TF51-028-01

Technical Characteristics

• Body Length

  5.630 inches minimum and 5.670 inches maximum

• Body Width

  3.980 inches minimum and 4.020 inches maximum

• Mounting Facility Quantity

  6 all groupings

• Mounting Method

  threaded hole all groupings

• Winding Function And Quantity

  1 primary and 3 secondary single component

• Winding Operating Current

  1.0 amperes ac maximum single component 3rd secondary

• Winding Operating Current

  50.0 amperes ac maximum single component 1st secondary

• Winding Operating Current

  50.0 amperes ac maximum single component 2nd secondary

• Winding Operating Voltage

  200.00 ac volts nominal single component single primary

• Winding Operating Voltage

  27.25 ac volts nominal single component 1st secondary

• Winding Operating Voltage

  27.25 ac volts nominal single component 2nd secondary

• Test Data Document

  08748-tf51-028 drawing

• Terminal Type And Quantity

  1 terminal block w/screws and 8 wire lead

• Winding Operating Voltage

  30.50 ac volts nominal single component 3rd secondary

• Thread Series Designator

  unc all groupings

• Thread Class

  2b all groupings

• Thread Direction

  right-hand all groupings

• Reliability Indicator

  not established

• Input-Output Phase Relationship

  three phase to three phase single component

• Maximum Operating Temp

  170.0 deg celsius

• Inclosure Type

  fully inclosed

• Nominal Thread Size

  0.138 inches all groupings

• Winding Tap Location

  neutral tap single component 2nd secondary

• Winding Operating Current

  5.5 amperes ac maximum single component single primary

• Overall Height

  6.630 inches minimum and 6.670 inches maximum

• Frequency Rating

  400.0 hertz nominal single component

• Transformer Winding Connection Type

  wye-delta-wye

• Maximum Transformer Power Rating

  3.0 kilovolt-ampere single component

• Winding Shielding Method

  internal shield brought out to terminal single component