Some NEMA Configurations

ANSI/NEMA WD 6-2002

straight blades configurations		General-purpose non-locking plugs and receptacles
		15 amperes		20 amperes		30 amperes		50 amperes
		receptacle	plug	receptacle	plug	receptacle	plug	receptacle	plug
125V	1	NEMA 1-15R	NEMA 1-15P
125V	5	NEMA 5-15R	NEMA 5-15P	NEMA 5-20R	NEMA 5-20P	NEMA 5-30R	NEMA 5-30P	NEMA 5-50R	NEMA 5-50P
250V	6	NEMA 6-15R	NEMA 6-15P	NEMA 6-20R	NEMA 6-20P	NEMA 6-30R	NEMA 6-30P	NEMA 6-50R	NEMA 6-50P
277V	7	NEMA 7-15R	NEMA 7-15P	NEMA 7-20R	NEMA 7-20P				NEMA 7-50P
125V/250V	10					NEMA 10-30R	NEMA 10-30P	NEMA 10-50R	NEMA 10-50P
3φ~ 250V	11						NEMA 11-30P		NEMA 11-50P
125V/250V	14			NEMA 14-20R	NEMA 14-20P	NEMA 14-30R	NEMA 14-30P	NEMA 14-50R	NEMA 14-50P
3φ~ 250V	15						NEMA 15-30P	NEMA 15-50R	NEMA 15-50P
125V	TT					NEMA TT-30R	NEMA TT-30P

Locking Type NEMA Configurations		NEMA configurations for locking plugs and receptacles
		15 amperes		20 amperes		30 amperes		50 amperes
		receptacle	plug	receptacle	plug	receptacle	plug	receptacle	plug
125V	L5	NEMA L5-15R	NEMA L5-15P	NEMA L5-20R	NEMA L5-20P	NEMA L5-30R	NEMA L5-30P
250V	L6	NEMA L6-15R	NEMA L6-15P	NEMA L6-20R	NEMA L6-20P	NEMA L6-30R	NEMA L6-30P
277V	L7	NEMA L7-15R	NEMA L7-15P	NEMA L7-20R	NEMA L7-20P	NEMA L7-30R	NEMA L7-30P
480V	L8			NEMA L8-20R	NEMA L8-20P	NEMA L8-30R	NEMA L8-30P
125V/250V	L14			NEMA L14-20R	NEMA L14-20P	NEMA L14-30R	NEMA L14-30P
3φ~/250V	L15			NEMA L15-20R	NEMA L15-20P	NEMA L15-30R	NEMA L15-30P
3φ~/480V	L16				NEMA L16-20P		NEMA L16-30P
3φ Y 125/208V	L18						NEMA L18-30P
3φ Y 277/480V	L19						NEMA L19-30P
3φ Y 347/600V	L20						NEMA L20-30P
3φ Y 120/208V	L21			NEMA L21-20R	NEMA L21-20P	NEMA L21-30R	NEMA L21-30P
3φ Y 347/600V	L22				NEMA L22-20P		NEMA L22-30P
3φ Y 347/600V	L23				NEMA L23-20P		NEMA L23-30P
3φ Y 347/600V	L24				NEMA L24-20P
3φ Y 347/600V	SS1							NEMA SS1-50R	NEMA SS1-50P
3φ Y 347/600V	SS2							NEMA SS2-50R	NEMA SS2-50P