Designing Technology into Solutions
 
 

3

Thumbwheel Switches

3, Thumbwheel

Features/Benefits

  • Most complete product offering in the industry
  • Spacers available to fit most panel cutouts
  • Front or rear mounting options

Typical Applications

  • Test & measurement equipment
  • Industrial equipment
  • Computer devices

Specifications

  1. CONTACT RATING:
  2. CARRY: 1 AMP continuous.
  3. SWITCH: 100 mA max.
  4. OPERATING VOLTAGE: 50 mV to 28 V DC or 120 V AC.
  5. ELECTRICAL LIFE: 100,000 actuations.
  6. CONTACT RESISTANCE: Below 100 m Ω typ. initial @ 2-4 V DC, 100 mA.
  7. INSULATION RESISTANCE: 109 Ω min.
  8. DIELECTRIC STRENGTH: 500 Vrms min. @ sea level between common terminal and any output.
  9. OPERATING TEMPERATURE: -40ºC to 65ºC.

Materials

  1. HOUSING: ABS plastic.
  2. THUMBWHEEL: ABS plastic.
  3. ROTOR CONTACTS: Precious metal on copper alloy.
  4. STATOR CONTACTS: Hard gold over nickel over copper on epoxy fiberglass.