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Circuit Breaker

NSN: 5925-01-122-5020 | Model: AP12-1R4-1-502

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
5925-01-122-5020
DEMIL
NO
Body Style
Multipole-single actuator type
Bushing Length
Between 0.332 inches and 0.380 inches
Body Length
Between 1.531 inches and 1.562 inches
Body Width
Between 1.250 inches and 1.281 inches
Case Material
Metal
Center To Center Distance Between Terminals Parallel To Length
Between 0.875 inches and 0.906 inches
Center To Center Distance Between Terminals Parallel To Width
Between 0.594 inches and 0.653 inches
Switch Contact Arrangement
Single pole, double throw
Mounting Surface To Terminal End Distance
Between 1.797 inches and 1.828 inches
Pole Quantity
2
Mounting Facility Type And Quantity
Thd 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 ac all locations and 5.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
240.0 ac all locations and 50.0 dc all locations
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
300.0 ac all locations and 500.0 dc all locations
Circuit Protection Type
Overcurrent all locations
Trip Release Method
Magnetic all locations
Trip Release Characteristic
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
115.0 all locations
Reset Method
Manual
Main Contact Tripping Mechanism Type
Trip free
Manual Actuator Type And Quantity
1 toggle
Actuator Function
Trip-reset
Actuator Position Designation
Between pole one and two
Auxiliary Switch Function And Quantity
1 alarm
Internal Trip Release Configuration
Series trip all locations
Thread Size
0.375 inches
Switch Location And Position Designation
Internal at pole two
Trip Delay Time In Seconds Per Rated Continuous Current
0.055 at 200 pct all locations and 0.950 at 200 pct all locations
Inclosure Protection Type For Which Designed
Fungus resistant and hermetically sealed
Switch Terminal Type
Tab, solder lug
Switch Current Rating And Type In Amps
0.5 ac and 0.5 dc
Switch Voltage Rating And Type In Volts
120.0 ac and 50.0 dc
Frequency In Hertz
400.0 all locations
Unpackaged Unit Weight
100.0 grams
Test Data Document
81349-mil-prf-39019 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
Unef
Terminal Type And Quantity
4 wire hook
Specification Data
81349-mil-prf-39019/4 government specification
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE7M518T835K 2018-08-13 PMCMD 4 EA

Pricing and Availability

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NSN 5925-01-122-5020 Datasheet

Supply Class (FSC):
Circuit Breakers
Cross Reference:
  • AP12-1R4-1-502
  • HB2Z2-49
  • M39019/04-230
  • MIL-PRF-39019/4
  • 907611
  • MIL-C-39019/4
  • M39019/4-49
Cage Codes:
  • Sensata Technologies Maryland, Inc (CAGE 81541)
  • Eaton Corp (CAGE 74193)
  • Military Specifications (CAGE 81349)
  • 3 Communications Corporation L (CAGE 34228)
Replacements:
  • 5925-01-122-5020 replaces 5925-00-495-7388
  • 5925-01-122-5020 replaces 5925-01-517-5015
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.

ADPE

- Represents items with no adp components

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
    Z
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    Sf9eh-v
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $799.43 to $1,332.38..
Does NSN 5925-01-122-5020 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 Air Force, Department Of The Navy, Spain, Australia, Canada, New Zealand, and Italy
What is the NIIN of NSN 5925-01-122-5020?
011225020 or 01-122-5020
Does NSN 5925-01-122-5020 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5925-01-122-5020?
Solicitation SPE7M518T835K for qty 4 on 08/03/2018
When was this national stock number assigned to the federal catalog?
Nov 22, 1981