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NSN 5925-01-248-5793

Overload Switch

About this product

Function: circuit breaker, magnetic, 40 amp; reference data: cb-4401, instruction book arsr-1d/e/f, vol 5, sec 10, pg 10-759; cb-4401, instruction book arsr-2, vol 5, sec 10, pg 10-563.

Manufacturer part number AM3-A39-A-40-252 for national stock number 5925012485793.

Datasheet

  • Product description

    Circuit Breaker NSN 5925-01-248-5793.

  • MPN or Model

    AM3-A39-A-40-252

  • Schedule B
    8536.20.0040 (Automatic circuit breakers, for a voltage not exceeding 1, 000 v, nesoi)
  • Body Style
    Multipole-multiple actuator type
  • Body Length
    Between 2.490 inches and 2.510 inches
  • Body Width
    Between 2.240 inches and 2.510 inches
  • Case Material
    Plastic
  • Center To Center Distance Between Terminals Parallel To Length
    Between 1.928 inches and 1.948 inches
  • Center To Center Distance Between Terminals Parallel To Width
    Between 0.740 inches and 0.760 inches
  • Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
    Between 2.052 inches and 2.072 inches
  • Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
    Between 0.740 inches and 0.760 inches
  • Fragility Factor
    Moderately rugged
  • End Application
    Air route surveillance radar 1, fa7171 amplitron power supply cabinet; arsr-2, fa7121 amplitron power supply cabinet
  • Boss Height
    Between 0.130 inches and 0.150 inches
  • Mounting Surface To Terminal End Distance
    Between 2.461 inches and 2.481 inches
  • Pole Quantity
    3
  • Arc Quenching Method
    Magnetic blowout
  • Mounting Facility Type And Quantity
    6 threaded stud
  • Storage Type
    General purpose warehouse
  • Maximum Continuous Load Current Rating Per Pole
    40.0 amperes ac all locations
  • Operating Voltage Type And Rating Per Pole In Volts
    250.0 ac all locations
  • Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
    5000.0 ac all locations
  • Circuit Protection Type
    Overcurrent all locations
  • Trip Release Method
    Thermal-magnetic all locations
  • Trip Release Characteristic
    Instantaneous all locations
  • Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
    130.0 all locations
  • Ultimate Trip Time Per Pole In Seconds
    10.000 all locations
  • Reset Method
    Manual
  • Main Contact Tripping Mechanism Type
    Trip free
  • Manual Actuator Type And Quantity
    3 toggle
  • Actuator Function
    Trip-reset
  • Actuator Position Designation
    At each pole
  • External Actuator Linkage Arrangement
    One, two, and three linked
  • Thread Size
    0.138 inches
  • Inclosure Protection Type For Which Designed
    Dustproof
  • Trip Release Ambient Tempurature Rating
    77.0 degrees fahrenheit all locations
  • Frequency In Hertz
    60.0 all locations
  • Thread Series Designator
    Unc
  • Terminal Type And Quantity
    9 tab, solder lug or 6 threaded stud
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Circuit Breaker

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller.

Mechanic Bill explains Overload Switch

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NSN 5925012485793

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
AM3-A39-A-40-252 U S Dept Of Transportation Federal
AM3R-A39-LC07D-A52 Wesco Distribution, Inc.
AM3-A39-A-40-252 Eaton Corp
Stock Check
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