121908LY

Technical Characteristics

• Knob Manufacturer Part Number

  a

• Pole Quantity

  1 each section rear

• Style Designator

  tap, circuit selector

• Contact Switching Action

  breaks before makes each section rear

• Features Provided

  actuator knob

• Shaft Type

  round, flatted single actuator

• Shaft Length

  1.125 inches nominal single actuator

• Individual Section Quantity

  8

• Overall Height

  2.500 inches nominal

• Contact Voltage Rating In Volts

  125.0 ac at sea level

• Mounting Facility Pattern

  four position rectangular single mounting facility

• Terminal Type

  tab w/screw

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Overall Length

  4.125 inches nominal

• Switch Contact Basic Design

  nonpile-up symmetrical

• Flat Height

  0.219 inches nominal single actuator

• Throw Quantity

  3 each section rear

• Overall Width

  2.500 inches nominal

• Contact Load Current Rating

  10.0 amperes resistive load ac at sea level

• Longest Horizontal Distance Between Mounting Centers

  1.641 inches nominal single mounting facility

• Thread Quantity Per Inch

  24 single mounting facility

• Hazardous Locations/Environmental Protection

  dustproof

• Mounting Method

  threaded hole single mounting facility

• Longest Vertical Distance Between Mounting Centers

  1.641 inches nominal single mounting facility

• Thread Series Designator

  unc single mounting facility

• Knob Manufacturer Code

  82121

• Thread Class

  2b single mounting facility

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Nominal Thread Size

  0.190 inches single mounting facility

• Shaft Diameter

  0.250 inches nominal single actuator

• First Flat Length

  0.750 inches nominal single actuator