Model: 17878.12-1

Power Transfer Switching Unit

Properties:

Overall Depth
13.625 inches
Overall Height
19.500 inches
Overall Width
12.063 inches
Frequency Rating
60.0 hertz
Switch Position Quantity
2
Mounting Configuration
Four 0.531 in. Diameter mtg holes, on 16.500 in. By 6.063 in. Mtg centers
Current Rating In Amps
50.0
Inclosure Feature
Dripproof
Switch Operation Method
Motor driven
Switch Action Type
Magnetic contactor
Switch Pole Quantity
3
Switch Off Position
Not included
Manual Operation Facility
Provided
Voltage In Volts
450.0
Phase
Three
Nondefinitive Specification/std Data
Abt-a2 type
NSN
6110-00-728-0680
Part Number
17878.12-1
Description
Switching Unit,power Transfer
CAGE
63743

An item that is electrically operated to transfer automatically the load from one power source to an alternate power source. May have provisions for emergency manual operation. For manually operated power transfer units, see switch, box.

Part 17878.12-1 NSN 6110-00-728-0680

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16235
FIIG:
T142-Q
Concept No.:
App. Key:
QB
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
26.5 X 18.0 X 18.0
Paclk Weight:
113.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
99
LVL_A:
Q
LVL_B:
F

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063420
UFC:
35355
LTL:
RATING VARIABLE
LCL:
77.5
WCC:
595
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8543909000
  • SITC: 77879
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical machines and apparatus parts, nesoi

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