Model: 977AA

Electrical Surge Arrester

Properties:

Body Material
Ceramic
Terminal Quantity
3
Terminal Type
Threaded stud
Overall Length
3.625 inches
Overall Height
2.312 inches
Overall Width
2.500 inches
Mounting Method
Holes
Mounting Configuration
Two 3/16 in. Diameter mtg holes spaced 2-1/2 in. C to c
Arrester Type
Air gap and carbon block
Breakdown Voltage
400.000 volts
Line To Ground Voltage
Between 350.000 volts and 550.000 volts
NSN
5920-00-812-7461
Part Number
977AA
Description
Arrester,electrical Surge
CAGE
77554

A circuit-protecting device which provides a discharge path for abnormal surges of high potential while consuming little or no power at normal operating voltage. Excludes items which absorb continuously recurring cyclic pulses. For resistors which are sensitive to voltage changes or used as elements in surge arresters, see resistor, voltage sensitive. See also absorber, overvoltage; and cutout disk, protective.

Part 977AA NSN 5920-00-812-7461

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00381
FIIG:
T214-C
Concept No.:
App. Key:
CC
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:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062920
UFC:
35120
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8535400000
  • SITC: 77245
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Lightning arrestors, voltage limiters and surge suppressors, for voltage exceeding 1000 v

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