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: 151,437
Select Image Part # Mfr. Description Datasheet Availability Pricing (GBP) 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


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 Push to Reset - 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 Push to Reset - 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 Rocker - 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
Siemens Circuit Breakers CIRCUIT BREAKER SIZE S00, CLASS 10 13In Stock
Min.: 1
Mult.: 1

3RV2 Circuit Breakers Motor Protection 5 A 690 VAC 3 Pole Rotary - 20 C + 60 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 Rotary - 20 C + 60 C Non-Illuminated
Eaton Electrical Circuit Breakers QBHW 3P 100A 240VAC MAX 22KAIC 1In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Miniaturised double pole thermal circuit breaker with push-to-reset tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 60934). Threadneck panel mounting. Suitable for line and neutral switching - the thermal actuator op 65In Stock
Min.: 1
Mult.: 1

1140 Miniature Circuit Breakers Overcurrent Protection 15 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 190In Stock
Min.: 1
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3130-F Thermal Overcurrent 12 A 415 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated


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 prot 176In Stock
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3120-N Thermal Circuit Breakers Overcurrent Protection 3 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S00 5.5-8A SCREW 9In Stock
Min.: 1
Mult.: 1

3RV2 Circuit Breakers Motor Protection 8 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated


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 1In Stock
Min.: 1
Mult.: 1
482-G Thermal Circuit Breakers 6 A 115 VAC 28 VDC 1 Pole Push-Pull - 55 C + 75 C Non-Illuminated


AIRPAX Circuit Breakers 3In Stock
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 7.5 A 2 Pole Rocker - 40 C + 85 C Non-Illuminated
TE Connectivity / Raychem Circuit Breakers 30AMP 277VAC TOGGLE 2 POLE 16In Stock
144Expected 05/11/2026
Min.: 1
Mult.: 1

W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 30 A 277 VAC 2 Pole Toggle - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers ASM CIRCUIT BREAKER 480V 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers 150 A 480 VAC 250 VDC 3 Pole Non-Illuminated
ABB Circuit Breakers UL489 MCB 3P C 10A 480/277
18In Stock
25Expected 17/09/2026
Min.: 1
Mult.: 1
SU200M Circuit Breakers 10 A 3 Pole
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 64In Stock
100Expected 30/10/2026
Min.: 1
Mult.: 1

2-6500 Circuit Breakers Overcurrent Protection 3 A 250 VAC 28 VDC 1 Pole - 10 C + 60 C Non-Illuminated
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 25In Stock
Min.: 1
Mult.: 1

482 Thermal Circuit Breakers Thermal 35 A 115 VAC 28 VDC 1 Pole Push-Pull - 55 C + 75 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 15A WH 9In Stock
72Expected 12/04/2027
Min.: 1
Mult.: 1

W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 15 A 277 VAC 2 Pole Toggle - 40 C + 85 C Non-Illuminated
ABB Circuit Breakers UL489 MCB 3P Z 40A 480/277
10In Stock
Min.: 1
Mult.: 1
SU200M Circuit Breakers 40 A 3 Pole


E-T-A Circuit Breakers ETA Circuit Breakers 69In Stock
Min.: 1
Mult.: 1

4130 Thermal Circuit Breakers Thermal Magnetic 50 A 240 VAC 50 VDC 1 Pole Push-Pull - 30 C + 60 C Non-Illuminated
Phoenix Contact Circuit Breakers TMC 71B 50A 94In Stock
Min.: 1
Mult.: 1

TMC 7 Circuit Breakers Thermal Magnetic 50 A 277 VAC 60 VDC 1 Pole Lever - 35 C + 70 C Non-Illuminated
Phoenix Contact Circuit Breakers TMC 72C 32A 69In Stock
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Mult.: 1

TMC 7 Circuit Breakers Thermal Magnetic 32 A 277 VAC 125 VDC 2 Pole Lever - 35 C + 70 C Non-Illuminated
Phoenix Contact Circuit Breakers TMC 73C 63A 31In Stock
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Mult.: 1

TMC 7 Circuit Breakers Thermal Magnetic 63 A 277 VAC 3 Pole Lever - 35 C + 70 C Non-Illuminated
Phoenix Contact Circuit Breakers TMC 71D 16A 105In Stock
Min.: 1
Mult.: 1

TMC 7 Circuit Breakers Thermal Magnetic 16 A 277 VAC 60 VDC 1 Pole Lever - 35 C + 70 C Non-Illuminated