KN 19 short-travel main switch General data Short-travel main switch for use in membrane keyboards under the overlay or with RK 90 keycaps, 250V, 4A max. A cut- out in the overlay is not required Content KN 19 short-travel main switch 4 - 74 KN 19 4 - 76 4 KN 19 PCB Keyswitches 4 - 73KN 19 short-travel main switch KN 19 short-travel main switch Pict.: 1 NC + 1 NO Pict.: 2 NC/2 NO General data The KN 19 makes it possible to implement a power switch directly in a low-profile data entry system. This eliminates the need for extra switches on the device and additional openings in the overlay. In this way, you can achieve an optimum of safety and a consistent design. The contact opening widths comply with the VDE standards. The KN 19 can also be employed underneath RK 90 keycaps. Other actuation functions (momentary, latching/momentary) available on request. Technical data General information Contact resistance when Recommended key grid 19.05 x 38.1 mm new max. 50 m Capacity input current Dimensions AC max. 100 A Length 37.8 mm Rated motor current AC 4 A 4 Width 18.8 mm Rated filament lamp Overall height 9.7 mm current AC 2,4 A Bouncing time max. 10 ms Mechanical design Mounting on PCB Other specifications Terminals solder terminals Ambient temp. operating Contact system snap-action bridge contact min. -25 C Contact arrangement see order block Ambient temp. operating Contact materials Ag max. +70 C Illumination 1 LED (max. 3 mm) Storage temperature min. -40 C possible Storage temperature max. +80 C Degree of protection IP40 Resistance to constant KN Hot wire ignition acc. environment according to 19 to IEC 60695-2-1 850 C IEC 600 68-2-3 and 2-30 Resistance at variable Mechanical characteristics environment according to 3 Operating force max. 9 N IEC 600 68-2-14 and 2-33 0,15 Operating travel 0,55 mm Approvals ENEC, UL and CSA Robustness max. 100 N Acc. to norm VDE:0630,0750 IEC:1058- 1,601-1 EN:61058,60601-1 Electrical characteristics Operating life AC AC 250 V: 200000 /2A Rated voltage min. AC 12 V 100000 /6A Rated voltage min. DC 12 V Operating life DC 50000(10A/50V=) Rated voltage max. DC 50 V Soldering time max. 3 sec. Rated voltage max. AC 250 V Soldering temperature Ohmic load AC 6 A max. 350 C Ohmic load DC min. 0.1 A Defintion of flame class UL 94 VO Ohmic load DC max. 10 A 4 - 74 PCB Keyswitches