FF138B

Technical Characteristics

• Thread Series Designator

  unf second mounting facility

• Thread Class

  2a first mounting facility

• Overall Width

  2.500 inches nominal

• Thread Class

  2a second mounting facility

• Terminal Type And Quantity

  4 threaded stud contacts

• Coil Quantity

  1

• Overall Height

  2.625 inches nominal

• Nominal Thread Size

  0.188 inches first mounting facility

• Thread Series Designator

  unf first mounting facility

• Nominal Thread Size

  0.312 inches fourth mounting facility

• Mounting Facility Pattern

  in-line single mounting facility

• Main Contact Maximum Voltage Rating In Volts

  12.0 dc

• Nominal Thread Size

  0.312 inches third mounting facility

• Thread Class

  2a fourth mounting facility

• Overall Diameter

  1.640 inches nominal

• Thread Class

  2a third mounting facility

• Mounting Slot Width

  0.281 inches nominal single mounting facility

• Mounting Facility Type And Quantity

  1 slotted hole single mounting facility

• Center To Center Distance Between Mounting Facilities Parallel To Length

  2.125 inches nominal single mounting facility

• Minimum Differential Electrical Operating Rating

  12.0 volts

• Nominal Thread Size

  0.188 inches second mounting facility

• Thread Series Designator

  unf third mounting facility

• Winding Quantity

  1

• Thread Series Designator

  unf fourth mounting facility

• Overall Length

  3.468 inches nominal