B1910J4

Technical Characteristics

• Thread Class

  2a

• Hazardous Locations/Environmental Protection

  dustproof

• First Flat Length

  0.750 inches nominal

• Flat Height

  0.219 inches nominal

• Shaft Diameter

  0.250 inches nominal

• Shaft Length

  1.000 inches nominal

• Knob Manufacturer Part Number

  74000-2

• Switch Contact Basic Design

  nonpile-up symmetrical

• Pole Quantity

  1

• Throw Quantity

  3

• Features Provided

  actuator knob

• Nominal Thread Size

  0.469 inches

• Contact Voltage Rating In Volts

  115.0

• Contact Voltage Rating In Volts

  28.0

• Switch Actuator Indexing Position Quantity

  3

• Shaft Type

  round,flatted,threaded hole

• Terminal Type

  tab w/screw

• Contact Switching Action

  breaks before makes

• Thread Length

  0.375 inches nominal

• Overall Length

  6.625 inches nominal

• Overall Diameter

  2.000 inches nominal

• Nonturn Device Radius

  0.375 inches nominal

• Individual Section Quantity

  10

• Knob Manufacturer Code

  82121

• Knob Special Markings

  arrow symbol

• Nonturn Device Type

  tab

• Mounting Method

  threaded bushing

• Thread Quantity Per Inch

  32

• Switch Actuator Positioning Increment

  45.0 degrees

• Switch Actuator Stop Device Type

  fixed stop

• Contact Load Current Rating

  5.0 amperes resistive load and 2.0 amperes inductive load

• Contact Load Current Rating

  5.0 amperes resistive load and 2.5 amperes inductive load

• Thread Series Designator

  uns