B1028

Technical Characteristics

• Mounting Facility Circle Radius

  3.219 inches nominal single mounting facility

• Flat Height

  0.312 inches nominal single actuator

• Features Provided

  actuator knob

• Knob Manufacturer Part Number

  74089-3

• Mounting Facility Pattern

  four position circular single mounting facility

• Shaft Type

  round, flatted single actuator

• Overall Length

  8.500 inches nominal

• Contact Voltage Rating In Volts

  125.0 ac at sea level

• Overall Height

  4.000 inches nominal

• Terminal Type

  tab w/screw

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Shaft Diameter

  0.375 inches nominal single actuator

• Switch Contact Basic Design

  nonpile-up symmetrical

• Overall Width

  3.375 inches nominal

• Contact Load Current Rating

  10.0 amperes resistive load ac at sea level

• Shaft Length

  0.625 inches nominal single actuator

• First Flat Length

  0.500 inches nominal single actuator

• Thread Series Designator

  unc single mounting facility

• Knob Manufacturer Code

  82121

• Nominal Thread Size

  0.250 inches single mounting facility

• Individual Section Quantity

  20

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Thread Quantity Per Inch

  20 single mounting facility

• Contact Switching Action

  breaks before makes each section front