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: 151.470
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
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 45In Stock
16,17 €
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 3 A 1 Pole Push to Reset - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 23In Stock
42,68 €
Min.: 1
Mult.: 1
Snapak Thermal Circuit Breakers Thermal 10 A 2 Pole Push to Reset
Siemens Circuit Breakers MSP S00 0.9-1.25A AUX 1NO 1NC SCREW 3In Stock
286,15 €
231,45 €
216,90 €
206,18 €
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 1.25 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S00 11-16A SPRING 3In Stock
256,56 €
232,07 €
213,96 €
190,05 €
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 16 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S0 0.9 - 1.25A SCREW 4In Stock
245,71 €
203,67 €
187,73 €
162,93 €
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 1.25 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers MSP S2 CLASS 10 32-40A SCREW 3In Stock
504,83 €
419,49 €
386,49 €
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 40 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
Siemens Circuit Breakers CIRCUIT-BREAKER S0 25A NO OVERLOAD 3In Stock
337,31 €
318,53 €
266,77 €
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Starter Combination 25 A 690 VAC 3 Pole Rotary - 20 C + 60 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers 5A 1POLE HYD MAGNTC 137In Stock
58,61 €
54,30 €
53,32 €
51,75 €
50,27 €
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 5 A 277 VAC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
IDEC Circuit Breakers Circuit Protector 30A
Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK
3In Stock
27,89 €
22,97 €
21,75 €
20,27 €
Min.: 1
Mult.: 1
NRA Circuit Breakers Magnetic 30 A 250 VAC 65 VDC 1 Pole Lever - 40 C + 85 C Non-Illuminated
IDEC Circuit Breakers Circuit Breaker 1In Stock
41,94 €
34,79 €
32,10 €
27,27 €
Min.: 1
Mult.: 1
NRB Circuit Breakers 7.5 A 250 VAC 65 VDC 1 Pole Lever - 40 C + 85 C Non-Illuminated


IDEC Circuit Breakers Circuit Protector 34In Stock
16,89 €
16,61 €
13,10 €
12,26 €
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C
IDEC Circuit Breakers PCB MOUNT C.B. 1In Stock
14Expected 10/30/2026
11,14 €
10,58 €
10,24 €
7,88 €
Min.: 1
Mult.: 1
NRP Circuit Breakers Thermal 2 A 250 VAC 32 VDC 1 Pole Push to Reset - 10 C + 50 C Non-Illuminated
E-T-A Circuit Breakers Single or multipole hydraulic-magnetic circuit breakers with trip-free-mechanism and toggle actuation. A choice of switching characteristics ensures suitability for a wide range of applications. Industry standard dimensions and panel 2In Stock
291,27 €
241,42 €
217,43 €
200,06 €
Min.: 1
Mult.: 1
8345 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 60 A 240 VAC, 415 VAC 80 VDC 3 Pole Toggle - 40 C + 85 C Non-Illuminated


E-T-A Circuit Breakers AC PEM, w/ 1 pole , 5A, pushbutton w/ white trip band, C14 inlet, pre-wired 9In Stock
28,00 €
23,23 €
21,43 €
17,75 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 5 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated Bulk
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
156,18 €
118,57 €
100,43 €
Min.: 1
Mult.: 1
482 Thermal Circuit Breakers Thermal 10 A 125 VAC 28 VDC 1 Pole Push-Pull - 55 C + 75 C Non-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 protection of motors 7In Stock
55,33 €
47,54 €
40,40 €
35,04 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection Rocker
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 protection of motors 9In Stock
52,98 €
43,95 €
39,44 €
35,45 €
31,55 €
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker


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 5In Stock
81,93 €
68,54 €
58,67 €
52,89 €
Min.: 1
Mult.: 1
4130 Thermal Circuit Breakers Thermal Magnetic Push-Pull
E-T-A Circuit Breakers Single pole 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 position. Thr 1In Stock
4Expected 2/24/2027
137,75 €
104,59 €
88,58 €
Min.: 1
Mult.: 1
413 Thermal Circuit Breakers Thermal Magnetic Push-Pull
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 protection of motors 3In Stock
38,27 €
31,75 €
27,13 €
25,34 €
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 6 A 240 VAC 50 VDC 2 Pole Rocker - 30 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 7In Stock
96,70 €
80,19 €
66,22 €
63,40 €
61,43 €
Min.: 1
Mult.: 1
8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 10 A 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ recessed 1 pole , 5A, pb w/ white trip band, C14 inlet, pre-wired 5In Stock
27,85 €
23,10 €
21,31 €
17,66 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 5 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers MoQ=10 1077, 1p, DIN, 80VDC Med Delay, 8A 5In Stock
61,06 €
50,65 €
46,93 €
42,66 €
Min.: 1
Mult.: 1
8340-T Hydraulic Magnetic Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 15A, black rocker, C20 inlet, pre-wired 6In Stock
39,67 €
32,91 €
30,37 €
25,80 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 15 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 6A, white rocker, C14 std filtered inlet, pre-wired 8In Stock
58,29 €
48,36 €
44,61 €
36,92 €
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 6 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated