B1278

Technical Characteristics

• Distance Between Mounting Facility Centers

  1.750 inches nominal single mounting facility single center group

• Nominal Thread Size

  0.138 inches single group

• Winding Operating Voltage

  115.00 ac volts nominal single component all primary

• Thread Series Designator

  unc single group

• Input-Output Phase Relationship

  single phase to single phase single component

• Reliability Indicator

  not established

• Winding Operating Voltage

  6.30 ac volts nominal single component single secondary

• Body Height

  1.812 inches nominal

• Inclosure Type

  fully inclosed

• Body Width

  1.375 inches nominal

• Body Length

  2.188 inches nominal

• Thread Quantity Per Inch

  32 single group

• Mounting Method

  flange single group and unthreaded hole single group

• Winding Function And Quantity

  2 primary single component and 1 secondary single component

• Mounting Facility Quantity

  2 single group

• Frequency Rating

  50.0 hertz minimum single component and 60.0 hertz maximum single component

• Mounting Hole Diameter

  0.138 inches nominal single group

• Terminal Type And Quantity

  6 tab, solder lug