Product Details | CIRCUIT BREAKER

5925-00-512-9020 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.

Part Alternates: AP112191820, AP112-1918-20, 2131850-20, 5925-00-512-9020, 00-512-9020, 5925005129020, 213185020, 005129020

Electrical and Electronic Equipment Components | Circuit Breakers

Supply Group (FSG) NSN Assign. NIIN
59 03 AUG 1974 00-512-9020

Drawings & Photos | NSN 5925-00-512-9020


Cross Reference | NSN 5925-00-512-9020

Part Number Cage Code Manufacturer
2131850-20 19315 HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND
2131850-20 55974 HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
AP112-1918-20 81541 SENSATA TECHNOLOGIES MARYLAND, INC

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Technical Data | NSN 5925-00-512-9020

Characteristic Specifications
POLE QUANTITY 3
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 1.0 AMPERES AC FIRST LOCATION 10.0 AMPERES DC SECOND LOCATION 10.0 AMPERES DC THIRD LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 115.0 AC FIRST LOCATION 50.0 DC SECOND LOCATION 50.0 DC THIRD LOCATION
FREQUENCY IN HERTZ 400.0 FIRST LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 300.0 AC FIRST LOCATION 500.0 DC SECOND LOCATION 500.0 DC THIRD LOCATION
CIRCUIT PROTECTION TYPE OVERCURRENT ALL LOCATIONS
TRIP RELEASE METHOD MAGNETIC ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATION SERIES TRIP ALL LOCATIONS
TRIP RELEASE CHARACTERISTIC TIME DELAY ALL LOCATIONS
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT 0.070 MINIMUM AT 200 PCT AND 0.700 MAXIMUM AT 200 PCT 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
BODY STYLE 1B MULTIPOLE-SINGLE ACTUATOR TYPE
BUSHING LENGTH 0.380 INCHES MAXIMUM
BODY LENGTH 1.500 INCHES MAXIMUM
BODY WIDTH 1.875 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 0.875 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO WIDTH 0.625 INCHES NOMINAL
MOUNTING SURFACE TO TERMINAL END DISTANCE 1.780 INCHES MAXIMUM
CASE MATERIAL METAL
MOUNTING FACILITY TYPE AND QUANTITY 1 THREADED BUSHING W/PANEL SEAL
THREAD SERIES DESIGNATOR UNEF
NOMINAL THREAD SIZE 0.375 INCHES
THREAD QUANTITY PER INCH 32
THREAD PITCH DIAMETERS 0.3503 TO 0.3537 INCHES
MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
ACTUATOR FUNCTION TRIP-RESET
ACTUATOR POSITION DESIGNATION BETWEEN POLE ONE AND TWO
TERMINAL TYPE AND QUANTITY 6 WIRE HOOK
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED HERMETICALLY SEALED AND SHOCKPROOF AND VIBRATIONPROOF
III ARC QUENCHING METHOD MAGNETIC BLOWOUT
III NONTURN DEVICE LOCATION AT 3 OCLOCK AND AT 9 OCLOCK
III NONTURN DEVICE RADIUS 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
III NONTURN DEVICE LENGTH 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
III NONTURN DEVICE DIAMETER 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5925-00-512-9020

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 061300 CIRCUIT BREAKER/SWITCH NOI
Less than car load rating
Less than truck load rating P 77.5
Water commodity Code 658 unknown
Originating Activity Code TA Sacramento Air Logistics Center
McClellan AFB, CA 95652-5609
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity H Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5925-00-512-9020

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Materiel Management Aggregation CodeEHSX:ELECTRONIC COMPONENTS
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each