These chrome-plated metal buttons are rugged and weatherproof and look real good while doing it! Simply drill a 16mm hole into any material up to 1/2" thick and you can fit these in place, there's even a rubber gasket to keep water out of the enclosure. On the front of the button is a flat metal actuator, surrounded by a red plastic LED ring. On the back there are 3 contacts for the button (common, normally-open and normally-closed) and 2 for the red LED ring (+ and -). Connect 3 to 6V to the LED to have it light up nicely, there's a built in resistor! If you want to use this with a higher voltage, say 12V or 24V, simply add a 470 ohm resistor in series with the LED connection to keep the LED current at around 20mA.This button is a momentary push button, when you press it the 'normally-open' contact shorts to the common contact. When you release it, the contacts open up again.The switch and LED are separated, so you could wire it to turn on when pressed or vice versa or whatever you wish!Technical Details: Drill hole diameter: 16mm Switch rating: 3A / 250VDC Switch contacts: 1 NO, 1 NC Material: Chrome plated brass Grade: IP40/IP67 Contact resistance: < 50 mOhm Insulation resistance: > 1000 Mohm Temperature: -20 C to +55 C Mechanical life: > 500,000 Electrical life: > 50,000 Panel thickness: 1-13mm Operating pressure: 1.5 - 2.5 N Operating stroke: 2mm Lamp rated voltage: 6V
