Extractor fan wiring - DIYWiki IntroductionBasic RequirementsWiring PlansSee AlsoExtractor fans in bathrooms are frequently powered from a lighting circuit. This is because many include a "run on" capability that is triggered by the operation of the light switch, and it is not permitted to have a device powered from two separate circuits. Also UK bathrooms have traditionally not included power sockets, so it is common to not have any general purpose power circuits available in the room. Fans in other locations may be mSee more on wikiaq 3 Pole Fan isolator Switch Wiring Diagram | autocardesign 3 Pole Fan isolator Switch Wiring Diagram– wiring diagram is a simplified standard pictorial representation of an electrical circuit shows the components of the circuit as simplified shapes, and the knack and signal associates in the middle of the devices. GREENWOOD EL100 INSTALLATION INSTRUCTIONS MANUAL Pdf Page 6: Wiring Diagrams Wiring Details for Fan Isolator Only Wiring Diagrams The electrical connections must be carried out Mains To Fan 24 V 230 V ~ 50 Hz by a qualified electrical engineer in accordance 25 mm with IEE or local regulations. 2–Wire Connection WARNING: Isolate electricity supply before 1 2 3 6 mm..