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NSN 5925-00-180-3246

Overload Switch

About this product

Single pole type body style, metal case material, moderately rugged fragility factor, pole quantity: 1.

Manufacturer part number 990C963H02 for national stock number 5925001803246.

Datasheet

  • Product description

    Circuit Breaker NSN 5925-00-180-3246.

  • MPN or Model

    990C963H02

  • Schedule B
    8536.20.0040 (Automatic circuit breakers, for a voltage not exceeding 1, 000 v, nesoi)
  • Body Style
    Single pole type
  • Bushing Length
    Between 0.360 inches and 0.380 inches
  • Body Length
    Between 1.448 inches and 1.510 inches
  • Body Width
    Between 0.567 inches and 0.629 inches
  • Case Material
    Metal
  • Center To Center Distance Between Terminals Parallel To Length
    Between 0.870 inches and 0.880 inches
  • Fragility Factor
    Moderately rugged
  • Mounting Surface To Terminal End Distance
    Between 1.524 inches and 1.586 inches
  • Pole Quantity
    1
  • Arc Quenching Method
    Magnetic blowout
  • Mounting Facility Type And Quantity
    1 threaded bushing w/panel seal
  • Storage Type
    General purpose warehouse
  • Thready Qty Per Inch (tpi)
    32
  • Maximum Continuous Load Current Rating Per Pole
    5.0 amperes dc single location
  • Operating Voltage Type And Rating Per Pole In Volts
    50.0 dc single location
  • Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
    500.0 dc single location
  • Circuit Protection Type
    Overcurrent single location
  • Trip Release Method
    Magnetic single location
  • Trip Release Characteristic
    Time delay single location
  • Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
    125.0 single location
  • Ultimate Trip Time Per Pole In Seconds
    40.000 single location
  • Reset Method
    Manual
  • Main Contact Tripping Mechanism Type
    Trip free
  • Manual Actuator Type And Quantity
    1 toggle
  • Actuator Function
    Trip-reset
  • Actuator Position Designation
    At pole one
  • Internal Trip Release Configuration
    Series trip single location
  • Thread Size
    0.375 inches
  • Trip Delay Time In Seconds Per Rated Continuous Current
    1.000 at 200 pct single location and 4.500 at 200 pct single location
  • Inclosure Protection Type For Which Designed
    Hermetically sealed
  • Thread Series Designator
    Unef
  • Terminal Type And Quantity
    2 wire hook
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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 5925001803246

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
990C963H02 Northrop Grumman Systems Corporation
SM3-5DC1 Eaton Corp
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