W-8257

Technical Characteristics

• Frequency Rating

  50.0 hertz nominal single component or 60.0 hertz nominal single component

• Mounting Facility Quantity

  4 single group

• Thread Direction (Non-Core)

  err-070

• Nominal Thread Size

  0.250 inches single group

• Unpackaged Unit Weight (Non-Core)

  20.000 pounds

• Thread Series Designator

  unc single group

• Winding Power Rating

  450.0 volts-amperes single component single secondary

• Terminal Type And Quantity

  6 solder stud

• Inclosure Type

  hermetically sealed

• Winding Operating Voltage

  115.00 ac volts nominal single component single primary

• Input-Output Phase Relationship

  single phase to single phase single component

• Thread Class (Non-Core)

  err-070

• Winding Operating Current

  15.0 amperes ac maximum single component single secondary

• Reliability Indicator

  not established

• Maximum Operating Temp

  105.0 deg celsius

• Overall Height

  7.500 inches maximum

• Winding Function And Quantity

  1 primary single component and 1 secondary single component

• Body Height

  6.750 inches maximum

• Mounting Method

  threaded stud single group

• Body Length

  5.500 inches maximum

• Winding Operating Voltage

  26.00 ac volts nominal single component single secondary and 28.00 ac volts nominal single component single secondary and 30.00 ac volts nominal single component single secondary

• Center To Center Distance Between Mounting Facilities Parallel To Length

  3.703 inches minimum single mounting facility single center group and 3.797 inches maximum single mounting facility single center group

• Center To Center Distance Between Mounting Facilities Parallel To Width

  2.953 inches minimum single mounting facility single center group and 3.047 inches maximum single mounting facility single center group

• Body Width

  4.500 inches maximum