Model: 28857

Power Transformer

Special Features:

2 primary windings 5 secondary windings

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
2.000 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
1.750 inches single mounting facility single center group
Frequency Rating
125.0 kilohertz single component
Input-output Phase Relationship
Single phase to single phase single component
Winding Shielding Method
Core grounded single component
Body Length
2.560 inches
Body Width
2.310 inches
Body Height
1.370 inches
Inclosure Type
Fully enclosed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded hole single group
Winding Function And Quantity
2 primary single component and 5 secondary single component
Thread Size
0.120 inches single group
Winding Operating Current
1.8 amperes dc single component 4th secondary
Winding Operating Current
1.9 amperes ac single component all primary
Winding Operating Current
4.0 amperes dc single component 2nd secondary
Winding Operating Current
3.5 amperes dc single component 3rd secondary
Winding Operating Current
60.0 amperes dc single component 1st secondary
Winding Operating Voltage
13.50 ac volts single component 2nd secondary
Winding Operating Voltage
135.00 ac volts single component all primary
Winding Operating Voltage
27.00 ac volts single component 3rd secondary
Winding Operating Voltage
27.00 ac volts single component 4th secondary
Winding Operating Voltage
9.00 ac volts single component 1st secondary
Thread Series Designator
Unc single group
Terminal Type And Quantity
17 turret
NSN
5950-01-249-8218
Part Number
28857
Description
Transformer,power
CAGE
07388

Part 28857 NSN 5950-01-249-8218

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
32496
FIIG:
A058B0
Concept No.:
1
App. Key:
J
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063420
UFC:
35355
LTL:
RATING VARIABLE
LCL:
--
WCC:
595
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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