6439 1-2

Technical Characteristics

• Voltage In Volts

  250.0

• Fuse Terminal Type Accommodated

  ferrule

• Current Carrying Rating In Amps

  30.0

• Screw Thread Quantity Per Inch

  32.0

• Screw Thread Diameter

  0.138 inches nominal

• Bushing Hole Diameter

  0.874 inches nominal

• Resistor Rating

  120.0 kilohms

• Accommodated Ferrule Diameter

  0.250 inches nominal

• Lens Color

  clear

• Environmental Protection

  any acceptable

• Overall Width

  1.180 inches minimum and 1.185 inches maximum

• Overall Length

  3.875 inches nominal

• Terminal Type And Quantity

  4 threaded stud

• Center To Center Distance Between Keyway And Bushing Hole

  0.469 inches nominal

• Center To Center Distance Between Bushing Holes

  0.800 inches nominal

• Center To Center Distance Between Outside Mounting Holes Along Width

  0.938 inches nominal

• Length From Front Protrusion To Mounting Surface

  0.188 inches nominal

• Accommodated Fuse Length

  1.250 inches nominal

• Fuse Accommodation Quantity

  2

• Interruption Indicator Method

  neon lamp

• Contact Surface Treatment

  nickel plated

• Contact Material

  beryllium copper

• Mounting Hole Style

  f23 2 bushing mounting w/2 holes

• Mounting Hole Quantity

  2

• Mounting Hole Diameter

  0.156 inches nominal

• Overall Height

  1.812 inches minimum and 1.817 inches maximum

• Body Style

  d4 panel mounted type