wireguy8169
Senior Member
- Location
- Southern Maine
First let me say that I am not in favor of doing the installation the way I am going to explain it and may not have to but here is what my boss wants to do:
We have a clairifier in one of our waste water treatment facilities, we have rebuilt it and its ready to be installed. An underlying issue is we have to be concerned with is that it will not ever be turned on so my boss had the idea of putting the overhead light and exhaust on the same switch. For some reason he is not infavor of a timer but hey whatever.
The lighting is 277V and the Exhaust is 120V.
I am not a big fan of mixing systems in raceway's or enclosures but realize it is permitted, what I am really not liking is putting two systems on the snap switch regardless of all the labeling in the world. Art. 404.9 Does allow you to put two or three circuits on a mulitpole snap switch as long as it is listed and marked. Any input is appreciated but I think I am mainly just venting and sharing.
Thanks
We have a clairifier in one of our waste water treatment facilities, we have rebuilt it and its ready to be installed. An underlying issue is we have to be concerned with is that it will not ever be turned on so my boss had the idea of putting the overhead light and exhaust on the same switch. For some reason he is not infavor of a timer but hey whatever.
The lighting is 277V and the Exhaust is 120V.
I am not a big fan of mixing systems in raceway's or enclosures but realize it is permitted, what I am really not liking is putting two systems on the snap switch regardless of all the labeling in the world. Art. 404.9 Does allow you to put two or three circuits on a mulitpole snap switch as long as it is listed and marked. Any input is appreciated but I think I am mainly just venting and sharing.
Thanks