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: 151,470
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 Minimum Operating Temperature Maximum Operating Temperature Illuminated Packaging
TE Connectivity / P&B Circuit Breakers 1pole 20Amp Toggle Mag circuit breaker 123In Stock
$105.50
$98.03
$98.02
Min.: 1
Mult.: 1
W6 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 20 A 277 VAC 1 Pole Toggle - 40 C + 85 C Non-Illuminated Tray
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 50A BLK 128In Stock
$109.72
$108.12
$99.10
$91.99
$87.04
Min.: 1
Mult.: 1
W9 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 50 A 65 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 1,909In Stock
$9.90
$9.42
$6.07
$5.06
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


TE Connectivity / P&B Circuit Breakers 10A 2-P Illum Amber P1 & P2 Trip QC 210In Stock
$132.29
$119.91
$115.87
$115.86
Min.: 1
Mult.: 1
W33 Circuit Breakers Thermal 10 A 250 VAC 50 VDC 2 Pole Rocker - 20 C + 60 C Illuminated
TE Connectivity / P&B Circuit Breakers CIRCUIT BREAKER SWITCH 30A BLK 152In Stock
$133.18
$120.75
$120.74
$112.42
$106.64
Min.: 1
Mult.: 1
W9 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 30 A 277 VAC 1 Pole Toggle - 40 C + 85 C Non-Illuminated
TE Connectivity / P&B Circuit Breakers 50A 2 POLE 2 TOGGLE 71In Stock
$210.75
$199.68
$199.66
$186.82
Min.: 1
Mult.: 1
W9 Hydraulic Magnetic Circuit Breakers Hydraulic Magnetic 50 A 277 VAC 2 Pole Toggle - 40 C + 85 C Non-Illuminated
AIRPAX Circuit Breakers Cir Brkr Hyd Mag 1In Stock
$2,411.67
$803.92
Min.: 1
Mult.: 1
No
AP Circuit Breakers Hydraulic Magnetic 20 A 250 VAC 80 VDC 3 Pole Toggle - 40 C + 100 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 1In Stock
$2,381.92
$794.01
Min.: 1
Mult.: 1
No
AP Circuit Breakers 5 A 250 VAC 50 VDC 2 Pole Toggle Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 10In Stock
$1,156.84
$385.66
$335.51
Min.: 1
Mult.: 1
No
AP Circuit Breakers Hydraulic Magnetic 750 mA 240 VAC 50 VDC 1 Pole Toggle - 40 C + 100 C Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 31In Stock
$2,510.83
$2,391.29
Min.: 1
Mult.: 1
No
AP Circuit Breakers 5 A 250 VAC 50 VDC 2 Pole Toggle Non-Illuminated
AIRPAX Circuit Breakers CIRCUIT BREAKER 2In Stock
$1,156.84
$385.66
$335.51
Min.: 1
Mult.: 1
No
AP Circuit Breakers 20 A 250 VAC 50 VDC 1 Pole Toggle Non-Illuminated


E-T-A Circuit Breakers Miniaturised single pole rocker switch/thermal circuit breaker combining ON/OFF switching and extremely fast overload performance in a single component (S-type TO CBE to EN 60934/IEC 934). Under overload conditions an internal neon (f 42In Stock
$39.49
$32.78
$30.23
$23.01
Min.: 1
Mult.: 1
1410-F1 Circuit Breakers Miniature 4 A 240 VAC 28 VDC 1 Pole Rocker - 20 C + 70 C 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
$84.96
$70.49
$58.59
$52.40
Min.: 1
Mult.: 1
3130-F Rocker
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
$84.96
$70.49
$58.59
$52.40
Min.: 1
Mult.: 1
3130-F Circuit Breakers Thermal 15 A 240 VAC, 415 VAC 50 VDC 3 Pole Rocker - 30 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 7In Stock
$59.95
$49.74
$41.02
$36.96
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 16 A 50 VDC 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 18In Stock
$72.75
$60.34
$58.48
$45.63
Min.: 1
Mult.: 1
3120-N Thermal Circuit Breakers Overcurrent Protection 10 A 240 VAC 50 VDC 2 Pole Rocker - 30 C + 60 C Illuminated
E-T-A Circuit Breakers 1077, 1P, DM, 277VAC/65VDC,M1, 1NC AUX, 0.8A 2In Stock
$82.58
$67.20
$64.23
$60.02
Min.: 1
Mult.: 1
2210-T2 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) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings 43In Stock
$30.86
$28.08
$25.74
$19.50
Min.: 1
Mult.: 1
Thermal Circuit Breakers Overcurrent Protection 6 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. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 3In Stock
50Expected 20/11/2026
$30.97
$24.58
$22.44
$20.10
$16.62
Min.: 1
Mult.: 1
106-M2 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), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 13In Stock
$30.97
$24.58
$22.44
$18.92
Min.: 1
Mult.: 1
106-M2 Thermal Circuit Breakers Overcurrent Protection 600 mA 240 VAC 48 VDC 1 Pole Push to Reset - 20 C + 60 C Non-Illuminated
E-T-A Circuit Breakers 1077, 1P, PL, 277VAC/65VDC, F2, aux contacts, N/O N/C, 8A 5In Stock
$105.39
$90.02
$86.62
$83.46
Min.: 1
Mult.: 1
2210-S2 Thermal Circuit Breakers Thermal Magnetic Toggle
E-T-A Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-T210-K0F2-H131-3A 93 1In Stock
$152.88
$117.69
$103.58
$99.33
Min.: 1
Mult.: 1
2210-T2 Thermal Circuit Breakers Thermal Magnetic 3 A 250 VAC, 433 VAC 65 VDC 1 Pole Toggle - 30 C + 60 C Non-Illuminated
E-T-A Circuit Breakers Min Ord Qty 10. 1077, 1P, Plug, 240VAC / 50VDC, M1, 12A 9In Stock
$69.60
$57.75
$47.84
$43.00
Min.: 1
Mult.: 1
2216-S1
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 5In Stock
10Expected 8/1/2027
$60.82
$50.44
$47.41
$40.00
Min.: 1
Mult.: 1
3130-F Circuit Breakers Thermal 10 A 240 VAC, 415 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C 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 6In Stock
$60.78
$50.42
$43.08
$40.23
Min.: 1
Mult.: 1
3130-F Thermal Overcurrent 10 A 240 VAC 50 VDC 1 Pole Rocker - 30 C + 60 C Illuminated