Robertson Ballast Wiring Diagram. Newer fluorescent ballasts are usually rated for both 120 volts and 277 volts. In this video i remove and replace a dead ballast from a fluorescent light fixture in my garage. If the fixture is pre wired it will already have jumper wires between the two tubes to allow a single connection to the ballast wiring for the yellow wires in steps 4 and 5.
From the ballast leaving a su cient amount of wire to connect back to the 110 vac power source. If the fluorescent fixture is pre wired use wire nuts to connect the ballast to the fixture wiring. 3 lamp series parallel ballast wiring diagramif one lamp fails or is removed in the series connected section then all lamps in that section will turn off but the lamps in the parallel circuit remain on. If the fixture is pre wired it will already have jumper wires between the two tubes to allow a single connection to the ballast wiring for the yellow wires in steps 4 and 5.
If the fluorescent fixture is pre wired use wire nuts to connect the ballast to the fixture wiring.
Use wire nuts to connect the ballast wiring to household wiring. Robertson ballast wiring diagram wiring diagram is a simplified pleasing pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the power and signal links along with the devices. Strip the load and neutral wires. Fluorescent lamps use a ballast which transforms line voltage to a voltage to start up and operate the lamp s. If the fixture is pre wired it will already have jumper wires between the two tubes to allow a single connection to the ballast wiring for the yellow wires in steps 4 and 5.