xfrmr lug kits

[Alwayslearningelec]

Trying to determine lug kit qty.

So need a lug for each conductor I assume. Primary side of 3 phase would be 3 hots and 1 ground. Secondary side would be 3 hots, 1 neutral and 1 ground.

So essentially you’d need 9 lugs correct?
The LK-1 for 3 phase in the attachment only comes with 4 lugs.

http://www.nsiindustries.com/UserFiles/Documents/Product/111_lk_connectors17.pdf

 

[infinity]

Looks like that kit may work. The four larger lugs for the secondary and the smaller lugs for the primary and grounding.

 

[Alwayslearningelec]

Looks like that kit may work. The four larger lugs for the secondary and the smaller lugs for the primary and grounding.

LK-1 and LK-5 for just about same size xfrmr have diff qty of lugs. 4 and 7 for 3 phase. Why?

 

[MD Automation]

Fyi… most of the 3 phase transformers I have purchased in the last few years come with some type of grounding block already installed.

That being said, they tend to sometimes be comically large or small. I am talking about xfrmr sizes of 20 – 30 KVA and you either have something really tiny like this…





Or something super oversized like this…




I know the large one is rated for 350 Kcmil - #12 AWG, that’s quite a range! I say this mostly in jest, but I think I had trouble fitting a stranded #10 in the small one and keeping a #10 in the big one.

Anyway.. just pointing out you might not need to purchase individual (grounding) lugs for your primary and secondary conductors if your unit comes with a grounding block already installed.