77-1981-4

Technical Characteristics

• Thread Class

  2a single mounting facility

• Overall Length

  3.204 inches nominal

• Flat Height

  0.214 inches nominal single actuator

• Shaft Diameter

  0.250 inches nominal single actuator

• Shaft Length

  0.874 inches nominal single actuator

• Overall Diameter

  1.328 inches nominal

• Nonturn Device Radius

  0.375 inches nominal at 3:00 o'clock

• Nonturn Device Type

  tab at 3:00 o'clock

• Operating Temp Range

  -65.0/+85.0 deg celsius

• Switch Contact Basic Design

  nonpile-up symmetrical

• Throw Quantity

  4 each section front

• Contact Voltage Rating In Volts

  30.0

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Terminal Type

  tab, solder lug

• Contact Switching Action

  makes before breaks 5th section front

• Switch Actuator Stop Device Type

  fixed stop single actuator

• ~1

  a level

• Contact Load Current Rating

  50.0 milliamperes resistive load ac at sea level

• Style Designator

  9 tap, circular, bushing mount

• Thread Length

  0.437 inches nominal single mounting facility

• Hazardous Locations/Environmental Protection

  explosion proof

• First Flat Length

  0.250 inches nominal single actuator

• Individual Section Quantity

  4

• Pole Quantity

  3 each section front

• Mounting Method

  threaded bushing single mounting facility

• Nominal Thread Size

  0.375 inches single mounting facility

• Contact Voltage Rating In Volts

  115.0

• Shaft Flat/Slot Angular Location

  225.0 degrees from nonturn device single actuator

• Shaft Type

  round, flatted single actuator

• Contact Switching Action

  breaks before makes 1st section front

• Contact Switching Action

  makes before breaks 2nd section front

• Contact Switching Action

  makes before breaks 3rd section front

• Switch Actuator Positioning Increment

  30.0 degrees single actuator

• Contact Load Current Rating

  200.0 milliamperes resistive load and 100.0 milliamperes inductive load dc at se

• Thread Series Designator

  unef single mounting facility