I believe midnite still has the remote trip DC PNL  mount breakers, but of 
course, no birdhouse to make it work.
Not sure what the trip trigger needs either as far as voltage.

-MNEDC250RT

Jeremy Rodriguez
Solar Installation / Design
All Solar, Inc.
1453 M St.
Penrose Colorado 81240

Sent by Jeremy's iPhone. Sorry for typos and shorthand.

On Jan 27, 2023, at 12:26 PM, William Miller via RE-wrenches 
<re-wrenches@lists.re-wrenches.org> wrote:


Friends:

We have a large-ish residential off-grid system install coming up.  The AHJ has 
said they will require a remote battery disconnect.  I suspect there will be 
fire sprinkler controls and a pressure pump that would become inoperable if 
this system were engaged.  In this case we will apply for a waiver.

The last time this was discussed here as far as I can find was October of 2020. 
 At that time no one suggested any specific battery disconnect equipment.

To further clarify my needs:  There will be 4 or 5 Radian 8048 inverters (5 or 
6 4/0 battery circuits, ~350A each) and two 175 amp PV recombiner outputs.  
That is 6 poles of high amperage DC disconnects.

The battery array will be either a UnigyII VRLA or a lithium of a brand yet to 
be determined.  In the case of lithium we will look for a system that can 
remotely enable a BMS shutdown.  In the case of a VRLA lead-acid, we will not 
have that luxury.

I have done some considerable research and have not found viable, high 
amperage, remotely activated shutdown equipment.

I am wondering what hardware others may be using to achieve remote battery 
disconnecting in these types of cases..

William

Miller Solar
17395 Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com<http://www.millersolar.com/>
CA Lic. 773985


_______________________________________________
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

_______________________________________________
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Reply via email to