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美国 NEMA 插头和插尾
    15 Ampere 20 Ampere 30 Ampere 50 Ampere 60 Ampere
    Receptacle Plug Receptacle Plug Receptacle Plug Receptacle Plug Receptacle Plug
125V 1 1-15R
1-15P
               
250V 2   2-15P
2-20R
2-20P
2-30R
2-30P
       
125V 5 5-15R
5-15P
5-20R
5-20P
5-20R
5-30P
5-50R
5-50P
   
250V 6 6-15R
6-15P
6-20R
6-20P
6-30R
6-30P
6-50R
6-50P
   
277V,
A.C.
7 7-15R
7-15P
7-20R
7-20P
7-30R
7-30P
7-50R
7-50P
   
125 /
250V
10     10-20R
10-20P
10-30R
10-30P
10-50R
10-50P
   

250V
11 11-15R
11-15P
11-20R
11-20P
11-30R
11-30P
11-50R
11-50P
   
125/
250V
14 14-15R
14-15P
14-20R
14-20P
14-30R
14-30P
14-50R
14-50P
14-60R
14-60P

250V
15 15-15R
15-15P
15-20R
15-20P
15-30R
15-30P
15-50R
15-50P
15-60R
15-60P
3ΦY 125/ 208V 18 18-15R

18-15P
18-20R
18-20P
18-30R
18-30P
18-50R
18-50P
18-60R
18-60P
    15 AMPERE 20 AMPERE 30 AMPERE
    Receptacle Plug Receptacle Plug Receptacle Plug
125V L1 L1-15R L1-15P        
250V L2     L2-20R L2-20P    
125V L5 L5-15R L5-15P L50-20R L50-20P L5-30R L5-30P
250V L6 L6-15R L6-15P L6-20R L6-20P L6-30R L6-30P
277V, A.C. L7 L7-15R L7-15P L7-20R L7-20P L7-30R L7-30P
480V L8     L8-20R L8-20P L8-30R L8-30P
600V L9     L9-20R L9-20P L9-30R L9-30P
25V L14       L14-20    
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