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121B30-B2M — CIRCUIT BREAKER

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

121B30-B2M: CIRCUIT BREAKER.

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include body_style: SINGLE POLE TYPE, body_width: 0.790 INCHES NOMINAL IN, body_height: 0.640 INCHES NOMINAL IN, body_length: 1.240 INCHES NOMINAL IN, boss_height: 0.560 INCHES NOMINAL IN, reset_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 5925-01-600-8047, 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→ 121B30-B2M
NSN: 5925-01-600-8047
FSC: 5925 — Circuit Breakers
CAGE: 1JY78 — COOPER BUSSMANN, LLC (USA)
SPECIFICATIONS
body_styleSINGLE POLE TYPE
body_width0.790 INCHES NOMINAL IN
body_height0.640 INCHES NOMINAL IN
body_length1.240 INCHES NOMINAL IN
boss_height0.560 INCHES NOMINAL IN
reset_methodAUTOMATIC
overall_width0.790 INCHES NOMINAL IN
pole_quantity1
nominal_thread_size0.190 INCHES IN
trip_release_methodTHERMAL ALL LOCATIONS
circuit_protection_typeOVERCURRENT ALL LOCATIONS
trip_release_duty_cycleCONTINUOUS ALL LOCATIONS
NSN5925-01-600-8047
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN 121B30-B2M MFR CIRCUIT BREAKER
KEY FEATURES
•
RESET METHOD: AUTOMATIC
•
INTERNAL TRIP RELEASE CONFIGURATION: SERIES TRIP ALL LOCATIONS
•
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS: 14.0 DC AND 28.0 DC ALL LOCATIONS
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 UNTHREADED HOLE(S)
•
BODY STYLE: SINGLE POLE TYPE
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 1.560 INCHES NOMINAL IN
•
CIRCUIT PROTECTION TYPE: OVERCURRENT ALL LOCATIONS
•
BODY WIDTH: 0.790 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RESET METHODAUTOMATIC
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP ALL LOCATIONS
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS14.0 DC AND 28.0 DC ALL LOCATIONS
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S)
BODY STYLESINGLE POLE TYPE
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH1.560 INCHES NOMINAL IN
CIRCUIT PROTECTION TYPEOVERCURRENT ALL LOCATIONS
BODY WIDTH0.790 INCHES NOMINAL IN
BODY HEIGHT0.640 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.196 INCHES NOMINAL IN
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 1
CB-30ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121B30-B2M?
121B30-B2M is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 121B30-B2M?
There is 1 known substitute for 121B30-B2M: CB-30A. Substitute compatibility should be verified for your specific system.
What is the NSN for 121B30-B2M?
121B30-B2M is cataloged in the U.S. Government catalog under NSN 5925-01-600-8047. This indicates validated use in U.S. government and defense supply chains.
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