53-1979

Technical Characteristics

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• Shaft Flat/Slot Angular Location

  191.0 degrees from nonturn device single actuator

• Switch Actuator Positioning Increment

  22.5 degrees single actuator

• Contact Switching Action

  breaks before makes each section rear

• Err Default

  err default

• Shaft Diameter

  0.250 inches nominal single actuator

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Nonturn Device Type

  slotted bushing at 3:00 o'clock

• Rotor Through Connection Quantity

  4 each section

• Precious Material And Location

  contact surfaces gold

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Overall Diameter

  1.500 inches maximum

• Contact Load Current Rating

  3.0 amperes resistive load dc at sea level and 2.0 amperes inductive load dc at sea level

• Thread Series Designator

  unef single mounting facility

• Switch Contact Basic Design

  nonpile-up symmetrical

• Overall Length

  3.090 inches nominal

• Terminal Type

  tab, solder lug

• Throw Quantity

  4 each section rear

• Thread Class

  2a single mounting facility

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Pole Quantity

  4 each section front

• Contact Load Current Rating

  5.0 amperes resistive load ac at sea level

• Mounting Method

  threaded bushing single mounting facility

• Hazardous Locations/Environmental Protection

  explosion proof

• Shaft Length

  0.380 inches nominal single actuator

• Precious Material

  gold

• Shaft Type

  round, flatted single actuator

• Nominal Thread Size

  0.375 inches single mounting facility

• Style Designator

  tap, circular, bushing mount

• First Flat Length

  0.250 inches nominal single actuator

• Individual Section Quantity

  4

• Flat Height

  0.210 inches nominal single actuator