Model: TW71492

Power Transformer

Special Features:

One primary winding; nine secondary windings, with eighth secondary neutral tapped; one thermal switch brought out to two terminals

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
2.745 inches single mounting facility single center group and 2.755 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
2.745 inches single mounting facility single center group and 2.755 inches single mounting facility single center group
Frequency Rating
400.0 hertz single component
Input-output Phase Relationship
Three phase to three phase single component
Transformer Winding Connection Type
Wye-delta or wye-wye
Maximum Transformer Power Rating
782.0 volt-ampere single component
Winding Shielding Method
Internal shield brought out to terminal single component
Body Length
3.780 inches
Body Width
3.500 inches
Body Height
2.310 inches
Inclosure Type
Hermetically sealed
Mounting Facility Quantity
4 single group
Mounting Method
Threaded hole single group
Winding Function And Quantity
1 primary single component and 9 secondary single component
Thread Size
0.164 inches single group
Winding Operating Current
4.51 amperes ac single component 3rd secondary
Winding Operating Current
3.51 amperes ac single component 2nd secondary
Winding Operating Current
3.76 amperes ac single component 1st secondary
Winding Operating Current
90.0 milliamperes ac single component 4th secondary
Winding Power Rating
164.6 volts-amperes single component 3rd secondary
Winding Power Rating
2.9 volts-amperes single component 4th secondary
Winding Power Rating
66.5 volts-amperes single component 2nd secondary
Winding Power Rating
71.3 volts-amperes single component 1st secondary
Winding Operating Voltage
115.00 ac volts single component single primary
Winding Operating Voltage
18.95 ac volts single component 1st secondary
Winding Operating Voltage
18.95 ac volts single component 2nd secondary
Winding Operating Voltage
33.10 ac volts single component 4th secondary
Winding Operating Voltage
36.50 ac volts single component 3rd secondary
Thread Series Designator
Unc single group
Terminal Type And Quantity
35 turret
Specification Data
95542-151-405 manufacturers source control
NSN
5950-01-171-8795
Part Number
TW71492
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 TW71492 NSN 5950-01-171-8795

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:
--
Paclk Weight:
4.2000lbs
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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