What is this plug?

[Carson Williams]

Does anyone know what this plug is? I am thinking L6-20 or L5-20?

 

[derekleffew]

Need a better picture. Are any of the blades "hooked"? One blade looks to be silver, indicating a neutral.

Upon closer inspection, looks like a nub on the "silver" pin, thus my new guess, TLGO.
.

 

[Mac Hosehead]

I believe that this is a similar connector. The keyed blade is ground. The other two are rated up to 250 volts but in the older installations I have seen these used it was 120 volts with unknown polarity. It is a non-NEMA connector so it is not used currently.

 

[JonCarter]

Looks like a NEMA 6L-15. See https://www.stayonline.com/product-resources/nema-locking-reference-chart.asp

 

[Butch!]

X2 for TLGO, very popular back in the late 50's and into the 60's. Obsolete and non-NEMA. I've changed out a lot of them over the years. Depending on the use and needed rating change it out to an Edison or a real twist lock.

 

[Carson Williams]

Thanks everyone- here is a better picture, if that changes anyone’s thoughts.

 

[Van]

Looks like a NEMA 6L-15. See https://www.stayonline.com/product-resources/nema-locking-reference-chart.asp

I would agree but the tab on the ground is out , not in. and the blade widths are a different config.