R138

Technical Characteristics

• Thread Direction

  right-hand

• Center To Center Distance Between Mounting Facilities Parallel To Width

  2.125 inches nominal

• Input-Output Phase Relationship

  single phase to single phase

• Body Width

  3.062 inches nominal

• Body Height

  4.875 inches maximum

• Mounting Facility Quantity

  4

• Thread Quantity Per Inch

  32

• Nominal Thread Size

  0.164 inches

• Thread Series Designator

  unc

• Terminal Type And Quantity

  32 solder stud

• Thread Class

  2a

• Reliability Indicator

  not established

• Center To Center Distance Between Mounting Facilities Parallel To Length

  2.625 inches nominal

• Frequency Rating

  400.0 hertz nominal

• Winding Shielding Method

  internal shield grounded to inclosure

• Body Length

  3.562 inches nominal

• Inclosure Type

  hermetically sealed

• Mounting Method

  threaded stud

• Winding Function And Quantity

  1 primary and 15 secondary