53-1957-4-13

Technical Characteristics

• Overall Diameter

  0.850 inches maximum

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• End Item Identification

  computer display set an/uyq-21

• Contact Switching Action

  breaks before makes each section rear

• Err Default

  err default

• Throw Quantity

  12 each section rear

• Individual Section Quantity

  5

• Style Designator

  tap, circular, bushing mount

• Nominal Thread Size

  0.375 inches single mounting facility

• Shaft Type

  round, flatted single actuator

• Special Features

  shaft is rfi grounded

• Hazardous Locations/Environmental Protection

  explosion proof

• Mounting Method

  threaded bushing single mounting facility

• Switch Actuator Indexing Position Quantity

  12 single actuator

• Thread Class

  2a single mounting facility

• Terminal Type

  tab, solder lug

• Switch Contact Basic Design

  nonpile-up symmetrical

• Thread Series Designator

  unef single mounting facility

• First Flat Length

  0.440 inches nominal single actuator

• Contact Load Current Rating

  250.0 milliamperes resistive load dc at sea level and 120.0 milliamperes inductive load dc at sea level

• Shaft Diameter

  0.248 inches minimum single actuator and 0.251 inches maximum single actuator

• Rotor Through Connection Quantity

  1 each section

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Switch Actuator Positioning Increment

  30.0 degrees single actuator

• Pole Quantity

  1 each section front

• Overall Length

  2.720 inches nominal

• Contact Load Current Rating

  250.0 milliamperes resistive load ac at sea level

• Shaft Length

  0.880 inches nominal single actuator

• Flat Height

  0.211 inches minimum single actuator and 0.221 inches maximum single actuator