M39019-2-78 — CIRCUIT BREAKER

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

M39019-2-78: CIRCUIT BREAKER.

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include body_style: SINGLE POLE TYPE, body_width: 0.625 INCHES MAXIMUM IN, body_length: 1.562 INCHES MAXIMUM IN, reset_method: MANUAL, bushing_length: 0.280 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, actuator_function: TRIP-RESET. This part is cataloged in the U.S.

Government catalog under NSN 5925-00-252-4209, 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→ M39019-2-78

NSN: 5925-00-252-4209
FSC: 5925 — Circuit Breakers
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

body_style	SINGLE POLE TYPE
body_width	0.625 INCHES MAXIMUM IN
body_length	1.562 INCHES MAXIMUM IN
reset_method	MANUAL
pole_quantity	1
bushing_length	0.280 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
actuator_function	TRIP-RESET
frequency_in_hertz	60.0 SINGLE LOCATION
nominal_thread_size	0.375 INCHES IN
trip_release_method	MAGNETIC SINGLE LOCATION
switch_terminal_type	TAB, SOLDER LUG
circuit_protection_type	OVERCURRENT SINGLE LOCATION
NSN	5925-00-252-4209

COMPONENT DIAGRAM

KEY FEATURES

•

BUSHING LENGTH: 0.280 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN

•

RESET METHOD: MANUAL

•

INTERNAL TRIP RELEASE CONFIGURATION: SERIES TRIP SINGLE LOCATION

•

OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS: 240.0 AC SINGLE LOCATION

•

MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED BUSHING WITH PANEL SEAL

•

ACTUATOR POSITION DESIGNATION: AT POLE ONE

•

ULTIMATE TRIP TIME PER POLE IN SECONDS: 3.000 MINIMUM AND 60.000 MAXIMUM SINGLE LOCATION

•

SWITCH TERMINAL TYPE: TAB, SOLDER LUG

TECHNICAL CHARACTERISTICS

BUSHING LENGTH	0.280 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
RESET METHOD	MANUAL
INTERNAL TRIP RELEASE CONFIGURATION	SERIES TRIP SINGLE LOCATION
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS	240.0 AC SINGLE LOCATION
MOUNTING FACILITY TYPE AND QUANTITY	1 THREADED BUSHING WITH PANEL SEAL
ACTUATOR POSITION DESIGNATION	AT POLE ONE
ULTIMATE TRIP TIME PER POLE IN SECONDS	3.000 MINIMUM AND 60.000 MAXIMUM SINGLE LOCATION
SWITCH TERMINAL TYPE	TAB, SOLDER LUG
FREQUENCY IN HERTZ	60.0 SINGLE LOCATION
BODY STYLE	SINGLE POLE TYPE

SUBSTITUTES & CROSS-REFERENCES 9

M39019-2-80Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

260-4061-640Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

MIL-PRF-39019/2Reference document

Same NSN cross-reference

Reference document — Identification reference

MIL-PRF-39019/2GReference document

Same NSN cross-reference

Reference document — Secondary reference

M39019/02-258Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MIL-C-39019/2Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is M39019-2-78?

M39019-2-78 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).

What parts can replace M39019-2-78?

There are 9 known substitutes for M39019-2-78: M39019-2-80, 260-4061-640, MIL-PRF-39019/2 and 6 more. Substitute compatibility should be verified for your specific system.

What is the NSN for M39019-2-78?

M39019-2-78 is cataloged in the U.S. Government catalog under NSN 5925-00-252-4209. This indicates validated use in U.S. government and defense supply chains.

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