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Circuit Breaker

NSN: 5925-00-615-1450 | Model: SM-B-185207-1
ITAR Registered seal

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 elem en (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
Yes - ITAR Controlled
Body Style
Single pole type
Body Length
Between 5.240 inches and 5.260 inches
Body Width
Between 1.490 inches and 1.510 inches
Body Height
Between 2.678 inches and 2.698 inches
Case Material
Center To Center Distance Between Terminals Parallel To Length
Between 4.349 inches and 4.369 inches
Unthreaded Mounting Hole Diameter
0.190 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 4.349 inches and 4.369 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 0.974 inches and 0.994 inches
Fragility Factor
Moderately rugged
Boss Height
Between 0.208 inches and 0.228 inches
Pole Quantity
Arc Quenching Method
Magnetic blowout
Mounting Facility Type And Quantity
4 threaded hole and 4 unthreaded hole
Storage Type
General purpose warehouse
Thready Qty Per Inch (tpi)
Maximum Continuous Load Current Rating Per Pole
20.0 amperes ac single location
Operating Voltage Type And Rating Per Pole In Volts
125.0 ac single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
5000.0 ac single location
Circuit Protection Type
Overcurrent single location
Trip Release Method
Magnetic-hydraulic 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
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 toggle
Actuator Function
Actuator Position Designation
At pole one
Internal Trip Release Configuration
Series trip single location
Thread Size
0.164 inches
Trip Delay Time In Seconds Per Rated Continuous Current
0.350 at 200 pct single location and 1.000 at 200 pct single location
Inclosure Protection Type For Which Designed
Dust proof and fungus proof
Frequency In Hertz
60.0 single location
Thread Series Designator
Terminal Type And Quantity
2 compression

Pricing and Availability

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NSN 5925-00-615-1450 Datasheet

Supply Class (FSC):
Circuit Breakers
Cross Reference:
  • SM-B-185207-1
  • 1163SMG6-20-125-60-3
  • 1163SM6-20CURVE3
Cage Codes:
  • Us Army Communications & (CAGE 80063)
  • Eaton Corp (CAGE 74193)
Schedule B & Trade:
  • Schedule B: 8536200040 (NAICS 335313)

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

  • SITC: 77252

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

  • End Use: 20005

    Electric apparatus


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.


U - Precious metal content is unknown


- 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:

    723 - Radio parts and equipment, excluding tubes packed separately

  • 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

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5925-00-615-1450 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Austria, Canada, and Greece
What is the NIIN of NSN 5925-00-615-1450?
006151450 or 00-615-1450
Does NSN 5925-00-615-1450 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5925-00-615-1450?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963