S-20A

Technical Characteristics

• Mounting Facility Quantity

  4 single group

• Overall Width

  3.562 inches maximum

• Input-Output Phase Relationship

  three phase to single phase single component and three phase to three phase single component

• Winding Operating Current

  12.0 amperes dc nominal single component 3rd secondary

• Nominal Thread Size

  0.164 inches single group

• Winding Operating Voltage

  43.75 ac volts nominal single component 1st secondary

• Mounting Method

  threaded stud single group

• Terminal Type And Quantity

  38 turret

• Winding Operating Voltage

  43.75 ac volts nominal single component 2nd secondary

• Inclosure Type

  fully inclosed

• Overall Length

  4.255 inches nominal

• Winding Operating Voltage

  17.50 ac volts nominal single component 3rd secondary

• Winding Shielding Method

  internal shield brought out to terminal single component

• Winding Function And Quantity

  1 primary single component and 12 secondary single component

• Reliability Indicator

  not established

• Frequency Rating

  400.0 hertz nominal single component

• Specification/Standard Data

  30003-247asc1286-001featgone primary and fourteen secondary; secondaries have full wave rectified government specification

• Winding Operating Current

  2.5 amperes dc nominal single component 1st secondary

• Winding Operating Voltage

  22.50 ac volts nominal single component 4th secondary

• Thread Series Designator

  unc single group

• Body Height

  3.062 inches maximum

• Winding Operating Current

  2.5 amperes dc nominal single component 2nd secondary

• Body Length

  3.875 inches maximum

• Transformer Winding Connection Type

  wye-open delta and taylor

• Center To Center Distance Between Mounting Facilities Parallel To Length

  2.609 inches minimum single mounting facility single center group and 2.641 inches maximum single mounting facility single center group

• Winding Operating Voltage

  200.00 ac volts nominal single component single primary

• Overall Height

  3.062 inches maximum

• Center To Center Distance Between Mounting Facilities Parallel To Width

  2.109 inches minimum single mounting facility single center group and 2.141 inches maximum single mounting facility single center group

• Thread Direction (Non-Core)

  err-070

• Winding Operating Current

  5.0 amperes dc nominal single component 4th secondary

• Body Width

  3.562 inches maximum