Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-15-2020, 07:10 AM   #1
3 Rivet Member
 
2019 28' Flying Cloud
Dripping Springs , Texas
Join Date: Dec 2019
Posts: 217
DIY Solar Combiner Box

I'm planning on pulling my Zamp combiner since there seems to be trouble with it (short circuit, grounding, wire chafing - don't know yet since I haven't pulled it.) I will need a replacement.

Hoping to go camping tomorrow so I need it NOW. I know everyone uses the AM Solar box but it seems I can make my own.

Bought these strain relief cable glands, they have a rubber grommet that squeezes down when the nut is tightened: $2.50
https://www.homedepot.com/p/Halex-1-...7693/202077093





2-gang weatherproof PVC box, comes with threaded entry points for the cable glands. Drill out only what you need, the rest are sealed. $9.50


https://www.homedepot.com/p/Carlon-2...82DE/202203329




And a bus, I'll cut it in half for the positive/negative sides, $5
https://www.homedepot.com/p/GE-Power...24CP/202046208





Questions:
- Do I need anything else in there? A fuse or breaker?
- How shall I mount this thing? Was planning on putting it upside down and sealing with sikaflex all around. In that case I would cut off those little mounting ears.

- It also comes with a lid, has a rubber gasket. I could leave it off if putting the box upside down, or put it on then put it upside down, or put it on and mount it 'right side up.' In the latter case I worry about water eventually getting into the box, the lid doesn't have a lip or any kind.



Thanks
__________________

Kalashnikov is online now   Reply With Quote
Old 03-15-2020, 07:37 AM   #2
3 Rivet Member
 
Chelsea , Maine
Join Date: Aug 2016
Posts: 235
I would use the gasket and mount it right side up.
If you need to open it later, having it upside down will add difficulty to an otherwise easy task.
If you’re worried about moisture getting in, put some of your sikaflex on the gasket and screws.
__________________

__________________
2017 FC 27FB
2017 F250 Lariat Crew Cab 6.2L
Equal-I-Zer 10K/1000
JMynes is offline   Reply With Quote
Old 03-15-2020, 07:38 AM   #3
Overkill Specialist
Commercial Member
 
GMFL's Avatar

 
2014 23' International
Dadeville , Alabama
Join Date: Oct 2015
Posts: 3,729
Images: 4
Blog Entries: 52
You need to make sure your bus bars are securely attached to a NON conductive surface and not through the back of the box.
Attached Thumbnails
Click image for larger version

Name:	0F7C1A06-D355-43A6-B29D-18F3047A304A.jpg
Views:	7
Size:	166.8 KB
ID:	363298  
GMFL is offline   Reply With Quote
Old 03-18-2020, 04:00 AM   #4
3 Rivet Member
 
2019 28' Flying Cloud
Dripping Springs , Texas
Join Date: Dec 2019
Posts: 217
Ended up finding a local solar supply company! They didn't have any "combiner" boxes but they did have junction boxes. Turns out they are really one and the same. They also sold nice cable glands so I built my own. There are two pieces of bus bar inside mounted to a small wood base ($5 from HD for the long section of bar.)


The box has a great lid, there are little tabs that swivel to allow access.

(that conduit and PVC pipe attach to my rooftop vent pipe...)




Kalashnikov is online now   Reply With Quote
Old 03-18-2020, 08:40 AM   #5
Rivet Master
 
gator.bigfoot's Avatar
 
2007 30' Classic
KW , Ontario
Join Date: May 2012
Posts: 536
If your using those ground bars for a common junction and you are also using heavier wire to feed back the larger wire may not fit into the bar. They do sell clips that you can insert into 2 of those common juction bars that will take a larger wire. I bought them from HD when I was in the states last year, as in Canada the big box stores don't carry them. But most electric supply stores should have.

https://www.homedepot.com/p/GE-Power...20CP/100153918
gator.bigfoot is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Roof Hole for combiner box wponder Electrical - Systems, Generators, Batteries & Solar 15 03-25-2018 12:24 AM
Solar Panel Combiner Box davidz71 Generators & Solar Power 4 05-26-2007 11:52 AM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 06:43 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.