PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EHD-3040Circuit Breaker

Eaton Corporation Dba Eaton Inoac · NSN 5925-00-443-4047 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-443-4047 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-443-4047. Primary manufacturer part number: EHD-3040.
Features
  • Circuit Breaker — FSC 5925
  • Maximum Continuous Load Current Rating Per Pole: 40.0 AMPERES AC ALL LOCATIONS
  • Main Contact Tripping Mechanism Type: TRIP FREE
  • Reset Method: MANUAL
  • Actuator Function: TRIP-RESET
  • Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 135.0 ALL LOCATIONS
  • Terminal Type and Quantity: 6 COMPRESSION
  • Material: PLASTIC CASE
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-443-4047, 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 Eaton Corporation Dba Eaton Inoac. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-00-443-4047
Primary Part NumberEHD-3040
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac
StatusCANCELLED
Maximum Continuous Load Current Rating Per Pole40.0 AMPERES AC ALL LOCATIONS
Main Contact Tripping Mechanism TypeTRIP FREE
Reset MethodMANUAL
Actuator FunctionTRIP-RESET
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent135.0 ALL LOCATIONS
Terminal Type and Quantity6 COMPRESSION
MaterialPLASTIC CASE
Test Data Document81348-W-C-375 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Actuator Position DesignationAT POLE TWO
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Operating Voltage Type and Rating Per Pole in Volts480.0 AC ALL LOCATIONS
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps14000.0 AC ALL LOCATIONS
Trip Release Ambient Temp Rating40.0 CELSIUS NOMINAL ALL LOCATIONS DEGC
Trip Release CharacteristicTIME DELAY ALL LOCATIONS
Specification/standard Data81348-W-C-375/18 GOVERNMENT SPECIFICATION
Special Handling FeatureMAGNETIC
Fragility FactorMODERATELY RUGGED
Pole Quantity3
Unthreaded Mounting Hole Diameter0.188 INCHES NOMINAL IN
Boss Height0.125 INCHES NOMINAL IN
Storage TypeGENERAL PURPOSE WAREHOUSE
Center to Center Distance Between Terminals Parallel to Length4.000 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Length4.500 INCHES NOMINAL IN
Center to Center Distance Between Terminals Parallel to Width1.000 INCHES NOMINAL IN
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Distance Between Centerlines of Mounting Facilities Parallel to Body Width1.000 INCHES NOMINAL IN
Body Height3.375 INCHES NOMINAL IN
Body Length6.000 INCHES NOMINAL IN
Body Width2.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5925-00-211-1900 INTERCHANGEABLE
Circuit Breaker
5925-00-232-2840 INTERCHANGEABLE
Circuit Breaker
5925-00-236-9000 INTERCHANGEABLE
Circuit Breaker
5925-00-433-1966 INTERCHANGEABLE
Circuit Breaker
5925-00-481-2093 INTERCHANGEABLE
Circuit Breaker
5925-01-096-4663 INTERCHANGEABLE
Circuit Breaker
5925-01-096-4664 INTERCHANGEABLE
Circuit Breaker
5925-01-096-4697 INTERCHANGEABLE
Circuit Breaker
5925-01-128-4369 INTERCHANGEABLE
Circuit Breaker
5925-01-259-4726 INTERCHANGEABLE
Circuit Breaker
Cross-Reference Index
Part NumberManufacturer
EHD-3040 Eaton Corporation Dba Eaton Inoac (USA)
W-C-375/18 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
EHB3040 Eaton Corporation Dba Eaton Inoac (USA)
WC375/18-007 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5925-00-211-1900INTERCHANGEABLE
CIRCUIT BREAKER
5925-00-232-2840INTERCHANGEABLE
CIRCUIT BREAKER
5925-00-236-9000INTERCHANGEABLE
CIRCUIT BREAKER
5925-00-433-1966INTERCHANGEABLE
CIRCUIT BREAKER
5925-00-481-2093INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-096-4663INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-096-4664INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-096-4697INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-128-4369INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-259-4726INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-292-3301INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5925-00-443-4047?

NSN 5925-00-443-4047 is a Circuit Breaker, manufactured by Eaton Corporation Dba Eaton Inoac, classified under FSC 5925 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5925-00-443-4047?

NSN 5925-00-443-4047 has 4 cross-referenced part numbers: EHD-3040 (Eaton Corporation Dba Eaton Inoac), W-C-375/18 (Federal Specifications Promulgated by General Services Administration Washington DC), EHB3040 (Eaton Corporation Dba Eaton Inoac), WC375/18-007 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5925-00-443-4047?

There are 11 known substitutes for 5925-00-443-4047: 5925-00-211-1900, 5925-00-232-2840, 5925-00-236-9000 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EHD-3040?

Key specifications for EHD-3040: Maximum Continuous Load Current Rating Per Pole: 40.0 AMPERES AC ALL LOCATIONS; Main Contact Tripping Mechanism Type: TRIP FREE; Reset Method: MANUAL; Actuator Function: TRIP-RESET. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-00-443-4047 still in active supply?

NSN 5925-00-443-4047 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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