PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27051Circuit Breaker

Triumph Thermal Systems - Maryland, Inc. · NSN 5925-00-721-2533 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-721-2533 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-721-2533. Primary manufacturer part number: 27051.
Features
  • Circuit Breaker — FSC 5925
  • Body Length: 3.719 INCHES NOMINAL IN
  • Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS
  • Reset Method: MANUAL
  • Actuator Position Designation: AT EACH POLE
  • Maximum Continuous Load Current Rating Per Pole: 50.0 AMPERES AC ALL LOCATIONS
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 2.750 INCHES NOMINAL IN
  • Boss Height: 0.156 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-721-2533, 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 Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-721-2533
Primary Part Number27051
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerTriumph Thermal Systems - Maryland, Inc.
StatusACTIVE
Body Length3.719 INCHES NOMINAL IN
Internal Trip Release ConfigurationSERIES TRIP ALL LOCATIONS
Reset MethodMANUAL
Actuator Position DesignationAT EACH POLE
Maximum Continuous Load Current Rating Per Pole50.0 AMPERES AC ALL LOCATIONS
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.750 INCHES NOMINAL IN
Boss Height0.156 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Width1.031 INCHES NOMINAL IN
Mounting Surface to Terminal End Distance3.239 INCHES NOMINAL IN
Thread Quantity Per Inch32
Center to Center Distance Between Terminals Parallel to Width1.031 INCHES NOMINAL IN
Pole Quantity3
Mounting Facility Type and Quantity6 THREADED HOLE(S)
Center to Center Distance Between Terminals Parallel to Length3.063 INCHES NOMINAL IN
Terminal Type and Quantity6 THREADED STUD
Nominal Thread Size0.138 INCHES IN
Trip Release CharacteristicTIME DELAY ALL LOCATIONS
Main Contact Tripping Mechanism TypeTRIP FREE
External Actuator Linkage ArrangementONE, TWO, AND THREE LINKED
Frequency in Hertz400.0 ALL LOCATIONS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Operating Voltage Type and Rating Per Pole in Volts208.0 AC ALL LOCATIONS
Trip Delay Time in Seconds Per Rated Continuous Current4.000 MINIMUM AT 200 PCT AND 10.500 MAXIMUM AT 200 PCT ALL LOCATIONS
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT AND EXPLOSION RESISTANT
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent150.0 ALL LOCATIONS
Actuator FunctionTRIP-RESET
Trip Release MethodMAGNETIC-HYDRAULIC ALL LOCATIONS
MaterialPLASTIC CASE
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps1500.0 AC ALL LOCATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2920-00-253-1186 INTERCHANGEABLE
Contact Set,distributor
2910-00-364-4995 INTERCHANGEABLE
Swivel,rod End Connector
6625-00-946-013027051 INTERCHANGEABLE
Plunger,probe
Telephonics Corp/prd Instruments
5930-00-979-669227051 INTERCHANGEABLE
Switch,micro
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
5340-00-996-64902705-1 INTERCHANGEABLE
Shield,expansion
Star Expansion Co
4720-01-131-689727051 INTERCHANGEABLE
Hose Assembly,nonmetallic
Alter Harry Co the Div of T E C
5930-01-226-587827051 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
6545-01-599-5586UA 055A INTERCHANGEABLE
First Aid Kit,utility
Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
Cross-Reference Index
Part NumberManufacturer
3XAM1516MG3-50-208VAC400-12 Eaton Corp Heinemann Products Commercial Controls Div (USA)
27051 PRIMARY Triumph Thermal Systems - Maryland, Inc. (USA)
3XAM1516MG3-50-250VAC400C2 Eaton Corp Heinemann Products Commercial Controls Div (USA)
50031719 Bureau De Gestion Otan Hawk Nhpo (FRA)
745563A85 Air-a-Plane Corp (USA)
50031719 Nspa-Ld/hawk
50031719 Bureau De Gestion Otan Hawk (FRA)
Related Parts
2920-00-253-1186INTERCHANGEABLE
CONTACT SET,DISTRIBUTOR
2910-00-364-4995INTERCHANGEABLE
SWIVEL,ROD END CONNECTOR
6625-00-946-0130INTERCHANGEABLE
PLUNGER,PROBE
27051
5930-00-979-6692INTERCHANGEABLE
SWITCH,MICRO
27051
5340-00-996-6490INTERCHANGEABLE
SHIELD,EXPANSION
2705-1
4720-01-131-6897INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
27051
5930-01-226-5878INTERCHANGEABLE
SWITCH,FLOW
27051
6545-01-599-5586INTERCHANGEABLE
FIRST AID KIT,UTILITY
UA 055A

Frequently Asked Questions

What is NSN 5925-00-721-2533?

NSN 5925-00-721-2533 is a Circuit Breaker, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-721-2533?

NSN 5925-00-721-2533 has 7 cross-referenced part numbers: 3XAM1516MG3-50-208VAC400-12 (Eaton Corp Heinemann Products Commercial Controls Div), 27051 (Triumph Thermal Systems - Maryland, Inc.), 3XAM1516MG3-50-250VAC400C2 (Eaton Corp Heinemann Products Commercial Controls Div), 50031719 (Bureau De Gestion Otan Hawk Nhpo), 745563A85 (Air-a-Plane Corp) and 2 more.

What NSN replaces 5925-00-721-2533?

There are 8 known substitutes for 5925-00-721-2533: 2920-00-253-1186, 2910-00-364-4995, 6625-00-946-0130 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27051?

Key specifications for 27051: Body Length: 3.719 INCHES NOMINAL IN; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Reset Method: MANUAL; Actuator Position Designation: AT EACH POLE. 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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