Rustmonger
New User
- Location
- Hilda Missouri
- Occupation
- Owners Representative
Be gentle folks, this is my first post here!
I have been looking at both the suppliers literature and my Ugly's , along with scouring the internet,
and can't quite puzzle this one out-
The setting is a Combination woodworking/ metalworking shop, with saws, lathes, etc.
When choosing a shop- wide standard for a cord end (locking) for equipment which doesn't have a neutral,
or a place to land a neutral on the equipment, there seems to be no choice but to jump to L21.
L21 has a neutral which in this application would be absent from the cord to the machine, or left unconnected inside the machine.
In my current hobby shop, where I have 3ph 208/120vY service, we always just used the old cord ends from my previous shop (3ph delta ),
which were L15 (both 20amp and 30amp) providing a ground along with the 3 current carrying conductors.
Of course L-15 is marked and rated for 250v, and all of the literature I can find shows it in a delta configuration.
I have consulted a couple of electricians that I know from the job sites, and one PE/EE, and received 3 distinctly different
answers. I am nearing retirement and about to build my "Someday shop". I would like to choose the correct receptacles, and of
course don't want to leave a building full of headaches for the next guy.
Is L-21 my only correct choice, or is L-15 accepted for 3 phase 208v as long as I don't use it on equipment which requires a neutral?
I don't have any 3ph equipment which requires a neutral, if that matters.
Thanks for any comments, Jeff
I have been looking at both the suppliers literature and my Ugly's , along with scouring the internet,
and can't quite puzzle this one out-
The setting is a Combination woodworking/ metalworking shop, with saws, lathes, etc.
When choosing a shop- wide standard for a cord end (locking) for equipment which doesn't have a neutral,
or a place to land a neutral on the equipment, there seems to be no choice but to jump to L21.
L21 has a neutral which in this application would be absent from the cord to the machine, or left unconnected inside the machine.
In my current hobby shop, where I have 3ph 208/120vY service, we always just used the old cord ends from my previous shop (3ph delta ),
which were L15 (both 20amp and 30amp) providing a ground along with the 3 current carrying conductors.
Of course L-15 is marked and rated for 250v, and all of the literature I can find shows it in a delta configuration.
I have consulted a couple of electricians that I know from the job sites, and one PE/EE, and received 3 distinctly different
answers. I am nearing retirement and about to build my "Someday shop". I would like to choose the correct receptacles, and of
course don't want to leave a building full of headaches for the next guy.
Is L-21 my only correct choice, or is L-15 accepted for 3 phase 208v as long as I don't use it on equipment which requires a neutral?
I don't have any 3ph equipment which requires a neutral, if that matters.
Thanks for any comments, Jeff
