220-240V - AC. 50Hz Single Phase consuming 17 watts. These fans are double insulated and do not require an earth. All wiring must comply with current IEE regulations. A double pole isolating switch, having a contact separation of at least 3mm in all poles, must be used with a 3 amp fuse fitted. The fan must not be accessible to a person using either the shower or bath and should be mounted a minimum of 1.8 metres from the floor.