Allowable wires on a stud terminal

[Newwave]

My shop wireman has 7 wires on a contactor terminal. Is this legal? It's a Hubbell DC contactor so there isn't any published specs on how many wires they can hold but normally there are only a couple. They are only control wires but I'm still worried about all those connection joints.

 

[infinity]

Even for fields installations IMO it's not an issue as long as the required amount of surface area is in contact with the stud.

Welcome to the Forum.

 

[Jraef]

That’s why you use stud terminals. They must be used with wire lugs, and each wire lug can only hold one conductor, but the only limit to the number of lugs you can stack on that stud is the physical limits of the stud itself. Generally that will require all threads of the nut are fully engaged so yours looks good to go.

 

[petersonra]

looks fine to me except for the wire without a lug.

 

[MAC702]

He even staggered them. What more do you want?

 

[gadfly56]

looks fine to me except for the wire without a lug.

On the stud in question, where do you see a bare wire? One wire is buried in the background, but it's clearly going into a sleeve that I assume is part of a lug.

 

[hbiss]

I believe he's referring to what looks to be a ground stud above the one on question. There seems to be a bare solid conductor coming from under something on the right that is wrapped around the stud.

-Hal

 

[gadfly56]

I believe he's referring to what looks to be a ground stud above the one on question. There seems to be a bare solid conductor coming from under something on the right that is wrapped around the stud.

-Hal

Ahhhh, I see that now.

 

[GoldDigger]

I believe he's referring to what looks to be a ground stud above the one on question. There seems to be a bare solid conductor coming from under something on the right that is wrapped around the stud.

-Hal

When a stud has appropriate combinations of washers, it can be rated for use with bare wires (solid only or both stranded and solid). The combination of ring terminal and bare wire is more problematic.