If a hot or neutral inside the motor touches the casing, the casing will be energized, resulting in a “fault current” through the ground wire. The ground wire (green) safely moves that fault current into the breaker panel, tripping the circuit. Don't connect anything to the ground. The equipment distribution box is designed with the primary function of collecting electrical energy from the main supply line and distributing it to different points for further use inside the building. It helps organize, protect, and control electrical connections in residential, commercial, and industrial electrical systems.