PartsTable
Technical Data Sheet
666144-187 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include material: PLASTIC CASE, body_style: SINGLE POLE TYPE, body_width: 0.730 INCHES NOMINAL IN, body_height: 2.310 INCHES NOMINAL IN, body_length: 3.000 INCHES NOMINAL IN, boss_height: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-00-818-4811, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 666144-187
NSN: 5925-00-818-4811
FSC: 5925
CAGE: 12436 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DIV BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleSINGLE POLE TYPE
body_width0.730 INCHES NOMINAL IN
body_height2.310 INCHES NOMINAL IN
body_length3.000 INCHES NOMINAL IN
boss_height0.250 INCHES NOMINAL IN
reset_methodMANUAL
pole_quantity1
actuator_functionTRIP W/SEPARATE RESET
frequency_in_hertz60.0 SINGLE LOCATION
trip_release_methodTHERMAL-MAGNETIC SINGLE LOCATION
circuit_protection_typeOVERCURRENT SINGLE LOCATION
NSN5925-00-818-4811
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN 666144-187 MFR CIRCUIT BREAKER
KEY FEATURES
BODY HEIGHT: 2.310 INCHES NOMINAL IN
MAIN CONTACT TRIPPING MECHANISM TYPE: TRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS: 240.0 AC SINGLE LOCATION
FREQUENCY IN HERTZ: 60.0 SINGLE LOCATION
RESET METHOD: MANUAL
TERMINAL TYPE AND QUANTITY: 1 PIN AND 1 TAB, SOLDER LUG
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT: 125.0 SINGLE LOCATION
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE: 15.0 AMPERES AC SINGLE LOCATION
TECHNICAL CHARACTERISTICS (FLIS)
BODY HEIGHT2.310 INCHES NOMINAL IN
MAIN CONTACT TRIPPING MECHANISM TYPETRIP FREE
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS240.0 AC SINGLE LOCATION
FREQUENCY IN HERTZ60.0 SINGLE LOCATION
RESET METHODMANUAL
TERMINAL TYPE AND QUANTITY1 PIN AND 1 TAB, SOLDER LUG
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT125.0 SINGLE LOCATION
MAXIMUM CONTINUOUS LOAD CURRENT RATING PER POLE15.0 AMPERES AC SINGLE LOCATION
MATERIALPLASTIC CASE
ACTUATOR POSITION DESIGNATIONAT POLE ONE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
214-0006-001Interchangeable
interchangeable cross-reference
interchangeable
014183-0000Interchangeable
interchangeable cross-reference
interchangeable
WC375/01-002Interchangeable
interchangeable cross-reference
interchangeable
1SB1066Interchangeable
Same NIIN cross-reference
interchangeable
1021219-3Interchangeable
Same NIIN cross-reference
interchangeable
QO115Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 666144-187?
666144-187 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 666144-187?
There are 7 known substitutes for 666144-187: 214-0006-001, 014183-0000, WC375/01-002 and 4 more. Substitute compatibility should be verified for your specific system.
Is 666144-187 still available?
666144-187 is currently cancelled.
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