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Circuit Breaker

NSN: 5925-01-166-2847 | Model: M55629/8-114

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 elemen (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.

NSN Properties and Flags
NATO Stock Number
5925-01-166-2847
DEMIL
NO
Body Style
Single pole type
Body Length
Between 1.969 inches and 2.031 inches
Body Width
Between 0.719 inches and 0.781 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
Between 1.529 inches and 1.591 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 1.629 inches and 1.691 inches
Switch Contact Arrangement
Single pole, double throw
Fragility Factor
Moderately rugged
End Application
6660-01-148-1772
Boss Height
Between 0.099 inches and 0.161 inches
Mounting Surface To Terminal End Distance
2.032 inches
Pole Quantity
1
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
2 threaded hole
Storage Type
General purpose warehouse
Special Handling Feature
Magnetic
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
30.0 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
2000.0 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
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
Auxiliary Switch Function And Quantity
1 alarm
Internal Trip Release Configuration
Series trip single location
Thread Size
0.138 inches
Switch Location And Position Designation
Internal at pole one
Trip Delay Time In Seconds Per Rated Continuous Current
0.130 at 200 pct single location and 1.400 at 200 pct single location
Inclosure Protection Type For Which Designed
Fungus resistant and moisture resistant
Switch Terminal Type
Tab, solder lug
Switch Current Rating And Type In Amps
5.0 ac and 3.0 dc
Switch Voltage Rating And Type In Volts
240.0 ac and 50.0 dc
Test Data Document
81349-mil-c-55629 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unc
Terminal Type And Quantity
2 tab w/screw
Specification Data
81349-mil-c-55629/8 government specification

Parts List for Meteorological Data  

Other components in the assembly of NSN 6660-01-148-1772

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NSN 5925-01-166-2847 Datasheet

Supply Class (FSC):
Circuit Breakers
Cross Reference:
  • M55629/8-114
  • MIL-C-55629/8
Cage Codes:
  • Military Specifications (CAGE 81349)
Schedule B & Trade:
  • Schedule B: 8536200040 (NAICS 335313)

    Automatic circuit breakers, for a voltage not exceeding 1, 000 v, nesoi

  • SITC: 77252

    Automatic circuit breakers for a voltage not exceeding 1, 000 volts

  • End Use: 20005

    Electric apparatus

Identification:
HMIC

P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    061300 - Circuit breaker/switch noi

  • WCC:

    658 - Electrical appliances, small

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    P - 77.5

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    Q2200x-
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $49.17 to $81.95..
Does NSN 5925-01-166-2847 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army
What is the NIIN of NSN 5925-01-166-2847?
011662847 or 01-166-2847
Does NSN 5925-01-166-2847 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5925-01-166-2847?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Nov 09, 1983