3 pin plugs are designed so that mains electricity can be supplied to electrical appliances safely. A 3 pin plug consists of three pins (hence the name). Each pin must be correctly connected to the three wires in the electrical cable. Each wire has its own specified colour so as it can be easily identified.

What is the 3 pin plug?

The 3-pin plugs are designed so that electricity can be supplied to electrical appliances safely. Each wire has its own specified color, as shown above and each pin must be correctly connected to the three wires in the electrical cable. ... This type plug is commonly used for heavy appliances such as the air-conditioners.

Is a 3 pin plug better than 2 pin plug?

The 2-pin plug consists of two prongs, one called the 'hot' or 'live' and the other called the 'neutral'. ... 3-pin plugs also limit the amount of power that can flow through the circuit, as compared to a 2-pin plug. Hence 3-pin plugs are safer as compared to 2-pin plugs.