IEC 60320
Appliance couplers
The dimensions and tolerances for connectors and appliance inlets are given in standard sheets, which are dimensioned drawings showing the features required for safety and interchangeability.

IEC 60320

Section Title: Appliance couplers
Table Section Text: The dimensions and tolerances for connectors and appliance inlets are given in standard sheets, which are dimensioned drawings showing the features required for safety and interchangeability.

Connector	Appliance inlet	Diagram	Pin spacing, centres (mm)	Earth contact	Appliance class	Rewirable connector allowed?	Max. current (A)	Max. pin temp. (°C)	Remarks and example uses

C1	C2	-	6.6	No	II	No	0.2	70	Not polarized. Electric shaver.

C3	C4	-	10	No	II	2.5	70	Polarized; similar connector to C5/C6 but with a key ridge instead of an earthing conductor, withdrawn from standard.

C5	C6	-	10 (H) 4.5 (V)	Yes	I	No	2.5	70	Many small switched-mode power supplies used for laptops. Commonly referred to as a Clover-leaf or Mickey Mouse connector due to its shape.

C7	C8	-	8.6	No	II	No	2.5	70	-

C9	C10	-	10	No	II	No	6	70	Not polarized. This kind of coupler is used by Roland Corporation for a couple of synthesizer and drum computer models (for example: TR-909) and by Revox for many older models of their HiFi equipment (for example, A76, A77, A78, B77, B225).

C11	C12	-	10	No	II	10	70	Polarized, similar to C9 with a slot in the connector, withdrawn from standard.

C13	C14	-	14 (H) 4 (V)	Yes	I	Yes	10	70	Very common on personal computers and peripherals. Commonly but incorrectly referred to as a "kettle cord", but kettles actually require the C15/C16.

C15	C16	-	14 (H) 4 (V)	Yes	I	Yes	10	120	For use in high temperature settings (for example, electric kettle, computer networking closets). Also used in Cisco Catalyst series switches, Cisco MDS9500 series rack-mounted SAN switches, HP Procurve switches, Dell PowerConnect switches and early Xbox 360 power supplies.

C15A	C16A	-	14 (H) 4 (V)	Yes	I	Yes	10	155	For use in very high temperature settings, such as some stage lighting instruments. Similar to C15/C16, but the top is narrowed to exclude the C15 cord connector.

C17	C18	-	14	No	II	No	10	70	Xbox power supply some vacuum cleaners, CPAP machines, audio equipment, televisions, medical devices.

C19	C20	-	13 (H) 8 (V)	Yes	I	Yes	16	70	Common on Enterprise-class servers, UPSs, datacenter rack-mounted power distribution units and other equipment that draws too much current for C13/C14 type to be used.

C21	C22	-	13 (H) 8 (V)	Yes	I	Yes	16	155	High-temperature variant of C19/C20

C23	C24	-	13	No	II	No	16	70	Ungrounded variant of C19/C20

Sentence(s)

The maximum permitted pin temperatures for IEC 60320 couplers are 70 °C, 120 °C, and 155 °C.

final_sentence: The maximum permitted pin temperatures for IEC 60320 couplers are 70 °C, 120 °C, and 155 °C.