masoncramer04
Member
- Location
- Washington USA
- Occupation
- Electrician
Having a difficult time figuring out what I should do here. I have a 1" PVC conduit run running from main shop panel to an 8x8 junction box and then receptacles. It's going to feed a Welding table with a 100A Subpanel mounted to it with a #4 AWG SO cord and a NEMA 6-50 plug (2 hots and a ground) currently connected to the end of it to supply it powe. This would allow the table to be mobile around shop. Table has a 50A circuit with a 240V NEMA 6-50R receptacle, and a 30A circuit with a 240V NEMA 6-50R receptacle. There is no 120V loads on the subpanel and no loads requiring a neutral. Only one of the welders will be running at a time. In the same conduit running to the junction box, I need a 20A 120V circuit (1 hot, 1 neutral, and 1 ground). The 240V and 120V circuits will be separate plugs and on different breakers in the main panel. Running though the conduit I am planning to run (2) #2AWG THHN Black and Red (1) #6 AWG THHN Green, (1) #12AWG THHN Black, (1) #12AWG THHN White, (1) #12AWG THHN Green. This will fulfill the 240V and the 120V receptacles. My question is, do I need to run a neutral to the Subpanel connected to the 240V Welding receptacle. There will be no loads with a neutral pin connected to the Subpanel. The only circuit on the welding table using a neutral would be the 120V receptacle, which would have its own plug and neutral ran sized to 20A. Is a neutral required? I can't seem to find any code reference saying it does. Thanks
