PartsTable
Technical Data Sheet
Download PDF

91728378 — CIRCUIT BREAKER

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

91728378: CIRCUIT BREAKER.

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include special_features: 3 POLES,50/60HZ MOTOR DELAY,277/480VAC/100AMPS MAXIMUM VAC, part_name_assigned_by_controlling_agency: MAGNETIC CIRCUIT PROTECTOR. This part is cataloged in the U.S.

Government catalog under NSN 5925-01-642-5193, 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→ 91728378
NSN: 5925-01-642-5193
FSC: 5925 — Circuit Breakers
CAGE: F6481 — THALES SA (FRA)
SPECIFICATIONS
special_features3 POLES,50/60HZ MOTOR DELAY,277/480VAC/100AMPS MAXIMUM VAC
part_name_assigned_by_controlling_agencyMAGNETIC CIRCUIT PROTECTOR
NSN5925-01-642-5193
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN 91728378 MFR CIRCUIT BREAKER
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES3 POLES,50/60HZ MOTOR DELAY,277/480VAC/100AMPS MAXIMUM VAC
PART NAME ASSIGNED BY CONTROLLING AGENCYMAGNETIC CIRCUIT PROTECTOR
OTHER ITEMS IN FSC 5925 — Circuit Breakers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5925-00-001-1277 5925-00-001-2809 5925-00-001-3838 5925-00-001-5748 5925-00-001-5926 5925-00-001-5938 5925-00-001-5942 5925-00-001-5977
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 91728378?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 91728378?
91728378 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 91728378?
91728378 is cataloged in the U.S. Government catalog under NSN 5925-01-642-5193. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 91728378

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.