What Plug for this Receptacle?

[BIGneutrino]

 

[thankyouOB]

Bing is your friend
https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets#NEMA_1-15_.2815_A.2F125_V_unearthed.29_.28Type_A.29" onclick="window.open(this.href);return false;

 

[smkettner]

NEMA 6-15 or 6-20

 

[BIGneutrino]

Bing is your friend
https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets#NEMA_1-15_.2815_A.2F125_V_unearthed.29_.28Type_A.29" onclick="window.open(this.href);return false;

I can't discern the difference between a NEMA 5-20R and a NEMA 6-20P. It also looks like a NEMA 6-15 would fit this receptacle (which is worrisome because I want to get access to 20 amps, not 15).

This receptacle is at two locations that we drive our EVs to on occasion. Both homeowners do not use the receptacle, so I don't know if it used to power an A.C unit, welder, or something else.

 

[smkettner]

Either will fit. s/b 20a breaker but check the box.

 

[DeaneG]

I can't discern the difference between a NEMA 5-20R and a NEMA 6-20P.

R = Receptacle, P = Plug. NEMA 5-20R (120V) has the opposite slot twisted compared to NEMA 6-20R (240V).

 

[KJD]

Stayonline has a good NEMA plug chart.

http://www.stayonline.com/reference-nema-straight-blade.aspx" onclick="window.open(this.href);return false;

 

[BIGneutrino]

Went with this plug--thank you for your help, folks!