Product Details | CIRCUIT BREAKER

5925-01-018-0857 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: HS058S7407, PSM-3-0.5-DC, PSM305DC, 5925-01-018-0857, 01-018-0857, 5925010180857, 010180857

Electrical and Electronic Equipment Components | Circuit Breakers

Supply Group (FSG) NSN Assign. NIIN
59 20 MAR 1976 01-018-0857

Drawings & Photos | NSN 5925-01-018-0857


Cross Reference | NSN 5925-01-018-0857

Part Number Cage Code Manufacturer
HS058S7407 57230 GOULD INC SIMULATION SYSTEMS DIV
PSM-3-0.5-DC 74193 EATON CORP HEINEMANN PRODUCTS

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Technical Data | NSN 5925-01-018-0857

Characteristic Specifications
POLE QUANTITY 1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 500.0 MILLIAMPERES 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 500.0 DC SINGLE LOCATION
CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
TRIP RELEASE METHOD MAGNETIC-HYDRAULIC SINGLE LOCATION
INTERNAL TRIP RELEASE CONFIGURATION SERIES TRIP SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC INSTANTANEOUS 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
BODY STYLE 2A SINGLE POLE TYPE
BUSHING LENGTH 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
BODY LENGTH 1.448 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
BODY WIDTH 0.567 INCHES MINIMUM AND 0.629 INCHES MAXIMUM
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE 1.524 INCHES MINIMUM AND 1.586 INCHES MAXIMUM
CASE MATERIAL PLASTIC
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 DUSTPROOF
III ARC QUENCHING METHOD MAGNETIC BLOWOUT
III STORAGE TYPE GENERAL PURPOSE WAREHOUSE
III FRAGILITY FACTOR MODERATELY RUGGED

Restrictions/Controls & Freight Information | NSN 5925-01-018-0857

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 5925-01-018-0857

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each