Model: 12846

Power Transformer

Properties:

Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
4.200 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
1.900 inches single mounting facility single center group
Frequency Rating
480.0 hertz single component
Input-output Phase Relationship
Three phase to three phase single component and three phase to six phase single component
Transformer Winding Connection Type
Delta-wye
Maximum Transformer Power Rating
352.3 volt-ampere single component
Winding Shielding Method
Internal shield grounded to inclosure and brought out to terminal single component
Body Length
4.800 inches
Body Width
2.500 inches
Body Height
3.440 inches
Maximum Operating Temp
125.0 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 3 secondary single component
Thread Size
0.190 inches single group
Winding Operating Current
2.0 amperes ac single component 1st secondary
Winding Operating Current
300.0 milliamperes ac single component 2nd secondary
Winding Operating Current
6.0 amperes ac single component 3rd secondary
Winding Power Rating
253.3 volts-amperes single component 3rd secondary
Winding Power Rating
9.0 volts-amperes single component 2nd secondary
Winding Power Rating
90.0 volts-amperes single component 1st secondary
Winding Operating Voltage
17.30 ac volts single component 2nd secondary
Winding Operating Voltage
198.50 ac volts single component single primary
Winding Operating Voltage
24.40 ac volts single component 3rd secondary
Winding Operating Voltage
26.00 ac volts single component 1st secondary
Thread Series Designator
Unf single group
Terminal Type And Quantity
18 turret
NSN
5950-01-057-5040
Part Number
12846
Description
Transformer,power
CAGE
53854

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 12846 NSN 5950-01-057-5040

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:
8.0000lbs
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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