Fixed connection plug & socket

[EyalDi]

Is there a common plug and wall socket combination for fixed connection (not allowing to remove the plug/wire without using a screwdriver or another tool)?
It is needed for 120V/30A, 3-wire connection.

Alternatives I thought of:
1. Hardwired connection (no plug)
2. Plug which includes a screw
3. Plug + cover, where the cover is fixed by screw
Part numbers / part types recommendation would be appreciated.

Thank you...

 

[barbeer]

not that I am aware of, maybe in the industrial catalogs?

 

[NoVA Comms Power]

Could a lockable in-use cover (the type normally used for wet locations) be a possible solution?

Here's an example from T&B.

 

[JohnConnolly]

Twist lock?

 

[Dennis Alwon]

I am not sure what your need is here but I have installed a 6x6x6 plastic box and installed a receptacle in a junction box inside the enclosure. You can notched the plastic for the cord and the cover screws on.

 

[haskindm]

What you are describing would seem to defeat the whole purpose of having a cord and plug connection in the first place, which is the easy interchange and/or relocation of equipment. If you are concerned about vibration causing the plug to fall out, then twist-lock would be the answer. If you are concerned about tampering or vandalism, some sort of locking cover or hard wiring would be in order.

 

[H.L.]

Hubbell makes a 15A 125V Cat No HBL5280C. It has a set screw thruogh the ground prong. I don't know if it is available in 30A.

http://www.hubbellcatalog.com/wiring/section-a-datasheet.asp?FAM=Straight_Blade&PN=HBL5280C

H.L.