Q-Dog
¯\_(ツ)_/¯
The standoffs are not an issue, but if the buss bars are brass instead of the nickel plated copper in their sales info, you need to give them a call.
Cabinet busbars and standoffs
- Thread starter Urge38
- Start date
perhaps Ben@fogstar might wish to comment via this thread, as he is on our forum.
Help us design a rack-mounted system for the UK
one just now,its money side of things for now,just wanted to see if that fills up first along with usual loads from house then get another!
diysolarforum.com
I will be giving them a email directly, only my last email to Fogstar regarding battery paramotors got ignored.
a little bit frustrating seeing as ive spent over £4.5 grand with this firm in the uk (Fogstar)
What are the dimensions of the busbar?perhaps Ben@fogstar might wish to comment via this thread, as he is on our forum.
Help us design a rack-mounted system for the UK
one just now,its money side of things for now,just wanted to see if that fills up first along with usual loads from house then get another!
I will be giving them a email directly, only my last email to Fogstar regarding battery paramotors got ignored.
a little bit frustrating seeing as ive spent over £4.5 grand with this firm in the uk (Fogstar)
I will get the dimensions and a few photos when I am next at my workshop, sorry but it's the weekend and I don't like close by to where I work.
Q-Dog
¯\_(ツ)_/¯
That's good, but doesn't explain why you have brass instead of the copper they advertise.
from what I gather, fogstar used brass to help with thread stripping in the brass
robbob2112
Doing more research, mosty harmless
I will assume you meant thread stripping in copper. In that case they should have gone more narrow and thicker rather than switching to brass and still advertising copper. Bad PR to get caught with the hand in the cookie jar so to speak. I will be interested to see the diminsions of both brass and copper and if they are the same or if they increased the size of the brass bars to compensate for the inferior metal.
robbob2112
Doing more research, mosty harmless
That is what I was looking at and the only thing that is important about it is the voltage rating. With the sort of DC you are dealing with you aren't going to start an arc. Now from a pure physical standpoint a taller standoff might make it easier to reach behind to hold a nut or something if you manage to strip a threaded hole and don't have a tap handy.
The main thing is to not have the bars near enough to anything to physically short them to it. I assume your cabinet came with the finger molded plastic around them and a cover? If not I think that is a worthy investment since it only costs $20ish for 8ft.
I am yet to go to my workshop where my cabinet is, BUT from memory, I would say the brass buss bars that I have in my cabinet are one and a half inch wide (38mm) and about 10mm thick.
as promised, I will defiantly confirm this and upload a photo.
I have been promised some free solid copper bus bars, and when I get them, I will compare.
there is a buss bar calculator floating around on the net.
No finger plastic. I know the ones you mean though.
my brass bars are covered in heat shrink (as per the description I gave above)
Zwy
Emperor Of Solar
I made my own from 1/4" x 1 1/4" copper bar. Nickel plated it myself.
Cold headed in the square holes for carriage bolts.
Insulators are these from Amazon, 3 per busbar. https://www.amazon.com/gp/product/B009SCSXVO/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Cold headed in the square holes for carriage bolts.
Insulators are these from Amazon, 3 per busbar. https://www.amazon.com/gp/product/B009SCSXVO/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
robbob2112
Doing more research, mosty harmless
So, using the calculator - the brass if it was best quality was 760amp capacity and if it was cheaper quality (low copper content) it was 380amps. For the copper ones carry around 942 amps.
Much better deal with copper. They did increase the size of the brass verse copper but IMO not enough.
Much better deal with copper. They did increase the size of the brass verse copper but IMO not enough.
robbob2112
Doing more research, mosty harmless
Zwy
Emperor Of Solar
Probably when I built it. That has been about 1.5 years ago. I know it is way oversized, I like things on the heavy side. Cabinet build is in my signature below.
You have the current backwards.
4/0 Red cable goes to battery bank ABB shunt trip breaker controlled the Batrium BMS. From ABB breaker the cables go to a Victron Lynx and split to the 2 inverters. Another 250A Class T fuse for each inverter feed. Seen here in the wiring trough.
That is a 175A Class T fuse that goes from battery to main busbar. I would have used some cable but space was tight and I decided this way I could get everything to fit. I have 4 batteries connected to the main busbar.
Next box I am building is deeper so I might run cable or maybe busbars from batteries and T fuses to main busbar which will be 1/4" x 1 1/4" again.
robbob2112
Doing more research, mosty harmless
Ah OK, makes more sense now.
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