3HF4

Technical Characteristics

• Switch Actuating Force

  48.0 ounces maximum

• Criticality Code Justification

  feat

• Special Features

  weapon system essential

• Housing Height

  1.906 inches nominal

• Contact Load Current Rating At Maximum Rated Voltage

  250.000 milliamperes resistive dc and 15.000 amperes resistive ac

• Inclosure Type

  fully inclosed

• Housing Width

  1.000 inches nominal

• Actuator Movement

  0.156 overtravel inches minimum and 0.125 pretravel inches maximum and 0.020 differential inches nominal

• End Item Identification

  b-52 stratofortress b-52, stratolifter c-135 aircraft.

• Nonpile-Up Contact Arrangement

  1 pole, double throw, both positions maintained single switch unit

• Terminal Type And Quantity

  3 screw

• Maximum Voltage Rating In Volts

  460.0 ac and 250.0 dc

• Switch Release Force

  8.0 ounces minimum

• Center To Center Distance Between Housing Mounting Facilities Parallel To Length

  1.000 inches nominal