A Guide to IEC 60320 Connectors
The International Electrotechnical Commission (IEC) defines a set of standard couplers for connecting power cords to electrical appliances. This standard, IEC 60320, ensures that connectors from different manufacturers are compatible and safe.
The standard names the plug on the end of a cord as the "connector" and the socket on the appliance as the "appliance inlet". A connector's matching inlet is designated by an odd number that is one number higher than the even number assigned to the connector. For example, a C13 connector fits into a C14 inlet.
The table below is based on the Australian/New Zealand Standard AS/NZS 60320.1:2004.
Connector Type | Connector (Female) | Appliance Inlet (Male) | Class | Max Temp. | Rated Current (Amps) |
---|---|---|---|---|---|
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C1 | C2 | II | 70°C | 0.2 |
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C5 | C6 | I | 70°C | 2.5 |
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C7 | C8 | II | 70°C | 2.5 |
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C13 | C14 | I | 70°C | 10.0 |
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C15 | C16 | I | 120°C | 10.0 |
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C15A | C16A | I | 155°C | 10.0 |
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C17 | C18 | II | 70°C | 10.0 |
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C19 | C20 | I | 70°C | 16.0 |
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C21 | C22 | I | 155°C | 16.0 |
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