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 (KRW) 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 Single pole high performance thermal circuit breaker, with push-to-reset tease free, trip-free snap action mechanism (R-type TO CBE to EN 60934). Designed for threadneck panel mounting and for applications with a high fault current sw 1In Stock
Min.: 1
Mult.: 1
4130 Thermal Circuit Breakers Thermal Magnetic
E-T-A Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 8A 2In Stock
Min.: 1
Mult.: 1

4230-T Miniature Circuit Breakers Thermal Magnetic


E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 1In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 6In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 40 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ 1 pole , 10A, pushbutton w/ white trip band, C14 inlet, pre-wired 4In Stock
Min.: 1
Mult.: 1

Thermal Circuit Breakers Overcurrent Protection 10 A 250 VAC 28 VDC 1 Pole - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 10A, white rocker, C20 inlet, pre-wired 4In Stock
Min.: 1
Mult.: 1

Thermal Circuit Breakers Overcurrent Protection 1 Pole - 30 C + 60 C Illuminated
Altech Circuit Breakers 40A D Characteristic UL 508 1 POLE 11In Stock
1Expected 10/16/2026
Min.: 1
Mult.: 1

UM 40 A 277 VAC 24 VDC 1 Pole - 25 C + 55 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Manual Motor Controller 100 A 277 VAC, 480 VAC 2 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 1 Pole Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers 2 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 2 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
Min.: 1
Mult.: 1
IAL/IDL/IML/IUL Circuit Breakers Hydraulic Magnetic 15 A - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers MCB S200MUC 3P K 20A AC/DC 3In Stock
Min.: 1
Mult.: 1
Circuit Breakers 20 A 3 Pole
ABB Circuit Breakers MCB ST200M 3P B 60A UL1077 1In Stock
Min.: 1
Mult.: 1
ST200M Circuit Breakers 60 A 3 Pole
ABB Circuit Breakers MCB SU200MR RTT 2P K 20A BCP 1In Stock
9Expected 10/8/2026
Min.: 1
Mult.: 1
SU200MR Circuit Breakers 20 A 2 Pole
APC by Schneider Electric Circuit Breakers MOLDED CASE CIRCUIT BRKR 600Y/347V 100A 1In Stock
Min.: 1
Mult.: 1
APC by Schneider Electric Circuit Breakers MINIATURE CIRCUIT BREAKER 240V 50A 3In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 50 A 120 VAC, 240 VAC 2 Pole Non-Illuminated
IDEC Circuit Breakers Circuit Protector 7.5A 1In Stock
Min.: 1
Mult.: 1
NRB Circuit Breakers 7.5 A 250 VAC 65 VDC 2 Pole - 40 C + 85 C Non-Illuminated


IDEC Circuit Breakers Circuit Protector 1In Stock
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C


E-T-A Circuit Breakers Inactive Part (Build to Order) - Alternative Stocked Part Number 2210-T220-K0M1-H131-8A Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1
2210-T2 Thermal Circuit Breakers Thermal Magnetic
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 12A 4In Stock
Min.: 1
Mult.: 1

4230-T Miniature Circuit Breakers Thermal Magnetic
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 35A 6In Stock
Min.: 1
Mult.: 1

4230-T Miniature Circuit Breakers Thermal Magnetic
E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 1In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 20 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 5In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 15 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers Single and multipole magnetic circuit breakers with trip-free mechanism and toggle actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (S-type MO or HM CBE to EN 60934) ensures suitability for 8In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 1 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated