Momentary switch: Push & Hold,ON; Release,OFF There is no pigtails for U19D1 switch.It need to be soldered carefully The switch and LED are separated, LED can be on all the time or only on when switch is on,depending on how you wire it The rated voltage of the LED is 1.8-2.8V, with soldering the resistor in the package, you can fit it for 12V system Great for electromagnetic starter, relay, Horn Button Switch, PC Power Switch or any circuit controls What You Get
1 * pushbutton switch
1 * resistor (680Ω)
1 * wiring instruction

What's the Pushbutton Switch
This is a perfect choice if you are in need of a rugged push button! These metal push buttons are a very tough, small, panel-mount momentary switch with an illuminated red LED ring. It is a SPST with 19mm threading and 1mm pitch. These momentary buttons are rated up to 3A and 250VAC while the LED is rated for 1.8-2.8V

What's the Momentary Switch
Momentary switch, normally open, remain in ON state as long as being pressed

What's the Momentary Switch Used for
Most often momentary switches are used for circuits control in electromagnetic starter, stuff like relay, Horn Button Switch, PC Power Switch or any circuit controls

What's Note
-These switches come with a rubber O-ring which makes them splash resistant but they can NOT be submerged in the water
-The switch is rated up to 3A/250VAC, but the LED is rated for 1.8-2.8V, if you want the switch and LED to work under 12V, you need to add the resistor

What's the Customer Support
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Specifications
Thread depth: 1/2" (12mm)
Head diameter: 7/8" (22mm)
Button diameter: 0.4" (11mm)
Mounting hole size: 3/4" (19mm)
Depth inc contacts: 0.8" (20mm)
Switch combination: 1NO
Operation types: Momentary
Switch rating: 3A/250VAC, 3A/30VDC
LED rating: 15mA, AC/DC 2.8V
Resistor: 680Ω
Head shape: Flat
Enclosure material: Aluminium alloy
Protection level: IP65,IK08