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 (USD) 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
Siemens Circuit Breakers CIRCUIT BREAKER. SCREW-TYPE. 14 A 2In Stock
$737.31
$635.87
$620.94
Min.: 1
Mult.: 1
3RV2 Circuit Breakers Motor Protection 14 A 690 VAC 3 Pole Rotary - 50 C + 60 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA11 1P 80A 25KA FTFM BOX 1In Stock
$337.83
$294.49
$284.92
Min.: 1
Mult.: 1
3VA Circuit Breakers Line Protection 80 A 415 VAC 125 VDC 1 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers BRKR 3VA51 3P 100A 25KA ATAM 1In Stock
$915.32
Min.: 1
Mult.: 1
3VA Thermal Magnetic Circuit Breakers System Protection 100 A 690 VAC 500 VDC 3 Pole Paddle - 25 C + 70 C Non-Illuminated
Siemens Circuit Breakers MCB 5SJ4 1P 240V 6A SAME PH 14K B-TRIP 6In Stock
$81.32
$64.70
$59.96
$57.99
Min.: 1
Mult.: 1
Circuit Breakers Miniature 6 A 240 VAC 60 VDC 1 Pole Lever - 25 C + 55 C Non-Illuminated
Siemens Circuit Breakers SUP PTOR 5SY6 3P 480V 0.1A 5K C-TRIP 3In Stock
$228.80
$164.60
$150.31
$147.45
Min.: 1
Mult.: 1
Siemens Circuit Breakers DOOR,15"x18" 1In Stock
$390.93
$376.81
Min.: 1
Mult.: 1
Siemens Circuit Breakers BREAKER 15A 1P 120240V 10K HID BL 1In Stock
$231.43
$209.21
$194.07
$177.94
Min.: 1
Mult.: 1


IDEC Circuit Breakers 8A CIRCUIT PROTECTOR 9In Stock
$16.11
$12.72
$11.93
$10.98
Min.: 1
Mult.: 1
NRF Circuit Breakers 250 VAC 32 VDC 1 Pole - 10 C + 60 C


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 2In Stock
$61.12
$45.18
$42.01
$37.76
Min.: 1
Mult.: 1
3130-F Circuit Breakers Thermal 10 A 240 VAC, 415 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Circuit BreakerS 39In Stock
$22.68
$20.64
$18.92
$14.34
Min.: 1
Mult.: 1
104 Thermal Circuit Breakers Overcurrent Protection 100 mA 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings 29In Stock
$22.68
$20.64
$18.92
$13.84
Min.: 1
Mult.: 1
104 Thermal Circuit Breakers Overcurrent Protection 800 mA 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings 16In Stock
$22.69
$20.65
$18.93
$14.34
Min.: 1
Mult.: 1
104 Thermal Circuit Breakers Overcurrent Protection 1 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings 20In Stock
$22.68
$20.64
$18.92
$14.34
Min.: 1
Mult.: 1
104 Thermal Circuit Breakers Overcurrent Protection 4 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) snap-in type. Manual release facility optional. Approved to CBE standard EN 60934 (IEC 60934 8In Stock
$29.09
$24.13
$22.26
$17.38
Min.: 1
Mult.: 1
105 Thermal Circuit Breakers Overcurrent Protection 1 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) snap-in type. Manual release facility optional. Approved to CBE standard EN 60934 (IEC 60934 12In Stock
$29.10
$24.14
$22.27
$16.97
Min.: 1
Mult.: 1
105 Thermal Circuit Breakers Overcurrent Protection 5 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated


E-T-A Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S211-P1M1-Z141-4A 92 3In Stock
$246.97
$176.39
$171.36
$169.64
Min.: 1
Mult.: 1
2210-S2 Thermal Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), snap-in panel mounting. For lower current ratings see type 105. Approved to CBE standard EN 53In Stock
$23.60
$21.48
$19.69
$16.99
Min.: 1
Mult.: 1
1140 Miniature Circuit Breakers Overcurrent Protection 10 A 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease-free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), threadneck mounting. For lower current ratings see types 106. Approved to CBE standard E 50In Stock
$25.17
$23.23
$21.77
$21.14
Min.: 1
Mult.: 1
1140 Miniature Circuit Breakers Overcurrent Protection 16 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 9In Stock
$63.73
$54.84
$43.97
$39.32
$37.97
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 15 A 415 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated


E-T-A Circuit Breakers Single pole thermal circuit breaker with push-to-reset, tease-free, trip-free, snap action mechanism and separate manual release (M-type TO CBE to EN 60934). Designed for bolt-on mounting with terminal block type 83-P10. 9In Stock
$48.59
$40.31
$32.66
$28.68
$27.94
Min.: 1
Mult.: 1
129 Thermal Circuit Breakers Automotive 30 A 250 VAC 28 VDC 1 Pole Push to Reset - 40 C + 75 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 8In Stock
$69.18
$59.50
$47.71
$42.66
$41.19
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 16 A 415 VAC 50 VDC 3 Pole Rocker - 30 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 prot 6In Stock
$32.92
$27.32
$22.28
$21.10
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection Rocker


E-T-A Circuit Breakers Single and two 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 (S type MO or HM CBE to EN 60934) ensures 6In Stock
$155.81
$129.20
$120.39
$99.15
$92.06
Min.: 1
Mult.: 1
8340-G Hydraulic Magnetic Circuit Breakers Thermal Magnetic 240 VAC, 415 VAC 80 VDC 1 Pole Toggle - 40 C + 85 C


E-T-A Circuit Breakers Miniaturised single pole thermal-magnetic circuit breakers with trip-free mechanism and toggle actuation (S-type TM CBE to EN 60934). Two designs provide the option of either printed circuit board or threadneck panel mounting. A separ 10In Stock
$102.41
$85.67
$81.15
$63.79
Min.: 1
Mult.: 1
2215 Thermal Circuit Breakers Thermal Magnetic Toggle


E-T-A Circuit Breakers 1077, 2P, PL, 277VAC/65VDC, M1, 1NC AUX INT and ON, 2A 3In Stock
$97.51
$79.75
$75.98
$71.09
Min.: 1
Mult.: 1
2210-S2 Thermal Circuit Breakers Thermal Magnetic Toggle