Product Details | CIRCUIT BREAKER

5925-00-187-8860 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: 999093, 5925-00-187-8860, 00-187-8860, 5925001878860, 001878860

Electrical and Electronic Equipment Components | Circuit Breakers

Supply Group (FSG) NSN Assign. NIIN
59 01 JAN 1963 00-187-8860

Cross Reference | NSN 5925-00-187-8860

Part Number Cage Code Manufacturer
999093 79500 WESTINGHOUSE ELECTRIC CORP
999093 90099 NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN MARINE SYSTEMS

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Technical Data | NSN 5925-00-187-8860

Characteristic Specifications
POLE QUANTITY 1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 20.0 AMPERES AC AND 20.0 AMPERES DC SINGLE LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 125.0 AC AND 125.0 DC SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 5000.0 AC AND 5000.0 DC SINGLE LOCATION
CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
TRIP RELEASE METHOD THERMAL SINGLE LOCATION
TRIP RELEASE AMBIENT TEMP RATING 25.0 DEG CELSIUS NOMINAL SINGLE LOCATION
TRIP RELEASE CHARACTERISTIC TIME DELAY SINGLE LOCATION
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT 170.000 MINIMUM AT 125 PCT AND 3600.000 MAXIMUM AT 125 PCT AND 17.000 MINIMUM AT 200 PCT AND 58.000 MAXIMUM AT 200 PCT AND 7.000 MINIMUM AT 300 PCT AND 18.000 MAXIMUM AT 300 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 122.0 SINGLE LOCATION
RESET METHOD MANUAL
MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
OVERALL LENGTH 6.000 INCHES NOMINAL
OVERALL HEIGHT 3.969 INCHES NOMINAL
OVERALL WIDTH 1.375 INCHES NOMINAL
CASE MATERIAL PLASTIC
MOUNTING FACILITY TYPE AND QUANTITY 2 UNTHREADED HOLE
UNTHREADED MOUNTING HOLE DIAMETER 0.188 INCHES NOMINAL
MANUAL ACTUATOR TYPE AND QUANTITY 1 TOGGLE
ACTUATOR FUNCTION TRIP W/SEPARATE RESET
TERMINAL TYPE AND QUANTITY 1 SCREW
SPECIAL FEATURES MTG HOLES DIAGONALLY SPACED ON 0.812 BY 4.844 IN. MTG CENTERS
III ARC QUENCHING METHOD DEION

Restrictions/Controls & Freight Information | NSN 5925-00-187-8860

Category Code Description
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.
Precious Metals Indicator Code:UPrecious metal type is unknown
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
No Freight Information