AircraftPowerConverterSpecificationDataSheet
28VS50Y‐30
If this document is provided the U.S. Government, Champion Aerospace LLC, provides the document with “Limited Rights”. The
Government's rights to use, modify, reproduce, release, perform, display, or disclose these technical data are restricted by
paragraph (b)(3) of the Rights in Technical Data—Noncommercial Items clause contained within the purchase contract. Any
reproduction of technical data or portions thereof marked with this legend must also repr oduce the m arkings. An y person, other than
the Government, who has been provided access to such data must promptly notify the above named Contractor.
Converter: 50Amperes
Rating:ContinuousDuty,HighSurgeCurrentandOverload
Overload: 100Amperes(200%)for60Secondsand250Amperes(500%)for7Seconds
Cooling: Self‐cooled,Fan
Input: 3Phase115/200VAC380‐420Hz5.0Amperes
Output: 28VoltsDC(Nominal)Positive/NegativeStuds:1/4‐28UNF
Efficiency: >82.5%(FullLoad)
PowerFactor: >0.95(FullLoad)
Weight: 6.65lbsMaximum
Size: OverallDimensionsL9.5XW4.6��XH4.2
inchesmaximum
ReceptacleType: MS27472E16B8P(PinsA,B,C&DarePhaseA,B,C&Neutral)
ThermalSensor:
PinF“High”isNormaland“Low”isOverheat,PinGisreference(‐)
DesignSpecification: GeneralSpecificationforAircraftConvertersMIL‐C‐7115F
1. RippleVoltageMaximum(nominalinputconditions): 
a. 0.5V
pk‐pk
OneHalfofRatedLoad
b. 0.7V
pk‐pk
FullRatedLoad
2. TransientVoltageSurgeSuppression/SurgeProtectionDevice(ClampingVoltage)
40VoltsDCmaximumpeakoutputatfullloadduring180VAC50msecinput
AircraftPowerConverterSpecificationDataSheet
28VS50Y‐30
If this document is provided the U.S. Government, Champion Aerospace LLC, provides the document with “Limited Rights”. The
Government's rights to use, modify, reproduce, release, perform, display, or disclose these technical data are restricted by
paragraph (b)(3) of the Rights in Technical Data—Noncommercial Items clause contained within the purchase contract. Any
reproduction of technical data or portions thereof marked with this legend must also reproduce the m arkings. An y person, other than
the Government, who has been provided access to such data must promptly notify the above named Contractor.
Figure1:InstallationDrawing
Figure2:Schematic
NOTE: NOT DEPICT ED IN THE SCHEMATI C IS A
LONG LIFE, DYNAMICALLY BALANCED THREE
PHASE INVERTED INDUCTION MOTOR TYPE
OF COOLING FAN THAT IS CONNECTED TO
PHASES A, B & C.