PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ETN5308-10Circuit Breaker

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5925-01-105-4407 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-105-4407 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-105-4407. Primary manufacturer part number: ETN5308-10.
Features
  • Circuit Breaker — FSC 5925
  • Body Length: 12.000 INCHES NOMINAL IN
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Center to Center Distance Between Terminals Parallel to Length: 9.875 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 3.000 INCHES NOMINAL IN
  • Unthreaded Mounting Hole Diameter: 0.203 INCHES NOMINAL IN
  • Pole Quantity: 3
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-105-4407, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-01-105-4407
Primary Part NumberETN5308-10
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusCANCELLED
Body Length12.000 INCHES NOMINAL IN
Storage TypeGENERAL PURPOSE WAREHOUSE
Center to Center Distance Between Terminals Parallel to Length9.875 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Distance Between Centerlines of Mounting Facilities Parallel to Body Width3.000 INCHES NOMINAL IN
Unthreaded Mounting Hole Diameter0.203 INCHES NOMINAL IN
Pole Quantity3
Boss Height0.250 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Length9.750 INCHES NOMINAL IN
Switch Contact ArrangementSINGLE POLE, DOUBLE THROW
Center to Center Distance Between Terminals Parallel to Width3.000 INCHES NOMINAL IN
Switch Terminal TypeWIRE LEAD
Switch Current Rating and Type in Amps1.0 AC AND 1.0 DC
Switch Voltage Rating and Type in Volts115.0 AC AND 120.0 DC
MaterialPLASTIC CASE
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
Manual Actuator Type and Quantity1 TOGGLE
Main Contact Tripping Mechanism TypeTRIP FREE
Switch Location and Position DesignationINTERNAL AT EACH POLE
Operating Voltage Type and Rating Per Pole in Volts500.0 AC ALL LOCATIONS
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent150.0 ALL LOCATIONS
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Maximum Continuous Load Current Rating Per Pole250.0 AMPERES AC ALL LOCATIONS
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Auxiliary Switch Function and Quantity3 ALARM
Trip Release Ambient Temp Rating50.0 CELSIUS NOMINAL ALL LOCATIONS DEGC
Inclosure Protection Type for Which DesignedGENERAL PURPOSE
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Reset MethodMANUAL
Actuator Position DesignationAT POLE TWO
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5905-00-494-5849 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5930-01-044-3781 INTERCHANGEABLE
Switch Assembly
2990-01-155-515145823 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
6220-01-302-961745823 INTERCHANGEABLE
Lamp Unit,vehicular
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
Cross-Reference Index
Part NumberManufacturer
313C748G25/452D379G02 Eaton Corporation Dba Eaton Inoac (USA)
ETN5308-10 PRIMARY L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
45-823 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
Related Parts
5905-00-494-5849INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5930-01-044-3781INTERCHANGEABLE
SWITCH ASSEMBLY
2990-01-155-5151INTERCHANGEABLE
PIPE,EXHAUST
45823
6220-01-302-9617INTERCHANGEABLE
LAMP UNIT,VEHICULAR
45823

Frequently Asked Questions

What is NSN 5925-01-105-4407?

NSN 5925-01-105-4407 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: cancelled.

What are the part numbers for NSN 5925-01-105-4407?

NSN 5925-01-105-4407 has 3 cross-referenced part numbers: 313C748G25/452D379G02 (Eaton Corporation Dba Eaton Inoac), ETN5308-10 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), 45-823 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc).

What NSN replaces 5925-01-105-4407?

There are 4 known substitutes for 5925-01-105-4407: 5905-00-494-5849, 5930-01-044-3781, 2990-01-155-5151 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ETN5308-10?

Key specifications for ETN5308-10: Body Length: 12.000 INCHES NOMINAL IN; Storage Type: GENERAL PURPOSE WAREHOUSE; Center to Center Distance Between Terminals Parallel to Length: 9.875 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S). 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-01-105-4407 still in active supply?

NSN 5925-01-105-4407 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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