TF251

Technical Characteristics

• Center To Center Distance Between Mounting Facilities Parallel To Length

  5.500 inches nominal single mounting facility single center group

• Input-Output Phase Relationship

  single phase to single phase single component

• Body Width

  7.500 inches nominal

• Mounting Facility Quantity

  4 single group

• Winding Function And Quantity

  2 primary single component and 1 secondary

• Winding Tap Location

  center tap single component single secondary

• Thread Series Designator

  unc single group

• Thread Class

  2a single group

• Reliability Indicator

  not established

• Center To Center Distance Between Mounting Facilities Parallel To Width

  4.125 inches nominal single mounting facility single center group

• Body Length

  8.000 inches nominal

• Body Height

  6.000 inches nominal

• Inclosure Type

  hermetically sealed

• Mounting Method

  threaded stud single group

• Thread Quantity Per Inch

  20 single group

• Nominal Thread Size

  0.250 inches single group

• Winding Operating Voltage

  115.00 ac volts nominal single component 1st primary

• Winding Operating Voltage

  115.00 ac volts nominal single component 2nd primary

• Winding Operating Voltage

  13.20 ac kilovolts nominal single component single secondary

• Terminal Type And Quantity

  7 standoff, solder lug