21902MC

Technical Characteristics

• Knob Manufacturer Part Number

  a

• Pole Quantity

  1 each section rear

• Switch Actuator Positioning Increment

  45.0 degrees single actuator

• Style Designator

  tap, circuit selector

• Mounting Method

  flange single mounting facility and threaded hole single mounting facility

• Contact Switching Action

  makes before breaks each section rear

• Longest Horizontal Distance Between Mounting Centers

  2.297 inches nominal single mounting facility

• Features Provided

  actuator knob

• Shaft Length

  1.125 inches nominal single actuator

• 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 Width

  2.813 inches nominal

• Overall Length

  3.500 inches nominal

• Longest Vertical Distance Between Mounting Centers

  2.297 inches nominal single mounting facility

• Switch Contact Basic Design

  nonpile-up symmetrical

• Shaft Type

  rectangular/square, threaded hole single actuator

• Special Features

  jumpers @a-a,b-b,and c-c

• Switch Actuator Stop Device Type

  adjustable stop single actuator

• Throw Quantity

  3 each section rear

• Contact Load Current Rating

  10.0 amperes resistive load ac at sea level

• Overall Height

  2.813 inches nominal

• Thread Quantity Per Inch

  24 single mounting facility

• Hazardous Locations/Environmental Protection

  dustproof

• Thread Series Designator

  unc single mounting facility

• Knob Manufacturer Code

  82121

• Square Shaft Size

  0.250 inches nominal single actuator

• Individual Section Quantity

  2

• Nominal Thread Size

  0.190 inches single mounting facility