Dyna Mechanical Speed Switches

Eight basic mounting styles, four construction styles, and four wiring configurations allow these mechanical speed switches to be used on engines of many sizes and types.


  • Sealed cap
  • Sealed ball bearings
  • Internal elastomeric coupling
  • Explosion proof housing
  • Snap-action switches
  • Aluminum castings
  • Flexible drive shaft
  • Operates either clockwise or counter-clockwise