What size is a 13 amp plug?

A 13 amp plug, also known as a BS 1363 plug or UK plug, is the standard electrical plug used in the United Kingdom. It is widely recognized for its distinctive rectangle shape with three rectangular pins. Let's dive deeper into the specifications and dimensions of a 13 amp plug.

The Dimensions

The dimensions of a 13 amp plug are specified by the British Standards Institution (BSI). The plug measures approximately 75mm in length, 58mm in width, and 28mm in height. These dimensions include the body of the plug, excluding the pins.

The Pins

A 13 amp plug features three rectangular pins, each serving a different purpose. The largest pin, also known as the Earth pin, provides a grounding connection for safety purposes. It has a thickness of 4.8mm and a length of 21.4mm. The two smaller pins, live and neutral, have a thickness of 4.0mm and a length of 18.3mm. The pins are arranged in a specific configuration to ensure correct insertion into a socket.

The Fuse

One of the key components of a 13 amp plug is the fuse. The plug contains a built-in fuse rated at 13 amps, which acts as a safety device. In case of an overload or short circuit, the fuse will break the circuit and prevent any damage to the connected appliance or wiring. It is essential to choose the correct fuse rating based on the power consumption of the appliance to ensure proper protection.

In conclusion, a 13 amp plug is the standard electrical plug used in the United Kingdom. Its dimensions adhere to the specifications set by the BSI, and it features three rectangular pins for grounding, live, and neutral connections. The built-in fuse provides protection against overload and short circuits. Understanding the size and components of a 13 amp plug is essential for electrical safety in the UK.