Looking for way to lockout recessed twist lock plug
- Thread starter RJL86
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petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
I have had hinged covers made with a padlock hasp to put over them.
That's a definite option. Expensive but doable
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Just curious why do you need to lockout the inlet?
I would prefer to keep all power outside the enclosure. The breaker lockout is an option I'm considering.
I mainly want to keep anyone from opening the door just to lock out the machine. I might just use a hardwired pigtail then lockout the cord end, but we like using the flush plugs.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Is the inlet connected directly to a circuit breaker without any type of mechanical interlock?
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
If there is only one cord on premises that can possibly connect to it, I myself would have no problem with one of those cord connector lockout devices on it, otherwise some sort of cover with locking capabilities is about only other option IMO.
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
It was all but free in my case. I had them made as part of the enclosure when it was fabricated. Just a couple pieces of sheet metal, hinges, and some welding. It probably cost more for me to draw it up the first time then it did for the fab shop to make them. Once it was designed it is just a copy and paste thing.
If you are looking for something more off the shelf, there are several companies that make hinged doors that can be added to a surface over top of instruments.
VJ NEMA Hinged Window Kit, 227x120mm, Transparent, Polycarbonate
yes
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
What's the need? What is the concern?
An interlock prevents the blades from being energized.
An interlock prevents the blades from being energized.
I like the one you designed. If its a one off and you just want to buy something and dont mind if its a bit expensive, Hubbell has p/n WP2 which is a cover for the flanged inlets, and they have p/n HBLWC which is a locking hasp thing for the weatherproof covers such as WP2.
Out here ATT has all these cabinets on the streets containing electronics and they have a generator input that looks like a locking inlet and its integral cover has a place for a padlock. I need to figure out what those are.
Out here ATT has all these cabinets on the streets containing electronics and they have a generator input that looks like a locking inlet and its integral cover has a place for a padlock. I need to figure out what those are.
Sorry for any confusion, I didn't explain the use. The recessed plug is only a power inlet, with a breaker down stream. There is no way for the plug to be energized unless it is plugged into a cord. Locking it out would only be during maintenance so it can't be accidentally plugged in.
We don't do many ac boxes but I will probably just make the lockable cover a inhouse part number and use it based on customer preference.
Thanks for the input everyone! Maybe I can sell the covers, but I'm probably the only one that would want them haha
We don't do many ac boxes but I will probably just make the lockable cover a inhouse part number and use it based on customer preference.
Thanks for the input everyone! Maybe I can sell the covers, but I'm probably the only one that would want them haha
hadnt found those yet. Just checked them out. Pricey but would be exactly what I need. Thanks
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