AC Power Plugs and Sockets - Comparison of Sockets

Comparison of Sockets

Type1 Socket standard Power rating Grounded Polarised Fused Insulated pins
A NEMA 1-15 unpolarised 15 A/125 V No No No No
NEMA 1-15 polarised 15 A/125 V No Yes No No
JIS C 8303, Class II 15 A/100 V No No No No
B NEMA 5-15 15 A/125 V Yes* Yes No No
NEMA 5-20 20 A/125 V Yes* Yes No No
JIS C 8303, Class I 15 A/100 V Yes* Yes No No
C CEE 7/16 (Europlug) 2.5 A/250 V No No No Yes
CEE 7/17 16 A/250 V No No2 No No
GOST 7396 C 1 6 A/250 V
16 A/250 V		 No No No No
D and M BS 546 (2 pin) 2 A/250 V
5 A/250 V = BS 4573		 No No No No
BS 546 (3 pin) 2 A/250 V
5 A/250 V
15 A/250 V = SABS 164
30 A/250 V		 Yes Yes No No
E CEE 7/5 ‡ 16 A/250 V Yes* Yes3 No No†
F CEE 7/4 Schuko ‡ 16 A/250 V Yes* No No No†
G BS 1363, IS 401 & 411, MS 589, SS 145 13 A/230-240 V Yes Yes Yes Yes
H SI 32 16 A/250 V Yes4 Yes No No
TIS 166-2549 16 A/250 V Yes Yes No Yes
I AS/NZS 3112 10 A/240 V
15 A/240 V
20 A/240 V
25 A/240 V
32 A/240 V		 Yes* Yes No Yes
CPCS-CCC 10 A/250 V Yes Yes No No
IRAM 2073 10 A/250 V Yes Yes No No
J Swiss SEV 1011 10 A/250 V
16 A/250 V		 Yes* Yes No No
K Danish 107-2-D1 13 A/250 V Yes* Yes No No
L CEI 23-16/VII 10 A/250 V
16 A/250 V		 Yes* No No Yes
− IEC 60906-1 (2 pin) 10 A and 20 A/250 V No No No Yes
IEC 60906-1 (3 pin) 10 A and 20 A/250 V Yes* Yes No Yes
* Compatible with ungrounded plugs.
† Deep-wall socket prevents human contact with pins.
‡ CEE 7/7 specifies a grounded hybrid plug that will fit into both the CEE 7/4 and CEE 7/5 sockets. CEE 7/17 specifies an ungrounded hybrid plug that will fit into both the CEE 7/4 and CEE 7/5 sockets.
1 Type letters are from a US Department of Commerce report that sees widespread but not universal use to differentiate plug and socket types based on rough mechanical compatibility. Most common household plugs have an associated letter.
2 There are some CEE 7/17 plugs with special shape which are polarised when used with CEE 7/5 sockets (mechanically only).
3 Plug can only be inserted one way with French CEE 7/5, but lack of wiring convention means that the system is not polarized.
4 Newer sockets can accept ungrounded Europlugs.

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