Model: 4490B

Power Transfer Switching Unit

Properties:

Overall Depth
19.250 inches
Overall Height
28.000 inches
Overall Width
25.500 inches
Frequency Rating
60.0 hertz
Switch Position Quantity
2
Mounting Configuration
Bracket mtg
Current Rating In Amps
1.5
Inclosure Feature
Weatherproof
Switch Operation Method
Magnetic
Switch Action Type
Magnetic contactor
Switch Pole Quantity
2
Switch Off Position
Included
Manual Operation Facility
Provided
Voltage In Volts
120.0
Phase
Single
NSN
6110-00-642-1120
Part Number
4490B
Description
Switching Unit,power Transfer
CAGE
02250

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 4490B NSN 6110-00-642-1120

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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