[RE-wrenches] shunt trip breaker with outdoor disconnect offgrid

Thu Aug 13 16:09:05 EDT 2020

LG only sell the high voltage (400dc) in North America. The LG 48vdc was
a failure.  

Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridsolar at sti.net
[2]
text 209 813 0060

On Thu, 13 Aug 2020 13:41:57 -0600, Ray  wrote:   

What voltage LG battery? Midnight has large (100, 175, 250 A) DC shunt
trip breakers that are 125 v rated. They also have 15 and 20 A 600 V rated
remote trip breakers. 
Ray Walters
Remote Solar
303 505-8760
 On 8/13/20
1:06 PM, Kirk Herander, VT Solar, LLC wrote:  You would need a shunt trip
rated @600vdc , 25 amps I'm guessing. A DC rated contactor might be better,
but where to find either? And what control voltage will the ST or contactor
use? I assume its grid-tie if an AHJ is involved. The LG RESU would also
require both pos and neg be switched off (ungrounded neg) for code
compliance. You are probably best off running the battery leads outside to
a 600vdc dp safety switch. And then back it's only 10 ga, wire back and
forth.

KIRK HERANDER /  

OWNER|PRINCIPAL, VT SOLAR, LLC 

_CELEBRATING
OUR 29TH ANNIVERSARY 1991-2020_ 

WWW.VERMONT.SOLAR [3] 

dba Vermont Solar
Engineering 

802.863.1202   

On 8/13/2020 2:08:33 PM, Jerry Shafer  [4]
wrote:  Wrenches Very interesting, l have a JHA that is requiring a shunt
trip for the LG battery, any ideas here Jerry  
  On Thu, Aug 13, 2020,
11:01 AM Kirk Herander, VT Solar, LLC  wrote:  Hello, Any of you ever use a
120vac-enabled shunt trip breaker on the inverter output at the main load
panel, and have it controlled by a small AC disconnect switch outside? I
say offgrid because I doubt any utility would grid-tie approve as an
outdoor disco, it since it does not visibly open the inverter output power
wires.   But it wound save in round-trip inverter wiring outside and back
in to the load center, and perhaps a big AC outdoor disco in larger
systems.

KIRK HERANDER /  

OWNER|PRINCIPAL, VT SOLAR, LLC 

_CELEBRATING
OUR 29TH ANNIVERSARY 1991-2020_ 

WWW.VERMONT.SOLAR [6] 

dba Vermont Solar
Engineering 

802.863.1202   
_______________________________________________
 List sponsored by Redwood
Alliance

 List Address: RE-wrenches at lists.re-wrenches.org [7]

 Change
listserver email address & settings:

http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [8]

List-Archive:
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [9]

List rules & etiquette:
 www.re-wrenches.org/etiquette.htm [10]

 Check out
or update participant bios:
 www.members.re-wrenches.org [11]

_______________________________________________ List sponsored by Redwood
Alliance List Address: RE-wrenches at lists.re-wrenches.org [12] Change
listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [13]
List-Archive:
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [14]
List rules & etiquette: www.re-wrenches.org/etiquette.htm [15] Check out or
update participant bios: www.members.re-wrenches.org [16]   

_______________________________________________
List sponsored by Redwood
Alliance

List Address: RE-wrenches at lists.re-wrenches.org [17]

Change
listserver email address &
settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[18]

List-Archive:
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
[19]

List rules & etiquette:
www.re-wrenches.org/etiquette.htm [20]

Check
out or update participant bios:
www.members.re-wrenches.org [21]

Links:
------
[1] http://members.sti.net/offgridsolar/
[2]
mailto:offgridsolar at sti.net
[3]
https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0
[4]
mailto:jerrysgarage01 at gmail.com
[5] mailto:vtsolar at icloud.com
[6]
https://nam02.safelinks.protection.outlook.com/?url=www.vermontsolarnow.com&data=02%7C01%7C%7C9f0330d75a244870112408d685311841%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636842843233477645&sdata=0NjyuKeQbEK6245SNnk8X4XnP9Q%2B%2BqtvcALkdDghvk4%3D&reserved=0
[7]
mailto:RE-wrenches at lists.re-wrenches.org
[8]
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[9]
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
[10]
http://www.re-wrenches.org/etiquette.htm
[11]
http://www.members.re-wrenches.org
[12]
mailto:RE-wrenches at lists.re-wrenches.org
[13]
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[14]
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
[15]
http://www.re-wrenches.org/etiquette.htm
[16]
http://www.members.re-wrenches.org
[17]
mailto:RE-wrenches at lists.re-wrenches.org
[18]
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[19]
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
[20]
http://www.re-wrenches.org/etiquette.htm
[21]
http://www.members.re-wrenches.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20200813/3175a479/attachment.htm>