PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AM555MG6-7.5-250-14-400Circuit Breaker

Eaton Corp Heinemann Products Commercial Controls Div · NSN 5925-00-752-3176 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-752-3176 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-752-3176. Primary manufacturer part number: AM555MG6-7.5-250-14-400.
Features
  • Circuit Breaker — FSC 5925
  • Frequency in Hertz: 400.0 ALL LOCATIONS
  • Trip Release Method: MAGNETIC-HYDRAULIC ALL LOCATIONS
  • Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps: 1000.0 AC ALL LOCATIONS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Inclosure Protection Type for Which Designed: FUNGUS RESISTANT AND MOISTURE RESISTANT AND EXPLOSION RESISTANT
  • Body Style: MULTIPOLE-MULTIPLE ACTUATOR TYPE
  • Boss Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-752-3176, 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 Corp Heinemann Products Commercial Controls Div. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-752-3176
Primary Part NumberAM555MG6-7.5-250-14-400
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerEaton Corp Heinemann Products Commercial Controls Div
StatusACTIVE
Frequency in Hertz400.0 ALL LOCATIONS
Trip Release MethodMAGNETIC-HYDRAULIC ALL LOCATIONS
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps1000.0 AC ALL LOCATIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT AND EXPLOSION RESISTANT
Body StyleMULTIPOLE-MULTIPLE ACTUATOR TYPE
Boss Height0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Center to Center Distance Between Terminals Parallel to Width0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Pole Quantity3
Thread Quantity Per Inch32
Storage TypeGENERAL PURPOSE WAREHOUSE
Mounting Facility Type and Quantity6 THREADED HOLE(S)
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Width0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Body Width2.240 INCHES MINIMUM AND 2.251 INCHES MAXIMUM IN
Terminal Type and Quantity9 THREADED STUD
Maximum Continuous Load Current Rating Per Pole7.5 AMPERES AC ALL LOCATIONS
Body Length2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent150.0 ALL LOCATIONS
Actuator FunctionTRIP-RESET
Trip Release CharacteristicTIME DELAY ALL LOCATIONS
Center to Center Distance Between Terminals Parallel to Length1.928 INCHES MINIMUM AND 1.948 INCHES MAXIMUM IN
Arc Quenching MethodMAGNETIC BLOWOUT
Fragility FactorMODERATELY RUGGED
Mounting Surface to Terminal End Distance2.461 INCHES MINIMUM AND 2.481 INCHES MAXIMUM IN
MaterialPLASTIC CASE
Actuator Position DesignationAT EACH POLE
Operating Voltage Type and Rating Per Pole in Volts240.0 AC ALL LOCATIONS
Internal Trip Release ConfigurationSERIES TRIP W/AUXILIARY LOAD TERMINAL ALL LOCATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-379-432723512675 INTERCHANGEABLE
Gasket Set
Rolls-Royce Solutions America Inc
5930-00-581-60339000S6202-74290 TYPE S2JR15-3 INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
5995-01-631-464326912 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cables to Go
Cross-Reference Index
Part NumberManufacturer
AM555MG6-7.5-250-14-400 Eaton Corp Heinemann Products Commercial Controls Div (USA)
745563-99 Air-a-Plane Corp (USA)
50031726 Bureau De Gestion Otan Hawk (FRA)
AM555MG6-7.5-240-14-400 Eaton Corp Heinemann Products Commercial Controls Div (USA)
26912 Triumph Thermal Systems - Maryland, Inc. (USA)
AM444CSKMG6-7-5-240-14-400 Eaton Corp Heinemann Products Commercial Controls Div (USA)
Related Parts
5330-00-379-4327INTERCHANGEABLE
GASKET SET
23512675
5930-00-581-6033INTERCHANGEABLE
SWITCH,ROTARY
9000S6202-74290 TYPE S2JR15-3
5995-01-631-4643INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
26912

Frequently Asked Questions

What is NSN 5925-00-752-3176?

NSN 5925-00-752-3176 is a Circuit Breaker, manufactured by Eaton Corp Heinemann Products Commercial Controls Div, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-752-3176?

NSN 5925-00-752-3176 has 6 cross-referenced part numbers: AM555MG6-7.5-250-14-400 (Eaton Corp Heinemann Products Commercial Controls Div), 745563-99 (Air-a-Plane Corp), 50031726 (Bureau De Gestion Otan Hawk), AM555MG6-7.5-240-14-400 (Eaton Corp Heinemann Products Commercial Controls Div), 26912 (Triumph Thermal Systems - Maryland, Inc.) and 1 more.

What NSN replaces 5925-00-752-3176?

There are 3 known substitutes for 5925-00-752-3176: 5330-00-379-4327, 5930-00-581-6033, 5995-01-631-4643. Verify interchangeability with system specifications before substitution.

What are the specifications of AM555MG6-7.5-250-14-400?

Key specifications for AM555MG6-7.5-250-14-400: Frequency in Hertz: 400.0 ALL LOCATIONS; Trip Release Method: MAGNETIC-HYDRAULIC ALL LOCATIONS; Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps: 1000.0 AC ALL LOCATIONS; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 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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