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Technical Data Sheet

78-137-1 — Technical Data Sheet

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— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include body_style: MULTIPOLE-SINGLE ACTUATOR TYPE, body_width: 1.250 INCHES NOMINAL IN, body_length: 1.531 INCHES NOMINAL IN, reset_method: MANUAL, storage_type: GENERAL PURPOSE WAREHOUSE, bushing_length: 0.310 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5925-00-881-9766, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 78-137-1
NSN: 5925-00-881-9766
FSC: 5925
CAGE: 74193 — EATON CORP HEINEMANN PRODUCTS COMMERCIAL CONTROLS DIV (USA)
SPECIFICATIONS
body_styleMULTIPOLE-SINGLE ACTUATOR TYPE
body_width1.250 INCHES NOMINAL IN
body_length1.531 INCHES NOMINAL IN
reset_methodMANUAL
storage_typeGENERAL PURPOSE WAREHOUSE
pole_quantity2
bushing_length0.310 INCHES NOMINAL IN
actuator_functionTRIP-RESET
nominal_thread_size0.375 INCHES IN
trip_release_methodMAGNETIC ALL LOCATIONS
circuit_protection_typeOVERCURRENT ALL LOCATIONS
thread_quantity_per_inch32
NSN5925-00-881-9766
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN 78-137-1 MFR CIRCUIT BREAKER
KEY FEATURES
•
BODY LENGTH: 1.531 INCHES NOMINAL IN
•
MANUAL ACTUATOR TYPE AND QUANTITY: 1 TOGGLE
•
THREAD SERIES DESIGNATOR: UNEF
•
TERMINAL TYPE AND QUANTITY: 8 WIRE HOOK
•
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT: 120.0 ALL LOCATIONS
•
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS: 500.0 DC ALL LOCATIONS
•
INTERNAL TRIP RELEASE CONFIGURATION: RELAY TRIP ALL LOCATIONS
•
TRIP RELEASE CHARACTERISTIC: INSTANTANEOUS ALL LOCATIONS
TECHNICAL CHARACTERISTICS
BODY LENGTH1.531 INCHES NOMINAL IN
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
THREAD SERIES DESIGNATORUNEF
TERMINAL TYPE AND QUANTITY8 WIRE HOOK
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT120.0 ALL LOCATIONS
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS500.0 DC ALL LOCATIONS
INTERNAL TRIP RELEASE CONFIGURATIONRELAY TRIP ALL LOCATIONS
TRIP RELEASE CHARACTERISTICINSTANTANEOUS ALL LOCATIONS
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
RESET METHODMANUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
16738181-001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
169164InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
42514InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3726InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DA48InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B107.39InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78-137-1?
78-137-1 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 78-137-1?
There are 15 known substitutes for 78-137-1: 16738181-001, 169164, 42514 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 78-137-1?
78-137-1 is cataloged in the Federal Logistics Information System under NSN 5925-00-881-9766. This indicates validated use in U.S. government and defense supply chains.
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