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.
More...


Please view our large selection of circuit breakers below.

Results: 151.450
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 Type Minimum Operating Temperature Maximum Operating Temperature Illuminated Packaging
ABB Circuit Breakers MCB S800 1P K 50A 5In Stock
Min.: 1
Mult.: 1
Circuit Breakers 50 A 1 Pole
ABB Circuit Breakers MCB ST200M 1P B 30A UL1077
5In Stock
Min.: 1
Mult.: 1
ST200M Circuit Breakers 30 A 1 Pole
ABB Circuit Breakers MCB ST200M 2P D 40A UL1077
3In Stock
2Expected 11/27/2026
Min.: 1
Mult.: 1
ST200M Circuit Breakers 40 A 2 Pole
ABB Circuit Breakers UL489 MCB 1P Z 50A 240
10In Stock
Min.: 1
Mult.: 1
SU200M Circuit Breakers 50 A 1 Pole
ABB Circuit Breakers MCB SU200ML 2P K 13A UL 489
3In Stock
Min.: 1
Mult.: 1
SU200ML Circuit Breakers 13 A 2 Pole
ABB Circuit Breakers UL489 MCB 3P C 2A 480/277
7In Stock
Min.: 1
Mult.: 1
SU200M Circuit Breakers 2 A 3 Pole
ABB Circuit Breakers MCB SU200MR RTT 3P K 60A BCP
3In Stock
Min.: 1
Mult.: 1
SU200MR Circuit Breakers 60 A 3 Pole
ABB Circuit Breakers MCB SUP200M 2P K 40A UL 489 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 40 A 240 VAC 2 Pole Handle Non-Illuminated
Square D Circuit Breakers MINIATURE CIRCUIT BREAKER 600V 15A 1In Stock
Min.: 1
Mult.: 1
IDEC Circuit Breakers Circuit Protector 7.5A 1In Stock
Min.: 1
Mult.: 1
NRB Circuit Breakers 7.5 A 250 VAC 65 VDC 2 Pole Lever - 40 C + 85 C Non-Illuminated


IDEC Circuit Breakers Circuit Protector 1In Stock
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C


E-T-A Circuit Breakers Inactive Part (Build to Order) - Alternative Stocked Part Number 2210-T220-K0M1-H131-8A 5In Stock
Min.: 1
Mult.: 1
2210-T2 Thermal Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 1.5A 3In Stock
Min.: 1
Mult.: 1

4230-T Miniature Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 12A 4In Stock
Min.: 1
Mult.: 1

4230-T Miniature Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 35A 6In Stock
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
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 20 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 5In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 15 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 8In Stock
Min.: 1
Mult.: 1

8340-F Hydraulic Magnetic Circuit Breakers Thermal Magnetic 1 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 37In Stock
Min.: 1
Mult.: 1

1658 Thermal Circuit Breakers Overcurrent Protection 10 A 240 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers AC PEM, w/ recessed 1 pole , 10A, pb w/ white trip band, C14 inlet, pre-wired 10In Stock
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 MoQ=10 1077, 1p, DIN, 80VDC Med Delay, 15A 8In Stock
Min.: 1
Mult.: 1

8340-T Hydraulic Magnetic Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers AC PEM, w/ 2 pole , 5A, black rocker, C14 inlet, pre-wired 2In Stock
Min.: 1
Mult.: 1

Thermal Circuit Breakers Overcurrent Protection 5 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ-NA UL 489 MCB 1P 4A B CURVE 1In Stock
Min.: 1
Mult.: 1
FAZ Circuit Breakers Miniature 4 A 240 VAC 1 Pole Handle - 40 C + 75 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ-NA UL 489 MCB 240VAC 1P 4A B CURVE 1In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 4 A 240 VAC 1 Pole Handle - 40 C + 75 C Non-Illuminated
Eaton Electrical Circuit Breakers FAZ-NA 240VAC 2P 4A D CURVE ring term 2In Stock
Min.: 1
Mult.: 1
Circuit Breakers Miniature 4 A 240 VAC, 415 VAC 2 Pole Handle - 40 C + 75 C Non-Illuminated