77-1991

Technical Characteristics

• Contact Load Current Rating

  2.0 amperes resistive load dc at sea level and 0.5 amperes lamp load dc at sea level

• Shaft Length

  0.810 inches nominal 1st actuator

• Overall Length

  3.870 inches nominal

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• Features Provided

  variable resistor

• Contact Switching Action

  breaks before makes each section rear

• Err Default

  err default

• Shaft Diameter

  0.248 inches nominal 1st actuator

• Operating Temp Range

  -55.0/+105.0 deg celsius

• Contact Load Current Rating

  1.0 amperes resistive load ac at sea level

• Style Designator

  tap, circular, bushing mount

• Nominal Thread Size

  0.375 inches single mounting facility

• Pole Quantity

  2 each section front

• Rotor Through Connection Quantity

  2 each section

• Overall Diameter

  1.190 inches maximum

• Shaft Type

  round, hollowed 1st actuator

• Nonturn Device Radius

  0.660 inches maximum at 9:00 o'clock

• Throw Quantity

  6 each section rear

• Individual Section Quantity

  2

• Switch Actuator Indexing Position Quantity

  6 1st actuator

• Shaft Type

  round 2nd actuator

• Switch Actuator Stop Device Type

  fixed stop 1st actuator

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Nonturn Device Type

  tab at 9:00 o'clock

• Shaft Length

  1.120 inches nominal 2nd actuator

• Switch Actuator Positioning Increment

  30.0 degrees 1st actuator

• Thread Series Designator

  unef single mounting facility

• Switch Contact Basic Design

  nonpile-up symmetrical

• Shaft Diameter

  0.123 inches minimum 2nd actuator and 0.126 inches maximum 2nd actuator

• Terminal Type

  tab, solder lug

• Thread Class

  2a single mounting facility

• Mounting Method

  threaded bushing single mounting facility

• Hazardous Locations/Environmental Protection

  explosion proof