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: 151 451
Select Image Part # Mfr. Description Datasheet Availability Pricing (CRC) 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 Actuator Minimum Operating Temperature Maximum Operating Temperature Illuminated Packaging
ABB Circuit Breakers XT4H 250 TMF 250-2500 3P F F UL/CSA 2In Stock
Min.: 1
Mult.: 1
SACE Tmax XT
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 93In Stock
Min.: 1
Mult.: 1

1110-Fx12-P1M1 Circuit Breakers Thermal 2.5 A 250 VAC 50 VDC 1 Pole - 20 C + 60 C Non-Illuminated
ABB Circuit Breakers XT4N 250 EKIPLS/I IN=150A3PFFUL/CSA 3In Stock
Min.: 1
Mult.: 1
SACE Tmax XT
Siemens Circuit Breakers BRKR 3VA53 3P 350A 35KA FTAM 1In Stock
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 350 A 690 VAC 500 VDC 3 Pole - 25 C + 70 C Non-Illuminated


E-T-A Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A 41In Stock
90Expected 9/25/2026
Min.: 1
Mult.: 1
ESX10-TC Circuit Breakers Electronic 10 A 48 VDC 1 Pole - 25 C + 60 C Illuminated
ABB Circuit Breakers MCB S800S 2P C 20A 3In Stock
Min.: 1
Mult.: 1
Circuit Breakers 20 A 2 Pole
Siemens Circuit Breakers BRKR 3VA51 3P 40A 25KA FTFM 5In Stock
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 40 A 690 VAC 500 VDC 3 Pole - 25 C + 70 C Non-Illuminated
Schneider Electric Circuit Breakers NSX100H 70kA AC 3P3D 100A 2.2 1In Stock
Min.: 1
Mult.: 1
C10
Square D Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A 1In Stock
Min.: 1
Mult.: 1
HGF


Weidmuller Circuit Breakers CB4201-10, 1.5A/TS35 13In Stock
Min.: 1
Mult.: 1
CB4201 AC
E-T-A Circuit Breakers Miniaturised single pole press-to-reset cycling trip free thermal circuit breaker designed for automotive fuse block installation. Extends the benefits of circuit breaker performance and convenience to applications which are cost cri 330In Stock
Min.: 1
Mult.: 1

1610 Miniature Circuit Breakers Automotive 6 A 24 VDC 1 Pole - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S221-P1M1-Z241-12A 94 10In Stock
Min.: 1
Mult.: 1
2210-S2 Thermal Circuit Breakers Thermal Magnetic
E-T-A Circuit Breakers Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) en 13In Stock
Min.: 1
Mult.: 1
8340-G Hydraulic Magnetic Circuit Breakers Thermal Magnetic 20 mA 240 VAC, 415 VAC 80 VDC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers Single pole thermal-magnetic circuit breaker with tease-free, trip-free, snap action mechanism and two button operation (M-type TM CBE to EN 60934). Designed for plug-in mounting with E-T-A sockets 17-P10-Si, 23-P10-Si, 63-P10-Si; or 43In Stock
Min.: 1
Mult.: 1

3600 Thermal Circuit Breakers Thermal Magnetic 3 A 240 VAC 65 VDC 1 Pole - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole miniaturised magnetic circuit breakers with unique high-speed operating mechanism and push/pull on/off manual actuation. Fitted with electrically separate excitation and switching circuits, and one pair of auxiliary contac 43In Stock
Min.: 1
Mult.: 1

808 Circuit Breakers Miniature 500 mA 24 VDC 1 Pole - 30 C + 70 C Non-Illuminated


E-T-A Circuit Breakers 508, 1P, DM, 24VDC, 1CH, 4A, No Comm 43In Stock
Min.: 1
Mult.: 1

REX12-T Circuit Breakers Electronic 4 A 24 VDC 1 Pole - 25 C + 60 C Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 13In Stock
Min.: 1
Mult.: 1
IEL
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 48In Stock
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 15 A 2 Pole - 40 C + 85 C Non-Illuminated
Siemens Circuit Breakers MSP S00 FOR XFRMR 5.5-8A SCREW 9In Stock
Min.: 1
Mult.: 1

3RV2 Circuit Breakers Transformer Protection 8 A 690 VAC 3 Pole - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers TMCB UL489 S00 3.2A SCREW 5In Stock
Min.: 1
Mult.: 1

3RV2 Circuit Breakers System Protection 3.2 A 690 VAC 3 Pole - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Compact single pole thermal circuit breaker with push-to-reset, tease free, trip free, snap action mechanism and separate (colour coded) manual release. Combining full feature circuit breaker protection and convenience with low cost o 348In Stock
Min.: 1
Mult.: 1

1170 Miniature Circuit Breakers Automotive 8 A 28 VDC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers Compact single pole thermal circuit breaker with push-to-reset, tease free, trip free, snap action mechanism and separate (colour coded) manual release. Combining full feature circuit breaker protection and convenience with low cost o 166In Stock
Min.: 1
Mult.: 1

1170 Miniature Circuit Breakers Automotive 30 A 28 VDC 1 Pole - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers Combination of single pole circuit breaker and ON/OFF switch with soft-touch rocker actuation. Contoured rockers are available with a choice of colours and legends, with optional illumination. The 3131 is sealed to provide IP66 rated 341In Stock
Min.: 1
Mult.: 1

3131-A/C Circuit Breakers Thermal 10 A 240 VAC 28 VDC 1 Pole - 20 C + 60 C Illuminated


AIRPAX Circuit Breakers Cir Brkr Hyd Mag 33In Stock
Min.: 1
Mult.: 1

IUGN Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 240 VAC 80 VDC 2 Pole Toggle - 40 C + 85 C Non-Illuminated


Schneider Electric Circuit Breakers MAN-START 600VAC 65AMP IEC 5In Stock
Min.: 1
Mult.: 1

GV Circuit Breakers Thermal Magnetic 65 A 690 VAC 3 Pole - 20 C + 60 C Non-Illuminated