Originally Posted by BADAIR
can you identify this 240V with ground receptacle...name, manuf, purpose, etc...
[Linked Image from nachi.org]


I am still an young one but from what I know that is not a 240 Volt receptacle
It is a tandem/Parallel Outlet the older plugs were a tandem blade design and modern plugs are a polarized parallel design (That outlet not being polarized)

The newer design of that outlet is polarized and both slots look like a 20A T slot receptacle

Theres always enough room in the junction box.You just need a bigger hammer