PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77801-15GXBCircuit Breaker

Reliance Electric · NSN 5925-01-378-8409 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-378-8409 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-378-8409. Primary manufacturer part number: 77801-15GXB.
Features
  • Circuit Breaker — FSC 5925
  • External Actuator Linkage Arrangement: ONE, TWO, AND THREE LINKED
  • Actuator Position Designation: AT EACH POLE
  • Unpackaged Unit Weight: 2.000 POUNDS NOMINAL LBS
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Fragility Factor: MODERATELY RUGGED
  • Special Handling Feature: MAGNETIC
  • Pole Quantity: 3
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-378-8409, 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 Reliance Electric. Government technical data includes 19 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-01-378-8409
Primary Part Number77801-15GXB
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerReliance Electric
StatusACTIVE
External Actuator Linkage ArrangementONE, TWO, AND THREE LINKED
Actuator Position DesignationAT EACH POLE
Unpackaged Unit Weight2.000 POUNDS NOMINAL LBS
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Special Handling FeatureMAGNETIC
Pole Quantity3
MaterialPLASTIC CASE
Trip Release MethodMAGNETIC ALL LOCATIONS
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 ALL LOCATIONS
Actuator FunctionTRIP-RESET
Main Contact Tripping Mechanism TypeTRIP FREE
Reset MethodMANUAL
Body StyleRECTANGULAR DIMENSIONAL ENVELOPE
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Manual Actuator Type and Quantity3 TOGGLE
Inclosure Protection Type for Which DesignedGENERAL PURPOSE
Terminal Type and Quantity6 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-01-506-9077579-3313 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
77801-15GXB Reliance Electric (USA)
77801-15GXB Reliance Electric Company Dba Reliance & Dodge Brands (USA)
2002258 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
Related Parts
5330-01-506-9077INTERCHANGEABLE
GASKET
579-3313

Frequently Asked Questions

What is NSN 5925-01-378-8409?

NSN 5925-01-378-8409 is a Circuit Breaker, manufactured by Reliance Electric, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-378-8409?

NSN 5925-01-378-8409 has 3 cross-referenced part numbers: 77801-15GXB (Reliance Electric), 77801-15GXB (Reliance Electric Company Dba Reliance & Dodge Brands), 2002258 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center).

What NSN replaces 5925-01-378-8409?

There is 1 known substitute for 5925-01-378-8409: 5330-01-506-9077. Verify interchangeability with system specifications before substitution.

What are the specifications of 77801-15GXB?

Key specifications for 77801-15GXB: External Actuator Linkage Arrangement: ONE, TWO, AND THREE LINKED; Actuator Position Designation: AT EACH POLE; Unpackaged Unit Weight: 2.000 POUNDS NOMINAL LBS; Storage Type: GENERAL PURPOSE WAREHOUSE. 22 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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