PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ETN2742Circuit Breaker

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5925-00-489-7815 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-489-7815 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-489-7815. Primary manufacturer part number: ETN2742.
Features
  • Circuit Breaker — FSC 5925
  • Precious Material and Location: CONTACTS SILVER
  • Terminal Type and Quantity: 6 CLIP
  • Manual Actuator Type and Quantity: 1 TOGGLE
  • Circuit Protection Type: OVERCURRENT ALL LOCATIONS
  • Material: PLASTIC CASE
  • Trip Release Characteristic: INSTANTANEOUS AND TIME DELAY ALL LOCATIONS
  • Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps: 100000.0 AC ALL LOCATIONS
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-489-7815, is classified within Federal Supply Class 5925 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-489-7815
Primary Part NumberETN2742
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusACTIVE
Precious Material and LocationCONTACTS SILVER
Terminal Type and Quantity6 CLIP
Manual Actuator Type and Quantity1 TOGGLE
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
MaterialPLASTIC CASE
Trip Release CharacteristicINSTANTANEOUS AND TIME DELAY ALL LOCATIONS
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps100000.0 AC ALL LOCATIONS
Maximum Continuous Load Current Rating Per Pole50.0 AMPERES AC ALL LOCATIONS
Inclosure Protection Type for Which DesignedSHOCK RESISTANT AND VIBRATION RESISTANT
Operating Voltage Type and Rating Per Pole in Volts500.0 AC ALL LOCATIONS
Precious MaterialSILVER
Trip Delay Time in Seconds Per Rated Continuous Current3600.000 NOMINAL AT 150 PCT ALL LOCATIONS
Unthreaded Mounting Hole Diameter0.196 INCHES NOMINAL IN
Features ProvidedCURRENT LIMITER ACCOMMODATION
Fragility FactorMODERATELY RUGGED
Storage TypeGENERAL PURPOSE WAREHOUSE
Pole Quantity3
Arc Quenching MethodAIR
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Body StyleRECTANGULAR DIMENSIONAL ENVELOPE
Trip Release Ambient Temp Rating50.0 CELSIUS NOMINAL ALL LOCATIONS DEGC
Actuator FunctionTRIP-RESET
Main Contact Tripping Mechanism TypeTRIP FREE
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent150.0 ALL LOCATIONS
Actuator Position DesignationAT POLE TWO
Reset MethodMANUAL
Frequency in Hertz400.0 ALL LOCATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5925-00-727-7550375D413G13 INTERCHANGEABLE
Circuit Breaker
Eaton Corporation Dba Eaton Inoac
5925-00-876-9218 INTERCHANGEABLE
Circuit Breaker
Cross-Reference Index
Part NumberManufacturer
ETN2742 PRIMARY L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
Related Parts
5925-00-727-7550INTERCHANGEABLE
CIRCUIT BREAKER
375D413G13
5925-00-876-9218INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5925-00-489-7815?

NSN 5925-00-489-7815 is a Circuit Breaker, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-489-7815?

NSN 5925-00-489-7815 has 1 cross-referenced part number: ETN2742 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).

What NSN replaces 5925-00-489-7815?

There are 2 known substitutes for 5925-00-489-7815: 5925-00-727-7550, 5925-00-876-9218. Verify interchangeability with system specifications before substitution.

What are the specifications of ETN2742?

Key specifications for ETN2742: Precious Material and Location: CONTACTS SILVER; Terminal Type and Quantity: 6 CLIP; Manual Actuator Type and Quantity: 1 TOGGLE; Circuit Protection Type: OVERCURRENT ALL LOCATIONS. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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