4D12-90

Technical Characteristics

• Terminal Type And Quantity

  10 turret

• Reliability Indicator

  not established

• Frequency Rating

  400.0 hertz nominal single component

• Input-Output Phase Relationship

  three phase to single phase single component

• Body Length

  2.900 inches nominal

• Body Height

  1.450 inches nominal

• Winding Tap Location

  neutral tap single component single primary

• Winding Operating Current

  2.5 amperes ac maximum single component single secondary

• Winding Operating Voltage

  115.00 ac volts nominal single component single primary

• Winding Operating Voltage

  12.00 ac volts nominal single component single secondary

• Thread Direction

  right-hand single group

• Center To Center Distance Between Mounting Facilities Parallel To Length

  2.500 inches nominal single mounting facility single center group

• Center To Center Distance Between Mounting Facilities Parallel To Width

  2.000 inches nominal single mounting facility single center group

• Transformer Winding Connection Type

  delta-wye or wye-delta

• Body Width

  2.400 inches nominal

• Inclosure Type

  fully inclosed

• Mounting Facility Quantity

  4 single group

• Mounting Method

  threaded stud single group

• Winding Function And Quantity

  1 primary single component and 3 secondary

• Nominal Thread Size

  0.138 inches single group

• Winding Power Rating

  30.0 volts-amperes single component single secondary

• Special Features

  secondary windings can be hooked up as a wye or delta

• Cognizant Service

  usaf

• Thread Series Designator

  unc single group

• Thread Class

  2b single group