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: 162.059
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) 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 MCB ST200M 3P C 13A UL1077
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
5In Stock
165,09 €
136,90 €
119,88 €
109,60 €
Min.: 1
Mult.: 1
ST200M Circuit Breakers 13 A 3 Pole
ABB Circuit Breakers MCB SU200DC 2P K15A UL 5In Stock
136,96 €
113,56 €
105,82 €
87,15 €
80,93 €
Min.: 1
Mult.: 1
ABB Circuit Breakers UL489 MCB 2P K 0.3A 480/277
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
5In Stock
108,82 €
94,09 €
87,15 €
76,87 €
Min.: 1
Mult.: 1
SU200M Circuit Breakers 300 mA 2 Pole
ABB Circuit Breakers MCB SU200ML 2P K 2A UL 489
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
10In Stock
123,93 €
113,23 €
95,75 €
76,87 €
Min.: 1
Mult.: 1
SU200ML Circuit Breakers 2 A 2 Pole
ABB Circuit Breakers UL489 MCB 3P Z 63A 240
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
2In Stock
234,05 €
186,72 €
176,95 €
163,33 €
Min.: 1
Mult.: 1
SU200M Circuit Breakers 63 A 3 Pole
ABB Circuit Breakers MCB SU200MR RTT 3P K 32A BCP
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
5In Stock
193,69 €
160,54 €
138,77 €
122,39 €
Min.: 1
Mult.: 1
SU200MR Circuit Breakers 32 A 3 Pole
ABB Circuit Breakers MCB SUP200M 3P K 30A UL 489 1In Stock
233,42 €
193,47 €
178,34 €
147,39 €
Min.: 1
Mult.: 1
Circuit Breakers Miniature 30 A 400 VAC 3 Pole Handle Non-Illuminated
IDEC Circuit Breakers Circuit Protector 2A
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
1In Stock
52,66 €
45,18 €
42,95 €
39,92 €
Min.: 1
Mult.: 1
NRA Circuit Breakers Magnetic 2 A 250 VAC 65 VDC 2 Pole Lever - 40 C + 85 C Non-Illuminated
IDEC Circuit Breakers Circuit Protector 5In Stock
22,17 €
20,06 €
18,26 €
17,24 €
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C
E-T-A Circuit Breakers Single pole press-to-reset thermal circuit breaker with extremely fast overload switching performance (R-type TO CBE to EN 60934). Miniaturised construction minimises PCB real estate required. Largely temperature-insensitive.x -E. Returning the rocke 33In Stock
15,45 €
10,51 €
8,38 €
7,77 €
Min.: 1
Mult.: 1
1410-L4 Circuit Breakers Thermal 2.5 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 C Non-Illuminated
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 8In Stock
27,87 €
23,13 €
17,60 €
16,15 €
13,88 €
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker
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 Service for verificati 60In Stock
5,86 €
5,51 €
5,31 €
4,14 €
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 15 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


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 8In Stock
108,32 €
89,81 €
74,18 €
71,02 €
68,82 €
Min.: 1
Mult.: 1
8340-G Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 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 296In Stock
6,26 €
5,96 €
5,74 €
4,47 €
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 20 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 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 82In Stock
6,26 €
5,96 €
5,74 €
4,47 €
Min.: 1
Mult.: 1
1658 Thermal Circuit Breakers Overcurrent Protection 7 A 240 VAC 28 VDC 1 Pole Push to Reset - 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 5In Stock
43,02 €
35,68 €
30,23 €
27,52 €
Min.: 1
Mult.: 1
2-6500 Circuit Breakers Overcurrent Protection


E-T-A Circuit Breakers AC PEM, w/ 2 pole , 3A, white rocker, C14 inlet, pre-wired 5In Stock
39,68 €
32,91 €
30,37 €
25,80 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 3 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated Bulk


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
81,93 €
62,51 €
58,67 €
52,89 €
Min.: 1
Mult.: 1
4130 Thermal Circuit Breakers Thermal Magnetic Push-Pull
E-T-A Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 8A 2In Stock
27,14 €
21,93 €
20,88 €
19,38 €
Min.: 1
Mult.: 1
4230-T Miniature Circuit Breakers Thermal Magnetic Toggle


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
62,60 €
51,93 €
48,29 €
40,54 €
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 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 Single and multipole magnetic circuit breakers with trip-free mechanism and toggle a 10In Stock
80,52 €
67,36 €
54,06 €
53,57 €
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 50 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 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
63,18 €
52,42 €
48,74 €
40,92 €
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 40 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 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 9In Stock
25,31 €
21,00 €
17,81 €
16,41 €
Min.: 1
Mult.: 1
3131-A/C Circuit Breakers Thermal 20 A 1 Pole Rocker
E-T-A Circuit Breakers AC PEM, w/ 1 pole , 10A, pushbutton w/ white trip band, C14 inlet, pre-wired 4In Stock
27,99 €
23,23 €
21,43 €
17,75 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 10 A 250 VAC 28 VDC 1 Pole Push to Reset - 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
39,67 €
32,91 €
30,37 €
25,80 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 1 Pole Rocker - 30 C + 60 C Illuminated