20543-72

Technical Characteristics

• Fragility Factor

  moderately rugged

• Nominal Thread Size

  0.138 inches single mounting facility

• Overall Height

  2.938 inches nominal

• Operating Voltage Rating And Type At Specified Temp

  28.0 volts teardrop, two holes type 4f single winding

• Mounting Facility Type And Quantity

  3 threaded stud single mounting facility

• Storage Type

  general purpose warehouse

• Nonpile-Up Main Contact Arrangement

  2 pole, double throw, one position momentary

• Environmental Protection

  hermetic

• Center To Center Distance Between Mounting Facilities Parallel To The Altitude Of An Isosceles Triangle

  1.188 inches nominal single mounting facility

• Coil Quantity

  1

• Cubic Measure

  6.859 cubic inches

• Thread Series Designator

  unc single mounting facility

• Duty Type

  continuous

• Contact Material

  metal

• Arc Quenching Method

  air

• Thread Quantity Per Inch

  32 single mounting facility

• Precious Material And Location

  contacts palladium

• Winding Quantity

  1

• Thread Class

  2a single mounting facility

• Case Material

  metal

• Thread Direction

  right-hand single mounting facility

• Terminal Type And Quantity

  8 wire hook all functions

• Mounting Facility Pattern

  triangle single mounting facility

• Overall Width

  1.422 inches minimum and 1.437 inches maximum

• Precious Material

  palladium

• Overall Length

  1.610 inches minimum and 1.625 inches maximum

• Purpose For Which Designed

  general