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 switch/thermal circuit breaker (S-type TO CBE to EN 60934) with tease-free, trip-free, snap action mechanism. Designed for snap-in panel mounting utilising round hole or industry standard fuse-holder cut-out dimensions. Fe 44In Stock
Min.: 1
Mult.: 1

1110-Fx12-P1M1 Thermal Overcurrent 500 mA 250 VAC 50 VDC 1 Pole - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 42In Stock
Min.: 1
Mult.: 1

2-5700 Thermal Circuit Breakers Overcurrent Protection 32 A 250 VAC 28 VDC 1 Pole - 20 C + 60 C Non-Illuminated
Phoenix Contact Circuit Breakers EC-E 12A 12 A, W/ RMT RESET 7In Stock
Min.: 1
Mult.: 1

EC-E Circuit Breakers Electronic 12 A 24 VDC 1 Pole 0 C + 50 C Non-Illuminated Bulk
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 3In Stock
Min.: 1
Mult.: 1

IDG Circuit Breakers Marine Ignition Protection 15 A 240 VAC 80 VDC 3 Pole - 40 C + 85 C Non-Illuminated


AIRPAX Circuit Breakers Cir Brkr,HydMag 8In Stock
Min.: 1
Mult.: 1
Circuit Breakers Hydraulic Magnetic 240 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 45In Stock
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 3 A 1 Pole - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 24In Stock
Min.: 1
Mult.: 1

Snapak Thermal Circuit Breakers Thermal 10 A 2 Pole
Siemens Circuit Breakers MCB 5SJ4 1P 240V 2A 14K C-TRIP 17In Stock
Min.: 1
Mult.: 1
5SJ4 Circuit Breakers Miniature 2 A 240 VAC 60 VDC 1 Pole - 25 C + 55 C Non-Illuminated


Carling Technologies Circuit Breakers CIRCUIT BREAKER 42In Stock
10Expected 9/9/2026
Min.: 1
Mult.: 1
Hydraulic Magnetic Circuit Breakers 4.75 A 277 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers 5A 1POLE HYD MAGNTC 137In Stock
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 5 A 277 VAC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers Very cost effective design to meet international requirements. No exposed metal parts which are current-carrying except for terminals. R-type TO CBE to EN 60934. Units built to order. For requests under 500 pcs contact Customer Servi 2In Stock
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 10 A 240 VAC 28 VDC 1 Pole - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Bimetal operated single pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor 8In Stock
Min.: 1
Mult.: 1
Circuit Breakers Overcurrent Protection
E-T-A Circuit Breakers Bimetal operated single pole motor protection controls with automatic reset actuation, small physical size, reliable snap-action mechanism. Caution: In specifying these 2 products, care should be taken to ensure that automatic motor 5In Stock
Min.: 1
Mult.: 1
2-6500 Circuit Breakers Overcurrent Protection
E-T-A Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 3In Stock
3Expected 11/13/2026
Min.: 1
Mult.: 1

482 Thermal Circuit Breakers Thermal 50 A 125 VAC 28 VDC 1 Pole - 55 C + 75 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-type with push-push 10In Stock
Min.: 1
Mult.: 1

Feb-00 Thermal Circuit Breakers Overcurrent Protection 400 mA 250 VAC 28 VDC 1 Pole - 20 C + 60 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 1In 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 5 A 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers 5In Stock
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 3A, white rocker, C14 std filtered inlet, pre-wired 10In Stock
Min.: 1
Mult.: 1

Thermal Circuit Breakers Overcurrent Protection 3 A 240 VAC 50 VDC 2 Pole - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 15A, white rocker, C20 inlet, pre-wired 8In Stock
Min.: 1
Mult.: 1

Thermal Circuit Breakers Overcurrent Protection 15 A 240 VAC 50 VDC 2 Pole - 30 C + 60 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ UL 1077 4P 50A C CURVE 1In Stock
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 50 A 240 VAC, 415 VAC 4 Pole - 40 C + 75 C Non-Illuminated
Phoenix Contact Circuit Breakers CB TM2 5A F1 P 1In Stock
Min.: 1
Mult.: 1

CB TM2 Circuit Breakers Thermal Magnetic 5 A 80 VDC 2 Pole - 30 C + 60 C Non-Illuminated
Sensata Technologies Circuit Breakers 3In Stock
Min.: 1
Mult.: 1
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Sensata Technologies Circuit Breakers 3In Stock
Min.: 1
Mult.: 1
Altech Circuit Breakers 6A MCB CCHARL 480Y/277VAC UL508 1In Stock
Min.: 1
Mult.: 1

UM 6 A 277 VAC 80 VDC 3 Pole - 25 C + 55 C Non-Illuminated