Model: 666740-1

Power Transformer

Special Features:

One primary winding; five secondary windings

Properties:

Reliability Indicator
Not establishednot established
Overall Length
3.500 inches 3.500 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
2.200 inches single mounting facility single center group2.200 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
1.960 inches single mounting facility single center group1.960 inches single mounting facility single center group
Overall Height
2.300 inches 2.300 inches
Overall Width
3.000 inches 3.000 inches
Frequency Rating
400.0 hertz single component400.0 hertz single component
Input-output Phase Relationship
Three phase to three phase single component and three phase to three phase single component and three phase to two phase single componentthree phase to two phase single component
Transformer Winding Connection Type
Wye-delta and wye-delta and wye-open deltawye-open delta
Maximum Transformer Power Rating
330.1 volt-ampere single component330.1 volt-ampere single component
Winding Shielding Method
Internal shield grounded to core single componentinternal shield grounded to core single component
Maximum Operating Temp
130.0 degrees celsius130.0 degrees celsius
Inclosure Type
Fully enclosedfully enclosed
Mounting Facility Quantity
4 single group4 single group
Mounting Method
Threaded hole single groupthreaded hole single group
Cooling Method
Self-cooledself-cooled
Winding Function And Quantity
1 primary single component and 1 primary single component and 5 secondary single component5 secondary single component
Thread Size
0.138 inches single group0.138 inches single group
Winding Operating Current
2.0 amperes ac single component 2nd secondary
Winding Operating Current
2.0 amperes ac single component 3rd secondary
Winding Operating Current
3.0 amperes ac single component 1st secondary
Winding Operating Current
800.0 milliamperes ac single component 4th secondary
Winding Power Rating
134.9 volts-amperes single component 1st secondary
Winding Power Rating
134.9 volts-amperes single component 1st secondary90.0 volts-amperes single component 3rd secondary90.0 volts-amperes single component 2nd secondary
Winding Power Rating
90.0 volts-amperes single component 2nd secondary134.9 volts-amperes single component 1st secondary
Winding Power Rating
90.0 volts-amperes single component 2nd secondary10.0 volts-amperes single component 4th secondary90.0 volts-amperes single component 3rd secondary
Winding Operating Voltage
26.00 ac volts single component 1st secondary
Winding Operating Voltage
26.00 ac volts single component 1st secondary26.00 ac volts single component 3rd secondary26.00 ac volts single component 2nd secondary
Winding Operating Voltage
26.00 ac volts single component 2nd secondary26.00 ac volts single component 1st secondary
Winding Operating Voltage
26.00 ac volts single component 2nd secondary7.20 ac volts single component 4th secondary26.00 ac volts single component 3rd secondary
Winding Operating Voltage
26.00 ac volts single component 3rd secondary115.00 ac volts single component single primary7.20 ac volts single component 4th secondary
Thread Series Designator
Unc single group
Terminal Type And Quantity
18 tab, solder lug
NSN
5950-00-410-5141
Part Number
666740-1
Description
Transformer,power
CAGE
96214

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 666740-1 NSN 5950-00-410-5141

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.7000lbs
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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