Circuit Breakers

 Circuit Breakers
Circuit breakers are in stock with same-day shipping at Mouser from leading manufacturers. Mouser is an authorized distributor for many circuit breaker manufacturers including ABB, Carling Technologies, Eaton, E-T-A Circuit Breakers, Phoenix Contact, Sensata, Schurter, Siemens, TE Connectivity & more.
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Please view our large selection of circuit breakers below.

Results: 151,461
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Product Type Current Rating Voltage Rating AC Voltage Rating DC Number of Poles Minimum Operating Temperature Maximum Operating Temperature Illuminated Packaging
E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload protection of motors 8In Stock
Min.: 1
Mult.: 1

3120-N Thermal Circuit Breakers Overcurrent Protection
E-T-A Circuit Breakers Min Ord Qty 10. The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot 10In Stock
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection


E-T-A Circuit Breakers 508, 1P, DM, 48VDC, N/O, 16A 10In Stock
11Expected 9/11/2026
Min.: 1
Mult.: 1
ESX10-TC Circuit Breakers Electronic 16 A 48 VDC 1 Pole - 25 C + 60 C Illuminated
Weidmuller Circuit Breakers QL-A-1-13-DM-KM-5.0 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers FAZ-C0,5/1-RT-SP FAZ-NA RT 1P .5A C C 4In Stock
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 500 mA 240 VAC 1 Pole - 40 C + 75 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ-NA 240VAC 3P 20A C CURVE ring term 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 20 A 240 VAC, 415 VAC 3 Pole - 40 C + 75 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
Min.: 1
Mult.: 1
LEL/LML Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
LEL/LML Circuit Breakers Hydraulic Magnetic 2 Pole Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL
LUTZE / Amphenol Circuit Breakers LOCC-BOX-M-I DC12/24VDC, 1-8A, 5 CHARAC. 1In Stock
Min.: 1
Mult.: 1
LOCC-BOX Circuit Breakers DC Breaker 8 A 12 VDC, 24 VDC - 25 C + 50 C Illuminated


Altech Circuit Breakers TR11sup.prot.,wingW,bl. 4In Stock
Min.: 1
Mult.: 1
TR11 Circuit Breakers Supplementary Protector 12 A 240 VAC 50 VDC 1 Pole - 20 C + 60 C Non-Illuminated
Murrelektronik Circuit Breakers MICO BASIC 4.6 electronic circuit protection, 4 CHANNELS, IN: 24 V DC OUT: 24 V DC / 6 A 3In Stock
Min.: 1
Mult.: 1

9 Circuit Breakers MICO 6 A 24 VDC 4 Pole 0 C + 55 C Non-Illuminated Bulk
AIRPAX Circuit Breakers Cir Brkr,HydMag 1In Stock
Min.: 1
Mult.: 1
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers Special Construction 100 A 480 VAC 1 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
Min.: 1
Mult.: 1

IEL Circuit Breakers 18 A 250 VAC 3 Pole - 40 C + 85 C Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr,HydMag 2In Stock
Min.: 1
Mult.: 1
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers 5 A 1 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 2 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1

Circuit Breakers Marine Ignition Protection 10 A 240 VAC 80 VDC 2 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers 5 A 1 Pole - 40 C + 85 C Non-Illuminated