Generator Manual Transfer Switch Installation 4 Prong Generator Plug Wiring Diagram

Figure 4 wiring diagram of a manual transfer switch in the off position figure 5 wiring diagram of a manual transfer switch in the on.

Generator manual transfer switch installation 4 prong generator plug wiring diagram.

Many systems do not switch the neutral wire and tie the three neutral wires together. Replace that wire with the red wire from the transfer switch marked a splice the black wire marked a from the transfer switch to the removed power wire using a wire nut. Click on picture for larger view. Any existing electrical wiring within the immediate area that may interfere with the installation of the generator transfer switch may need to be relocated if necessary.

Repeat this process for all 10 circuits ensuring the red and black wires from the transfer switch are a matched pair. He also showed an interconnect switch which wires to the main breaker panel and allows the entire panel to be energized by the generator. Installing a generator and transfer switch must be well thought out and performed with a permit with all of the work being inspected. Verify the method of wiring with your transfer switch and generator before installation.

Manual transfer switches require an operator to change the power source while automatic switches detect the loss of power start the back up generator and switch over to the backup power feed.