Product Details | CIRCUIT BREAKER

5925-00-938-7253 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: M39019139, M39019-1-39, MILC390191, MILC39019-1, 5925-00-938-7253, 00-938-7253, 5925009387253, 009387253

Electrical and Electronic Equipment Components | Circuit Breakers

Supply Group (FSG) NSN Assign. NIIN
59 23 MAR 1967 00-938-7253

Drawings & Photos | NSN 5925-00-938-7253


Demand History | NSN 5925-00-938-7253

Part Number Request Date QTY Origin
MILC390191 2008-11-310 750 US

Cross Reference | NSN 5925-00-938-7253

Part Number Cage Code Manufacturer
M39019-1-39 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MILC39019-1 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5925-00-938-7253

Characteristic Specifications
POLE QUANTITY 1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 3.0 AMPERES AC SINGLE LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 240.0 AC SINGLE LOCATION
FREQUENCY IN HERTZ 240.0 SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 300.0 AC SINGLE LOCATION
CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
TRIP RELEASE METHOD MAGNETIC SINGLE LOCATION
INTERNAL TRIP RELEASE CONFIGURATION SERIES TRIP SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC TIME DELAY SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT 0.055 MINIMUM AT 200 PCT AND 0.950 MAXIMUM AT 200 PCT AND 0.240 MAXIMUM AT 400 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 125.0 SINGLE LOCATION
ULTIMATE TRIP TIME PER POLE IN SECONDS 0.200 MINIMUM AND 7.000 MAXIMUM SINGLE LOCATION
RESET METHOD MANUAL
MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
BODY STYLE 2A SINGLE POLE TYPE
BUSHING LENGTH 0.380 INCHES MAXIMUM
BODY LENGTH 1.562 INCHES MAXIMUM
BODY WIDTH 0.625 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 0.906 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE 1.700 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
MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
ACTUATOR FUNCTION TRIP-RESET
ACTUATOR POSITION DESIGNATION AT POLE ONE
TERMINAL TYPE AND QUANTITY 2 WIRE HOOK
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED FUNGUS RESISTANT AND HERMETICALLY SEALED
TEST DATA DOCUMENT 81349-MIL-C-39019 SPECIFICATION
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILC39019-1
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE M39019-1-39

Restrictions/Controls & Freight Information | NSN 5925-00-938-7253

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 TX Defense Supply Center Columbus
Columbus, OH 43218
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 5925-00-938-7253

Category Code Description
Cognizance Codes9NNavy-owned stocks of defense electronic material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9EDefense Supply Center Columbus
Columbus, OH 43218
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each