This is a common 2 pronged power cord found on household electronics that require polarized power. This cables often power CD players, DVD players, VCRs, Laptop power supplies, and more.
Q: What is the difference between the polarized and non-polarized C7 cables?
A: Each electronic device is uniquely designed and has unique power requirements. Some require polarized power and some do not. The easiest way to tell them apart is that the non-polarized version looks like a figure 8; both sides are completly round.
The polarized version has one flat edge.
Q: I'm not sure which power cable I need. Can you help?
A: The different power connectors can be confusing. We have a chart on the resources tab to help you determine which connector you need.
IEC connectors are the standard connectors as recognized by the International Electrotechical Commission. They are non-locking connectors rated up to 250 volts. The IEC standard uses a numerical approach to distinguish which is the outlet and which is the inlet. All odd numbers (C5 C13 etc.) are the outlets which plug into the even number inlet. The odd number connectors mate with the even number directly after them. For example a C13 plugs into a C14 but will not plug into a C12.
IEC 60320 Standard Power Connectors
Oulet
Inlet
Picture
Grounded
Max Amperage
Notes
C1
C2
No
.2
Typically found on electric shavers.
C5
C6
Yes
2.5
Laptops Apple iMac sometimes referred to as 'Mickey Mouse' connector.
C7
C8
No
2.5
Non-Polarized version. Very common plug found on audio video equipment laptop power supplies.
C7
C8
No
2.5
Polarized version. Very common plug found on audio video equipment laptop power supplies.
C9
C10
No
6
Used sparingly by Roland and Revox on audio equipment.
C13
C14
Yes
10 or 15
Very common found on most computers and peripherals.
C15
C16
Yes
10 or 15
Used for small appliances that get very hot.
C17
C18
No
10 or 15
Xbox 360 and some vacuum cleaners.
C19
C20
Yes
16 or 20
2005 PowerMac Cisco Power Supplies Cisco Chassis Dell workstations.
NEMA connectors are the standard connectors as recognized by the U.S. National Electrical Manufacturers Association for AC power. The standard is comprised of both locking and non-locking connectors rated up to 600 volts. The NEMA standard uses an alphabetical approach to distinguish which is the plug and which is the receptacle. The letter P designates the plug and a R designates the receptacle. For example a 5-15P will plug into a 5-15R.
NEMA Power Connectors
Receptacle
Plug
Picture
Grounded
Max Amperage
Notes
120VAC Power Connectors
1-15R
1-15P
No
15
Typical two prong connector found on lamps radios clocks and other small electronics.
5-15R
5-15P
Yes
15
Typical 3 prong connector found in modern homes and is found on a countless number of electronic devices.
L5-15R
L5-15P
Yes
15
Locking version of the 5-15.
5-20R
5-20P
Yes
20
20 amp connector. 5-20 receptacles will accept a 5-15 plug.
L5-20R
L5-20P
Yes
20
Locking version of the 5-20.
TT-30R
TT-30P
Yes
30
Travel Trailer 30 amp connector. RV receptacle found in nearly all RV parks.
5-30R
5-30P
Yes
30
30 amp connector.
L5-30R
L5-30P
Yes
30
Locking version of the 5-30.
5-50R
5-50P
Yes
30
50 amp connector.
240VAC Power Connectors
6-20R
6-20P
Yes
20
Wired hot - hot - ground these are used for 240 V circuits.
