Model: TW-71381

Power Transformer

Special Features:

One primary and five secondaries

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
3.125 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
2.250 inches single mounting facility single center group
Overall Height
2.409 inches
Frequency Rating
400.0 hertz single component
Input-output Phase Relationship
Three phase to three phase single component
Transformer Winding Connection Type
Delta-delta
Maximum Transformer Power Rating
221.4 volt-ampere single component
Winding Shielding Method
Internal shield brought out to terminal single component
Body Length
3.780 inches
Body Width
2.900 inches
Maximum Operating Temp
155.0 degrees celsius
Inclosure Type
Fully enclosed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded hole single group
Winding Function And Quantity
1 primary single component and 5 secondary single component
Thread Size
0.190 inches single group
Winding Operating Current
1.55 amperes dc single component 4th secondary
Winding Operating Current
4.7 amperes dc single component 1st secondary
Winding Operating Current
650.0 milliamperes dc single component 2nd secondary
Winding Operating Current
650.0 milliamperes dc single component 3rd secondary
Winding Power Rating
138.2 volts-amperes single component 1st secondary
Winding Power Rating
18.3 volts-amperes single component 2nd secondary
Winding Power Rating
18.3 volts-amperes single component 3rd secondary
Winding Power Rating
36.2 volts-amperes single component 4th secondary
Winding Operating Voltage
13.50 ac volts single component 4th secondary
Winding Operating Voltage
200.00 ac volts single component single primary
Winding Operating Voltage
16.30 ac volts single component 2nd secondary
Winding Operating Voltage
16.30 ac volts single component 3rd secondary
Winding Operating Voltage
17.00 ac volts single component 1st secondary
Thread Series Designator
Unf single group
Terminal Type And Quantity
19 turret
NSN
5950-01-174-7691
Part Number
TW-71381
Description
Transformer,power
CAGE
02640

A transformer consisting of one or more primary winding(s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an overall one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see transformer (1), power, autotransformer. Excludes transformer (1), pulse.

Part TW-71381 NSN 5950-01-174-7691

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
3.8 X 2.9 X 2.4
Paclk Weight:
3.0000lbs
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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Schedule B and Export
  • Schedule B: 8504314065
  • SITC: 77119
  • End Use: Generators, accessories
  • NAICS: 334416
  • USDA: 1

Freight Class: Transformers, having a power handling capacity 40 va or greater but less than 1 kva, nesoi

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