just not enough room to
>>> get the
>>> battery cables connected. I ended up with the Little Rosie
>>> mounted
>>> vertically beside an E-panel lite. To tell you the truth I
>>> wasn't happy
>>> with the vertical installation of the little Rosie. Per the
>>> installation
>>> manual you are only allowed to mount it vertically in one
>>> orientation
>>> and that leaves the top of the Little Rosie at risk of
>>> dropping things
>>> into it through the ventilation slots.
>>>
>>> Kent Osterberg
>>> Blue Mountain Solar
>>>
>>>
>>> On 10/8/2025 4:18 PM, Nick Lucchese via RE-wrenches wrote:
>>> > Greetings Wrenches,
>>> >
>>> > Has anyone tried updating an Outback E-panel to
>>> accommodate a Midnite
>>> > Little Rosie yet? I'm still looking for ways to upgrade my
>>> VFX FXR
>>> > systems with 24v inverters without having to buy from the
>>> new owners
>>> > at Outback as well as solve battery communications and
>>> seems like a
>>> > Little Rosie is quite doable. I'm told I can get a blank
>>> door from
>>> > Midnite and appears that there are a few extra inches to
>>> spare
>>> > relating to the LR and E-panel length. Beyond that getting
>>> the AC and
>>> > DC conductors out of the LR through the E-panel door seems
>>> to be the
>>> > only sticking point. Possibly just modifying a 4x4 wireway
>>> gutter
>>> > would work.
>>> >
>>> > Thought perhaps one of you has already attempted this!
>>> Thanks for your
>>> > time, Nick
>>> >
>>> >
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