How to Wiring Illuminated Metal Push Button Switch

Wiring an illuminated metal push button switch may seem daunting at first, but with the right steps, it becomes a straightforward task. This type of switch combines the durability of a metal button switch with the functionality of illumination, making it ideal for various applications, from industrial control panels to home DIY projects.

First, gather your tools: wire strippers, screwdrivers, and the push button switch itself. Most illuminated metal push button switches have multiple terminals: two for the switch mechanism and two for the LED or light source. Identify these terminals—often labeled "NO" (normally open), "NC" (normally closed), "COM" (common) for the switch, and "+" and "-" for the illumination.

Start by turning off the power to the circuit to avoid electrical hazards. Strip the ends of your wires to expose about 1/4 inch of copper. For the switch function, connect one wire from your power source to the "COM" terminal. Then, connect a wire from the "NO" terminal to the device you want to control (like a motor or light). This setup ensures the circuit closes when the metal push button switch is pressed.

Next, handle the illumination. If your switch uses an LED, connect the positive wire from your power supply to the "+" terminal and the negative wire to the "-" terminal. Ensure the voltage matches the switch’s specifications to prevent damage. For incandescent illumination, the wiring is similar, with no strict polarity, but always check the manufacturer’s instructions.

Finally, secure all connections with screws, tuck the wires neatly, and test the switch by turning on the power. Pressing the metal button switch should activate both the connected device and the built-in light, confirming a successful wiring job. With these steps, you’ll have your illuminated push button switch working efficiently in no time.