Power Cables: Two Methods for Powering Your Signage

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When setting up illuminated signage, ensuring a reliable and safe power connection is crucial. The method of connecting your sign to a power source can vary depending on the size and power requirements of the sign. Smaller signs often utilize a simpler daisy-chain method, which allows for linking multiple sections with fewer cables. In contrast, larger signs, which draw more power, generally require a more robust setup with individual cables connecting each section directly to the main power source. Below, we outline specific instructions for setting up both types of connections to ensure your signage operates efficiently and safely.

For Smaller Signs

  1. Connect the Main Power Cable:

    • Start by plugging one end of the first power cable into your main power source. This could be your junction box or another designated power outlet.
  2. Daisy Chain the Power:

    • Take the second power cable and connect one end to an output connector on the first sign section that is already powered.
    • Connect the other end of this second cable to the input connector on the next sign section to transfer power.

For Larger Signs (More than 20 amps)

  1. Connect Individual Power Cables:

    • Each sign section will have its own power cable. Start by connecting one end of a power cable to the sign section.
  2. Route to Main Power Source:

    • Route the other end of each power cable to your junction box or main power source.
  3. Secure Connections:

    • Ensure all connections are secure and properly insulated to prevent any electrical hazards.
  4. Test Your Setup:

    • Once all connections are made, power on your signs to test if each section lights up properly and check for any electrical faults.

General Safety Tips

  • Always ensure that the power is OFF at the main source before connecting or disconnecting cables.
  • Use cables and connectors that meet the electrical requirements of your sign and local electrical codes.
  • Consider labeling cables and connectors to facilitate easier maintenance and troubleshooting.
  • Regularly inspect your connections and cables for wear and tear to prevent electrical hazards.


Setting up power connections for signage requires attention to detail and adherence to safety standards, especially when dealing with electrical components. By following the steps outlined above for smaller and larger signs, you can ensure a safe and effective setup that will keep your signs illuminated and functioning properly for years to come.

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