4557A

Technical Characteristics

• Thread Class (Non-Core)

  err-070

• Input-Output Phase Relationship

  single phase to single phase single component

• Frequency Rating

  60.0 hertz nominal single component

• Inclosure Type

  hermetically sealed

• Thread Series Designator

  unc single group

• Nominal Thread Size

  0.138 inches single group

• Overall Height

  2.968 inches maximum

• Winding Power Rating

  750.0 milliwatts single component single secondary

• Winding Operating Voltage

  165.00 ac volts nominal single component single secondary

• Reliability Indicator

  not established

• Body Width

  1.437 inches minimum and 1.562 inches maximum

• Body Height

  1.937 inches minimum and 2.125 inches maximum

• Distance Between Mounting Facility Centers

  1.250 inches nominal single mounting facility single center group

• Winding Function And Quantity

  1 primary single component and 1 secondary single component

• Winding Operating Voltage

  100.00 ac volts nominal single component single primary

• Thread Quantity Per Inch

  32 single group

• Mounting Method

  threaded stud single group

• Body Length

  1.437 inches minimum and 1.562 inches maximum

• Mounting Facility Quantity

  2 single group

• Terminal Type And Quantity

  4 standoff, solder lug