The uk to iec c15 mains cable more commonly known as a kettle lead is used for powering a variety of electrical appliances such as pc base units monitors printers photocopiers and a whole host of other equipment including high temperature devices such as kettles the c15 connector although similar in appearance to the c13 has a higher temperature rating of 170 degrees rather than 70 degrees you can tell the difference between a c13 and a c15 connector by the notch in the connector thi