Lug size
- Thread starter dtpruette
- Start date
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- Location
- New Jersey
- Occupation
- Journeyman Electrician (retired)
IMO what is stamped on the terminal by the factory.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
The lugs are 'universally listed" rather than being specific to the panel.
The panel label is very specific and takes into account the temperature rise, wire bending space, and SCCR pull out requirements of its UL Listing.
Which listing is more important to you?
The panel label is very specific and takes into account the temperature rise, wire bending space, and SCCR pull out requirements of its UL Listing.
Which listing is more important to you?
Thanks for the good info. And the sarcastic question.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Not sarcastic but pointing out difference in listing
- Location
- New Jersey
- Occupation
- Journeyman Electrician (retired)
Can't the lugs on a panel be changed? We often get them without lugs.
The lugs are actually the size we want. The panel label is the problem.
- Location
- New Jersey
- Occupation
- Journeyman Electrician (retired)
To Jim's point about the listing you're not going to end up with an issue with bending space when using a conductor smaller than what's on the label. I would reach out to Siemens and get something in writing.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
Yep.
It could be that the lug doesn't hold the smallest conductor during a possible 'maximum level', say 65kA, short circuit incident. Maybe they would hole a smaller conductor sufficiently at a lower, say 22kA, event.
More likely, the panel label is lug agnostic and the manufacturer purchasing group has simply found a new source with a lug that has a range greater than originally designed.
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