How to Wire a Contactor: 8 Steps (with Pictures) - wikiHow MethodWarningsThings Needed Acquire the contactor. Make sure that the contacts of the contactor are rated in both voltage and current to handle the expected load that will be required by the equipment being powered. Contactors are available from building and construction supply stores, as well as some larger hardware stores.Study the contactor manufacturer information. The manufacturer information will identify the 2 input pins for 120 volts AC control. The may be 2 or more sets of output contacts identified. These contacSee all 8 steps on wwwhowViews: 261K 480 Volt Contactor Wiring | Wiring Diagram And Schematics 480 Volt Contactor Wiring (Jun 17, 2019) - Details about 480 volt contactor wiring has been submitted by Ella Brouillard and tagged in this category. Occasionally, we may have to slightly customize design, color, or even accessories. Wed like a new thought for it and one of them is this 480 volt contactor wiring.