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: 151,463
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) 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
E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 36In Stock
Min.: 1
Mult.: 1

2-5700 Thermal Circuit Breakers Overcurrent Protection 20 A 250 VAC 28 VDC 1 Pole Push to Reset - 20 C + 60 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 pro 35In Stock
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 5 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Single pole thermal-magnetic circuit breakers with tease-free, trip-free, press-to-reset, snap action mechanism (R-type TM CBE to EN 60934; M-type with manual release (-H). Available with fast acting and standard magnetic tripping cha 17In Stock
Min.: 1
Mult.: 1

3400 Thermal Circuit Breakers Thermal Magnetic 15 A 240 VAC 65 VDC 1 Pole Push to Reset - 30 C + 60 C Non-Illuminated
Phoenix Contact Circuit Breakers TMC 2 M1 120 4.0A 4In Stock
Min.: 1
Mult.: 1

Circuit Breakers Thermal Magnetic 4 A 250 VAC 65 VDC 2 Pole Lever - 30 C + 60 C Non-Illuminated
Phoenix Contact Circuit Breakers HMC11 50DC 20A C1D2 7In Stock
Min.: 1
Mult.: 1

HMC Circuit Breakers Hydraulic Magnetic 20 A 50 VDC 4 Pole Toggle - 40 C + 65 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 4In Stock
Min.: 1
Mult.: 1

IEG Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic Handle
TE Connectivity / P&B Circuit Breakers 5A 1POLE HYD MAGNTC 137In Stock
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 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 7In 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
Phoenix Contact Circuit Breakers TMC 82D 16A 13In Stock
19Expected 11/9/2026
Min.: 1
Mult.: 1

TMC 8 Circuit Breakers Thermal Magnetic 16 A 240 VAC 125 VDC 2 Pole Lever - 35 C + 70 C Non-Illuminated
Sensata Technologies Circuit Breakers 1In Stock
Min.: 1
Mult.: 1
Thermal Circuit Breakers Thermal 1 A 2 Pole Rocker - 40 C + 85 C Non-Illuminated