Single Phase 480 To 120/240 Transformer Wiring Diagram

If you’re looking to wire up a single phase 480 to 120/240 transformer, you’ve come to the right place! In this article, we’ll walk you through the process step by step so you can get your transformer up and running in no time.

Transformers are essential in electrical systems for stepping up or stepping down voltage levels. In this case, a single phase 480 volt transformer will be used to step down the voltage to 120/240 volts, which is commonly used in residential and small commercial applications.

Single Phase 480 To 120/240 Transformer Wiring Diagram

Before you start wiring your transformer, make sure you have the necessary tools and materials on hand. You’ll need wire strippers, electrical tape, wire nuts, and of course, the transformer itself. It’s also important to follow all safety precautions and turn off power to the circuit before beginning any work.

First, identify the primary and secondary terminals on your transformer. The primary terminals will be labeled H1, H2, and H3, while the secondary terminals will be labeled X1, X2, and X3. Make sure to double-check the manufacturer’s instructions for your specific transformer model.

Next, connect the primary side of the transformer to the 480-volt power source. Connect H1 to one leg of the power source, and H3 to the other leg. H2 will be left unconnected in this configuration. Be sure to secure the connections with wire nuts and electrical tape.

Finally, connect the secondary side of the transformer to your 120/240-volt load. Connect X1 to one leg of the load, and X3 to the other leg. X2 will be the center tap for the 240-volt load. Again, make sure to secure all connections properly to ensure a safe and reliable installation.

Once you have completed the wiring, double-check all connections and ensure everything is secure. Turn on the power and test the transformer to make sure it is functioning correctly. If everything checks out, you’re all set! Your single phase 480 to 120/240 transformer is now wired and ready to use.