3 phase power allows you to have 415V and 240V power from the same electricity supply. 3 phase power on the Central Coast has 4 wires. 3 actives and 1 neutral supplying both 240v and 415V power. Therefore, it can triple the amount of electrical power coming into your Central Coast home or business. 3 phase power is commonly used in commercial or industrial buildings where more powerful equipment may be utilised