Burndy Pin adapters

P

PanelGuy1315

Member
Location
Louisville
Occupation
Electrical Designer
Hello everyone,

We have a situation where we've run a single set of 600kcmil conductors from a 400A breaker in an iline panel to a 400A MLO panel. We are finding out the breaker and the MLO panel are both set up for a parallel feed with max 500kcmil connections.

I think there are options to buy different lug kits for both ends here but wanted to see if the Burndy pin connectors are also an option? Or if anyone else has a similar product or solution.


YE36P350X150FX, Copper Compression Pin Adapter, 600/500 kcmil Cu | YE36P350X150FX | Burndy

Type YE-P copper compression adapters are designed for reliable termination of copper conductor when the current capacity of the conductor is downsized, but larger conductor is utilized. Typical applications are for voltage drop protection when oversized conductors are used or flex conductor is...
www.hubbell.com www.hubbell.com
 
Schneider Electric has said their terminal have not been evaluated with solid pin adapters. They also say to watch the wire bending space if you use stranded wire style adapters.

Have you looked into replacing the mechanical lugs with compression style?
 
When you say compression style, do you mean a crimp connector and then bolt in on?

Do you have a link to the stranded wire style adapter?

One thing I read said that these adapters are for situations where the conductor was upsized for VD and needed to be downsized to go into lug. For this situation, the 600kcmil is not upsized for VD.
 
PanelGuy1315 said:
When you say compression style, do you mean a crimp connector and then bolt in on?
Click to expand...
Yes
PanelGuy1315 said:
Do you have a link to the stranded wire style adapter?
Click to expand...
I ysed to call them MAC adapters, but many people make them
PanelGuy1315 said:
One thing I read said that these adapters are for situations where the conductor was upsized for VD and needed to be downsized to go into lug. For this situation, the 600kcmil is not upsized for VD.
Click to expand...
The reason does not matter, as long as the adapter is rated for the current.
 
I found this one from Ilsco that looks like a stranded wire instead of a solid pin. It says rated for full ampacity of incoming conductor. This seems like the ticket. Thoughts?

1743607178952.png
 

Attachments

  • 1743607161434.png
    1743607161434.png
    308.4 KB · Views: 4
PanelGuy1315 said:
Thoughts?
Click to expand...
Two comments (not based on any specific familiarity with the product):

- As regards wire bending space, since the "C" dimension on the adaptor is 2-3/4", seems appropriate to confirm that the available wire bending space is at least 2-3/4" more than the minimum wire bending space for 600 kcmil.

- While I see how the pin adaptor manufacturer can say that the pin with 350 kcmil pigtail is rated for the full ampacity of 600 kcmil Cu, I don't see how that means that the connection of the 350 kcmil pigtail to a lug rated for 500 kcmil max will necessarily be rated for the full ampacity of 600 kcmil Cu.

Cheers, Wayne
 
PanelGuy1315 said:
I found this one from Ilsco that looks like a stranded wire instead of a solid pin. It says rated for full ampacity of incoming conductor. This seems like the ticket. Thoughts?
Click to expand...
I would prefer those. I like the idea of the stranded pin versus the solid but I would use either one. We've used both types many times and the bending space is not an real world issue.
 
It's the width of them that usually gets you.
Get the offset pin type if able.
They will allow you to crimp them on in a way needed should the lugs be close together.



Jap>
 
electrofelon said:
I don't really even see how they can say that. How did they get around the pesky physics?
Click to expand...
It's the difference between the bulk behavior (in a wire sufficiently far away from the ends) versus the boundary behavior (near the ends). A short pin is basically all boundary behavior, while ampacities in Table 310.16 are based on the bulk behavior.

Cheers, Wayne
 
You must log in or register to reply here.
Top