UL certification E152635 covering YC-12 C13, YC-20 C15 and YP-32 C14 connectors. Note that the manufacturer's YC-20 label contains an error; the wire gauges (18, 16, 14) are repeated in the "current rating" column; the UL certification contains the correct values (10A, 13A, 15A). Retrieved 2014-09-24. IEC 60320-3: Standard sheets and gauges. [4] First published October 31, 2014, this part initially included the standard sheets for both appliance couplers and interconnection couplers. In a 2018 amendment, the standard sheets for the IP couplers defined by 60320-2-3 were added. [9] For appliance couplers the various coupler outlines are designated using a combination of letters and numbers, e.g., "C14". The connector supplies power to the appliance inlet. The appliance inlet is designated by the even number one greater than the number assigned to the connector, so a C1 connector mates with a C2 inlet, and a C15A mates with a C16A. Interconnection couplers have single letter designators, e.g., "F". They consist of a plug connector and an appliance outlet. The plug connector is the part integral with, or intended to be attached to, the cord, and the appliance outlet is the part integrated with or incorporated into the appliance or equipment or intended to be fixed to it, and from which the supply is obtained. Very common on personal computers and peripherals. Commonly referred to as a "kettle cord" or "kettle lead", [17] [18] but kettles in countries using 120V require the C15/C16. Connector: "part of the appliance coupler integral with, or intended to be attached to, one cord connected to the supply". The IBM Wheelwriter series of electronic typewriters are one common application. Three-wire cords with C13 connectors, which are easier to find, are sometimes used in place of the two-wire cords for replacement. In this case, the ground wire will not be connected.

Australian/New Zealand Standard AS/NZS 60320.1:2004, Appliance couplers for household and similar general purposes Part 1: General Requirements (IEC 60320-1, Ed. 2.0 (2001) MOD). This is the Australian version of the IEC standard with national variations shown. There is some public confusion between C13/C14 and C15/C16 couplers, and it is not uncommon for C13/C14 to be informally referred to as "kettle plug" or "kettle lead" (or some local equivalent). We often find that people are unsure of the difference between mains power cables, or what the IEC standards are. To put it simply, the standards define the mechanical, electrical and thermal requirements and safety requirements of power couplers. Standard sheet C25 shows retaining device dimensions. Sheet C26 shows detail dimensions for pillar-type terminals, where the end of the screw bears on a wire directly or through a pressure plate. Sheet 27 shows details for screw terminals, where the wire is held by wrapping it around the head of a screw.

Please note:

Plug connector: "part of the interconnection coupler integral with or intended to be attached to one cord".

IEC 60320-2-2: Interconnection couplers for household and similar equipment. This section was withdrawn in January 2016. The general requirements for these items were incorporated into IEC 60320-1 and the standard sheets were moved to IEC 60320-3. These cables are sometimes informally referred to as a "kettle cord" or "kettle lead", but the C13/14 connectors are only rated for 70°C (158°F): a device such as a kettle requires the C15/16 connector, rated for 120°C (248°F). For use in high-temperature settings (for example, electric kettle). Also used in some network appliances that provide PoE. a b "IEC 60320-3:2014+AMD1:2018+AMD2:2022 CSV | IEC Webstore". webstore.iec.ch . Retrieved 2023-05-13.The C17/C18 coupler is often used in audio applications where a floating ground is maintained to eliminate hum caused by ground loops. Other common applications are the power supplies of Xbox 360 game consoles, replacing the C15/C16 coupler employed initially, and large CRT televisions manufactured by RCA in the early 1990s. In European countries the C15/C16 coupler has replaced and made obsolete the formerly common types of national appliance coupler in many applications. Similar connector to C5/C6, but with a key ridge instead of an earthing conductor, withdrawn from standard. The C15 connector is similar to a C13 but has an extra notch in the connector, C15 Power Cables are referred to as hot connector as they havea higher temparture rating. Xbox One Power Supply | Xbox One Console". support.xbox.com. Archived from the original on 2016-11-26 . Retrieved 2016-11-25.