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Electrical Surge Arrester

Model / MPN: 977AA | NSN: 5920-00-812-7461
ITAR Registered seal

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.

Product Details
NATO Stock Number
5920-00-812-7461
Sold in multiples of
DEMIL
NO
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
977AA Series Parts

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977AA Cross Reference
  • D67553A
  • M74679481