Product Details | CIRCUIT BREAKER

5925-01-439-5040 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: BACC18Z3R, BACC18Z-3R, 5925-01-439-5040, 01-439-5040, 5925014395040, 014395040

Electrical and Electronic Equipment Components | Circuit Breakers

Supply Group (FSG) NSN Assign. NIIN
59 10 DEC 1996 01-439-5040

Drawings & Photos | NSN 5925-01-439-5040


Demand History | NSN 5925-01-439-5040

Part Number Request Date QTY Origin
BACC18Z3R 2019-02-50 1 United States
5925-01-439-5040 2016-04-108 1 Australia
BACC18Z3R 2013-11-305 572 US
BACC18Z3R 2009-02-57 10 Indonesia

Cross Reference | NSN 5925-01-439-5040

Part Number Cage Code Manufacturer
BACC18Z-3R 81205 THE BOEING COMPANY DBA BOEING

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Technical Data | NSN 5925-01-439-5040

Characteristic Specifications
POLE QUANTITY 1
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE 3.0 AMPERES AC AND 3.0 AMPERES DC SINGLE LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS 120.0 AC AND 30.0 DC SINGLE LOCATION
FREQUENCY IN HERTZ 400.0 SINGLE LOCATION
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS 2500.0 AC AND 2500.0 DC SINGLE LOCATION
CIRCUIT PROTECTION TYPE OVERCURRENT SINGLE LOCATION
TRIP RELEASE METHOD THERMAL SINGLE LOCATION
INTERNAL TRIP RELEASE CONFIGURATION SERIES TRIP 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 5.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT 138.0 SINGLE LOCATION
RESET METHOD MANUAL
MAIN CONTACT TRIPPING MECHANISM TYPE TRIP FREE
BODY STYLE 1A SINGLE POLE TYPE
BUSHING LENGTH 0.250 INCHES NOMINAL
BODY LENGTH 0.750 INCHES NOMINAL
BODY WIDTH 0.562 INCHES NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS PARALLEL TO LENGTH 0.673 INCHES MINIMUM AND 0.805 INCHES MAXIMUM
MOUNTING SURFACE TO TERMINAL END DISTANCE 1.281 INCHES MINIMUM AND 1.378 INCHES MAXIMUM
CASE MATERIAL PLASTIC
MOUNTING FACILITY TYPE AND QUANTITY 1 THREADED BUSHING W/PANEL SEAL
THREAD SERIES DESIGNATOR UN
NOMINAL THREAD SIZE 0.438 INCHES
THREAD QUANTITY PER INCH 32
MANUAL ACTUATOR TYPE AND QUANTITY 1 PUSH-PULL
ACTUATOR FUNCTION TRIP-RESET
ACTUATOR POSITION DESIGNATION AT POLE ONE
TERMINAL TYPE AND QUANTITY 2 TAB W/SCREW
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED CORROSION RESISTANT AND VIBRATIONPROOF
III UNPACKAGED UNIT WEIGHT 27.0 GRAMS

Restrictions/Controls & Freight Information | NSN 5925-01-439-5040

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.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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
No Freight Information