Signature Solar busbar...

[Mark-]

Hello,

Seeking a busbar like this one: https://signaturesolar.com/12-stud-busbar/

Ideas?

 

[42OhmsPA]

Looks like you already found it...
Another option here:

60V Disconnect disconnection overload?

I'm planning ahead for adding my 3rd pack and having trouble deciding on a proper disconnect. I attached a crude diagram of the planned setup and a photo of how things sit currently (expect the SRNE is in service) the packs will be reconfigured and put in some sort of enclosure / rack / cabinet...

diysolarforum.com

 

[Gavin Stone]

Hello,

Seeking a busbar like this one: https://signaturesolar.com/12-stud-busbar/

Ideas?

They are in stock it looks like. What is it you’re asking?

 

[a619]

I wish they had a 6" version of these as well. These are great, but 12 studs is going to be overkill for most systems and they take up too much space.

 

[Supervstech]

I mean the standoffs are readily available and a hack saw will make two out of it fairly simply...

 

[Mark-]

They are in stock it looks like. What is it you’re asking?

Thanks for the response.
They are not in stock.

 

[Mark-]

Looks like you already found it...
Another option here:

60V Disconnect disconnection overload?

I'm planning ahead for adding my 3rd pack and having trouble deciding on a proper disconnect. I attached a crude diagram of the planned setup and a photo of how things sit currently (expect the SRNE is in service) the packs will be reconfigured and put in some sort of enclosure / rack / cabinet...

diysolarforum.com

Thank you.

The direct Amazon link:
https://www.amazon.com/dp/B08PYCPY1...&s=hi&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWw&th=1

 

[Quattrohead]

Why don't I believe that is made out of solid copper, the brackets are real stainless steel, the bolts are real stainless steel and the plastic standoffs won't burn? ?

 

[42OhmsPA]

Why don't I believe that is made out of solid copper, the brackets are real stainless steel, the bolts are real stainless steel and the plastic standoffs won't burn? ?

I wondered the same thing...
I'll check the brackets and bolts with a magnet when I go down to keep working /walking in circles thinking about what project to work on next ?
What method could I use to test for real copper?

It is solid, I'll give it that much.
I'll also check voltage drop when I finally put it to use.

 

[Gavin Stone]

In regards to the Amazon link, Im not really fond of 1/4 studs with amperage that high. And that’s just one bar. So I suppose you’d have to double the price.

 

[42OhmsPA]

In regards to the Amazon link, Im not really fond of 1/4 studs with amperage that high. And that’s just one bar. So I suppose you’d have to double the price.

Agreed.
For my use the main connection to the inverter will be drilled out to 3/8". The 1/4" will stay for the pack connections since that's the stud size on the Midnite 100a breakers.

 

[Shimmy]

In regards to the Amazon link, Im not really fond of 1/4 studs with amperage that high. And that’s just one bar. So I suppose you’d have to double the price.

FWIW it looks like the stud pattern is intended for two hole long barrel lugs so you would have greater contact area and more even compressive source.

Doesn't look like the insulating apples are really 7.5kV though, so who knows what it really is.

 

[Mark-]

In regards to the Amazon link, Im not really fond of 1/4 studs with amperage that high. And that’s just one bar. So I suppose you’d have to double the price.

The same page has 5/16 studs.

 

[Watts Happening]

I have the signature solar ones, they work fine, but they’re big for sure

 

[Gavin Stone]

I didn’t see any feet on the 5/16 option. But that probably isn’t a huge issue if you’re handy.

 

[ricardocello]

I bought this Amazon variation for my ground busbar. It has 5/16" hardware, but is 7.8" wide.
I drilled out one hole for 3/8" for battery ground lug, and I'm pretty sure it was copper all the way through.
https://www.amazon.com/dp/B08PY4DHTQ/ref=dp_iou_view_item?ie=UTF8&th=1

I've got this fancy CIP100400070 Victron one for the positive busbar, with MEGA fuses:


I've pulled 200A continuously through both, neither busbar gets even warm to the touch.

 

[a619]

I mean the standoffs are readily available and a hack saw will make two out of it fairly simply...

At that point, I might just buy a copper bar and standoffs.

 

[42OhmsPA]

I wondered the same thing...
I'll check the brackets and bolts with a magnet when I go down to keep working /walking in circles thinking about what project to work on next ?
What method could I use to test for real copper?

It is solid, I'll give it that much.
I'll also check voltage drop when I finally put it to use.

@Quattrohead you're suspicions are pretty good.
It doesn't grab the Midnite breaker studs at all. It doesn't grab the standoffs nearly as well as the bolts, more magnetic in the bends. It doesn't grab the copper at all.

I suppose it's not a perfect test though...

Is Stainless Steel Magnetic? | Eclipse Magnetics

Not all types of stainless steel are magnetic. Learn more about the different types of stainless steel & how magnetic properties are determined in this article.

www.eclipsemagnetics.com

 

[42OhmsPA]

Last one, sorry to derail the original intent of the thread.

 

[Quattrohead]

@Quattrohead you're suspicions are pretty good.
It doesn't grab the Midnite breaker studs at all. It doesn't grab the standoffs nearly as well as the bolts, more magnetic in the bends. It doesn't grab the copper at all.

Seems like a winner so far, now how about the flame test

 

[42OhmsPA]

Seems like a winner so far, now how about the flame test

The tank of mapp gas was staring at me saying I know you want to and the heat gun was laughing at me ?