jasonrohrer
New User
- Location
- New Hampshire
- Occupation
- Engineer
I have this NEMA enclosure:
I have residential AC Romex wiring inside, with some Wago connectors and some screw-down terminal blocks. It would be possible, if you really poked around at the screw-down connectors, to come into direct contact with AC voltage. And of course, you could pop open the levers on the Wago connectors.
The cabinet came with a thumb-turn latch on the front.
But there's also the possibility to bolt it shut (which would require a tool to open, instead of just your thumb).
I have noticed that every other thing that has exposed AC conductors inside it screws shut. For example, metal outlet boxes, and my breaker panels. You can open a doors on my breaker panels with your hand to access the breakers, but to get to the conductors, you need to take out four screws.
It doesn't feel safe to me to just leave the thumb-turn as the only thing holding this cabinet closed, since someone might not expect that there's AC conductors inside. I also thought about putting a shock hazard sticker on it, since it's not obvious at first glance what this little cabinet is for.
However, I'm curious if anyone knows if this is mentioned in the NEC anywhere.
I have residential AC Romex wiring inside, with some Wago connectors and some screw-down terminal blocks. It would be possible, if you really poked around at the screw-down connectors, to come into direct contact with AC voltage. And of course, you could pop open the levers on the Wago connectors.
The cabinet came with a thumb-turn latch on the front.
But there's also the possibility to bolt it shut (which would require a tool to open, instead of just your thumb).
I have noticed that every other thing that has exposed AC conductors inside it screws shut. For example, metal outlet boxes, and my breaker panels. You can open a doors on my breaker panels with your hand to access the breakers, but to get to the conductors, you need to take out four screws.
It doesn't feel safe to me to just leave the thumb-turn as the only thing holding this cabinet closed, since someone might not expect that there's AC conductors inside. I also thought about putting a shock hazard sticker on it, since it's not obvious at first glance what this little cabinet is for.
However, I'm curious if anyone knows if this is mentioned in the NEC anywhere.
