Thumb Wheel Switches
Specifications
» No. of dial positions: 8,10 and 16 (stops available)
» Electrical life: 100, 000 detents
» Contact rating: 125 milliamps @ 28 V AC or DC resistive load 1 amp (unswitched)
» Contact resistance: 100 milli ohms. Max. initial
» Insulation resistance 1000 megohms min.
» Dielectric strength : 750 V AC @ sea level
» Operating temperature: Optg (- 25 deg. To + 7 Deg. C)
» Storage: (- 40 deg to + 85 deg. C)
Materials and Finishes:
» Body, Wheel , Lever: Engineering plastics, Polycarbonate, ABS and Acetal as required
» Wiper: Copper alloy heat treated and plated Gold over Nickel
» PCB: Glass Epoxy (Neema FR4) plated Gold over Nickel
» Springs: Stainless steel wire (wherever applicable)
Output codes:
Octal, Decimal, BCD, BCD Complement, 7 segment decoder, Binary coded hexa-decimal and complement Kelvin-Varley
Hermetically sealed type in series 80 is available.
SERIES TWS - 80
Integral Type TWS-80 Thumb Wheel Switches are high quality switches of small size for use in a wide variety of applications in Instrumentation...
SERIES SL - 82
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SERIES SL - 83
Integral Type SL-83 Series Thumb Wheel Switches are slim compact switches of high quality used in a wide variety of applications in Instrumentation...
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THUMB WHEEL PRESET SWITCHES: SERIES 88
Series 88 is a Thumb Wheel Switch offering the most economical method of handsetting coded values..