Switch level: AC-15 36V/10A 110V/ 10A 220V/5A 380V/2.7A 660V/1.8A DC-6V/4A 12/4A 24V/4A 48V/4A 110V/2A 220V/1A 440V/0.6A; Mechanical life: Generally, the key n is equal to 100x10^4 ; the knob is more than 30 x 10^4 ; Press n more than 5 x 10^4 ; emergency stop button more than 5 x 10^4 . Often used as car horn, ignition switch and doorbell : PBS-33b: PBS-33B Mounting hole diameter: 12mm Ratings: 3A 250V, 6A 125VAC Ambient temperature: -25Celsius~+40Celsius Altitude: less than 2000m Relative humidity of : less than 90% Dielectric strength: Greater than 1500VAC/1min Protection class: IP55 Electric shock resistance: less than 50m ohm Insulation resistance: greater than 10m ohm Colour:red/yellow/green/blue/white/black (random color, ' accept the specified color) Material: ABS Package Contents: 10 x Button switch Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.