NSN: 5930-00-618-7147

Technical Characteristics

• Knob Manufacturer Part Number

  a

• Overall Height

  6.000 inches nominal

• Mounting Facility Pattern

  four position circular 1st mounting facility

• Style Designator

  tap, circuit selector

• Features Provided

  actuator knob

• Knob Special Markings

  arrow

• Longest Horizontal Distance Between Mounting Centers

  3.750 inches nominal 2nd mounting facility

• Mounting Facility Pattern

  four position rectangular 2nd mounting facility

• Individual Section Quantity

  7

• Hazardous Locations/Environmental Protection

  explosion proof

• Terminal Type

  tab w/screw

• Unthreaded Mounting Hole Diameter

  0.406 inches nominal 2nd mounting facility

• Mounting Method

  bracket 2nd mounting facility and unthreaded hole 2nd mounting facility

• Unthreaded Mounting Hole Diameter

  0.406 inches minimum 1st mounting facility and 0.410 inches maximum 1st mounting facility

• Throw Quantity

  3 each section front

• Mounting Facility Circle Radius

  2.672 inches nominal 1st mounting facility

• Switch Contact Basic Design

  nonpile-up symmetrical

• Overall Length

  8.813 inches nominal

• Mounting Method

  bracket 1st mounting facility and unthreaded hole 1st mounting facility

• Longest Vertical Distance Between Mounting Centers

  5.250 inches nominal 2nd mounting facility

• Contact Voltage Rating In Volts

  500.0 ac at sea level

• Overall Width

  4.750 inches nominal

• Knob Manufacturer Code

  82121

• Pole Quantity

  1 each section front

• Switch Actuator Indexing Position Quantity

  3 single actuator

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Contact Switching Action

  breaks before makes each section front

• Contact Load Current Rating

  60.0 amperes resistive load ac at sea level