Model: S21B

Power Transformer

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
3.281 inches single mounting facility single center group and 3.344 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
2.656 inches single mounting facility single center group and 2.719 inches single mounting facility single center group
Overall Height
4.880 inches
Frequency Rating
400.0 hertz single component
Input-output Phase Relationship
Three phase to single phase single component
Winding Shielding Method
Internal shield grounded to core and brought out to terminal single component
Body Length
4.312 inches
Body Width
3.688 inches
Body Height
4.500 inches
Inclosure Type
Hermetically sealed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded stud single group
Winding Function And Quantity
1 primary single component and 3 secondary single component
Thready Qty Per Inch (tpi)
32 single group
Thread Size
0.190 inches single group
Winding Operating Current
30.0 amperes dc single component 1st secondary
Winding Operating Current
750.0 milliamperes dc single component 2nd secondary
Winding Operating Current
750.0 milliamperes dc single component 3rd secondary
Winding Operating Voltage
17.90 ac volts single component 2nd secondary180.00 ac volts single component single primary17.90 ac volts single component 3rd secondary
Winding Operating Voltage
17.90 ac volts single component 2nd secondary32.20 ac volts single component 1st secondary
Winding Operating Voltage
32.20 ac volts single component 1st secondary
Winding Operating Voltage
32.20 ac volts single component 1st secondary17.90 ac volts single component 3rd secondary17.90 ac volts single component 2nd secondary
Thread Series Designator
Unf single group
Terminal Type And Quantity
14 turret
NSN
5950-00-419-9492
Part Number
S21B
Description
Transformer,power
CAGE
26522

Part S21B NSN 5950-00-419-9492

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:
U
ESD:
ESD:
MMAC:
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:
O
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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