Plug and Receptacle Configurations 



NEMA Straight Blade Plugs and Receptacles

Click here for NEMA Twist Lock Plugs and Receptacles

15 Amp.    20 Amp.    30 Amp.    50 Amp.


15 Amp.



Male Plug

NEMA 1-15P



Female Receptacle

NEMA 1-15R

 

15 amp. 125 volt
2-Pole
2-Wire

Uses include non-grounded appliances, lamps, toasters, irons, double insulated tools, TV's and some other electronic appliances.
hp rating

Notice the wide blade is the white or neutral pole.

 

Male Plug

NEMA 5-15P

 

 

Female Receptacle

NEMA 5-15R

Female Connector

This receptacle will also accept the (NEMA 1-15P)
15A/125V 2-pole plug above.

 

15 amp. 125 volt
2-Pole
3-Wire Grounding

Most common household and commercial plug.  Uses include electric drills, cloths washers and gas dryers, window air conditioners, refrigerators   and freezers.  hp rating

Notice the wide blade is the white or neutral pole.



Male Plug

NEMA 6-15P

This plug can also be used in the (NEMA 6-20R)
20A/250V receptacle below.

 

Female Receptacle

NEMA 6-15R

 

15 amp. 250 volt
2-Pole
3-Wire Grounding

Household use includes window 
air conditioners, certain machines and office equipment in commercial applications.  1 hp rating

 


20 Amp.

Male Plug

NEMA 5-20P




Female Receptacle

NEMA 5-20R

This receptacle will also accept the 15A/125V 2-wire (NEMA 1-15P)
 or 3-wire (NEMA 5-15P),  male plugs above.

 

20 amp. 125 volt
2-Pole
3-Wire Grounding

Uses include old style window air conditioners, large electric heaters, certain machines and office equipment in commercial applications.
1 hp rating

Notice that you can plug a standard 15A/125V male plug into this female receptacle but not the 
other way around.
Most codes require that this receptacle be used when wiring a single receptacle on a 20 amp. circuit. 




Male Plug

NEMA 6-20P

Angle Male Plug




 

Female Receptacle

NEMA 6-20R

This receptacle will also accept the (NEMA 6-15P)
15A/250V male plug above.

 

20 amp. 250 volt
2-Pole
3-Wire Grounding

Most common household 250 volt plug. Used in many larger window air conditioners and some large home use air compressors, certain machines and office equipment in commercial applications.  2 hp rating

Notice that this configuration is the opposite of 20A/125V but can be confusing when looking at the plug.  They are mirror images of each other.

 

30 Amp.



Male Plug

NEMA 6-30P



Female Receptacle

NEMA 6-30R

 

30 amp. 250 volt
2-Pole
3-Wire Grounding

Uses include large style window air conditioners (30,000 btu), china and pottery kilns, certain machines and office equipment in commercial applications.  
2 hp rating

Actual face diameter is 2 1/8" 



Male Plug

NEMA 10-30P



 

Female Receptacle

NEMA 10-30R

 

30 amp. 125/250 volt
3-Pole
3-Wire 

Mainly used on old electric dryers.  This is a dual voltage device when the appliance uses both 125 volt for the controls and drum motor and 250 volt for the electric heating element.
2 hp rating

Actual face diameter is 2 1/8" 



Male Plug

NEMA 14-30P



Female Receptacle

NEMA 14-30R

30 amp. 125/250 volt
3-Pole
4-Wire Grounding

Same as above but with a ground wire and used on new electric dryers.  This is a dual voltage device when the appliance uses both 125 volt for the controls and drum motor and 250 volt for the electric heating element.
2 hp rating.

Actual face diameter is 2 1/8" 

 

 

50 Amp.



Male Plug

NEMA 6-50P





Female Receptacle

NEMA 6-50R

 

50 amp. 250 volt
2-Pole
3-Wire Grounding

Uses include electric welders.
  3 hp rating

Actual face diameter is 2 1/8" 



Male Plug

NEMA 10-50P



Female Receptacle

NEMA 10-50R

 

50 amp. 125/250 volt
3-Pole
3-Wire 

Mainly used on old ranges.  This is a dual voltage device when the appliance uses both 125 volt for the controls, clock and lights and 250 volt for the electric heating elements.
2 hp rating

Actual face diameter is 2 1/8" 


Male Plug

NEMA 14-50P


Female Receptacle

NEMA 14-50R

50 amp. 125/250 volt
3-Pole
4-Wire Grounding

Same as above but with a ground wire and used on new electric ranges.  This is a dual voltage device when the appliance uses both 125 volt for the controls, clock and lights and 250 volt for the electric heating elements.
2 hp rating

Actual face diameter is 2 1/8"

 

 

www.frentzandsons.com HOME | Hardware References HOME | Back to top

2002 M.R. Frentz
Last update: March 18, 2008 05:16 PM
Website comments: webmaster