D-309

Technical Characteristics

• Nominal Thread Size

  0.138 inches single group

• Cubic Measure

  10.9 cubic inches

• Inclosure Type

  fully inclosed

• Body Length

  2.250 inches nominal

• Winding Shielding Method

  internal shield brought out to terminal single component

• Frequency Rating

  50.0 hertz minimum single component and 420.0 hertz maximum

• Thread Class

  2a single group

• Terminal Type And Quantity

  8 wire lead

• Thread Series Designator

  unc single group

• Winding Operating Voltage

  20.00 ac volts nominal single component 2nd secondary

• Winding Operating Voltage

  170.00 ac volts nominal single component 1st secondary

• Winding Operating Voltage

  115.00 ac volts nominal single component single primary

• Winding Operating Current

  400.0 milliamperes ac maximum single component 2nd secondary

• Winding Function And Quantity

  1 primary single component and 2 secondary

• Mounting Method

  threaded stud single group

• Mounting Facility Quantity

  4 single group

• Maximum Operating Temp

  55.0 deg celsius

• Body Height

  2.440 inches nominal

• Body Width

  2.000 inches maximum

• Input-Output Phase Relationship

  single phase to single phase single component

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.438 inches nominal single mounting facility single center group

• Center To Center Distance Between Mounting Facilities Parallel To Length

  1.688 inches nominal single mounting facility single center group

• Reliability Indicator

  not established

• Thread Direction

  right-hand single group