Electrical wire size is sold in square mm unit in India. Electrical wires sizes start from 1.0 Sq mm and can go up to 6 Sq mm for domestic / home purposes. Find the chart below for the electrical wire sizes and its purposes.
|Wire Size (Square mm)||Functionality/Purpose|
|1 Sq mm Wires||Earthing Purpose|
|1.5 Sq mm Wires||Distribution purpose, from switchboard to lighting/fan points|
|2.5 Sq mm Wires||Distribution Board (DB) to mainboards in a room|
|4.0 Sq mm Wires||Geyser/Heaters, Electrical Induction stove, other electrical appliances which require 15 Amperes|
|6 Sq mm Wires||For Air conditioners (up to 1.5 Tons capacity)|