3 NM cables through 3/4 box knockout

[halligan142]

Ok Wife wanted a pool which required a reconfiguring of outdoor electrical. I now have 3 circuits entering a 4" weathertight box mounted to the outside of the house with a 3/4 threaded rear entrance. It used to only have a GFI. I had to bring a dedicated pump circuit to it, and while I was at it I figured I'd run another circuit for the shed. SO basically I have one NM wire that will terminate to a GFI mounted in the box and will also take care of convenience outlet for pool. One that will enter box and transfer to THWN and go underground to box on the shed. And one that will transfer to THWN and go to the same box on shed through the same conduit then go to pump for pool. Are there any 3/4 connectors/clamps that are rated for 3 #12 wires? Also can I run a single common ground wire through the conduit from Box on house to box on shed or will this run afoul of the "dedicated circuit" requirement for pool pump?

 

[ActionDave]

I am closing this thread, in accordance with the Forum rules. This Forum is intended to assist professional electricians, inspectors, engineers, and other members of the electrical industry in the performance of their job-related tasks. However, if you are not an electrician or an electrical contractor, then we are not permitted to help you perform your own electrical installation work.


If I have misjudged the situation, if for example this project is related to your work, then send me a Private Message. If you can show me that I am wrong, and that you are a licensed electrician (or at least a licensed apprentice), then I will reopen your post, and offer an apology for the delay and inconvenience.