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0755-82798135Circuit Breakers
Circuit Breakers
Circuit Breakers are circuit protection devices used to interrupt current during overcurrent, short-circuit or fault conditions. Unlike one-time fuses, many circuit breakers can be reset after the fault is cleared, making them suitable for systems that require repeatable protection, maintenance convenience and reliable electrical safety.
This category includes thermal circuit breakers, magnetic circuit breakers, thermal-magnetic circuit breakers, resettable circuit breakers, panel mount circuit breakers and related overcurrent protection devices. These components are commonly selected based on current rating, voltage rating, trip characteristics, breaking capacity, reset type, mounting method, package style, safety approvals and application requirements.
TomatoElec supplies original Circuit Breakers from recognized manufacturers such as Littelfuse, Eaton, TE Connectivity, Schurter, Phoenix Contact, Schneider Electric, Siemens, Sensata and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Series | Packaging | Product Status | Mounting Type | Breaker Type | Current Rating (Amps) | Voltage Rating - AC | Voltage Rating - DC | Actuator Type | Number of Poles | Illumination | Illumination Voltage (Nominal) | Approval Agency |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
QMB-153-11C3N-3BACIR BRKR THRM 15A 250VAC 32VDC |
3,687 | - |
|
Datasheet |
QMB | Bulk | Active | Panel Mount | Thermal | 15A | 250 V | 32 V | Push to Reset | 1 | - | - | TUV |
|
|
4404.0002CIR BRKR THRM 6A 240VAC 48VDC |
5,218 | - |
|
Datasheet |
T9-611 | Box | Active | Panel Mount | Thermal | 6A | 240 V | 48 V | Push to Reset | 1 | - | - | CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077 |
|
|
4404.0105CIRC BREAKER PCB MNT 15A |
1,094 | 1+:$5.050000 5+:$4.188000 10+:$3.864000 50+:$3.205000 100+:$2.956000 300+:$2.598430 500+:$2.446280 1000+:$2.252890 |
|
Datasheet |
T9-818 | Bulk | Active | Through Hole | Thermal | 15A | 240 V | 48 V | Push to Reset | 1 | - | - | CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077 |
|
|
W57-XB7A4A10-5CIR BRKR THRM 5A 250VAC |
905 | - |
|
Datasheet |
W57 | Tray | Active | Panel Mount | Thermal | 5A | 250 V | - | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-3CIR BRKR THRM 3A 250VAC 32VDC |
39,305 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 3A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W54-XB1A4A10-20CIR BRKR THRM 20A 250VAC |
10,916 | - |
|
Datasheet |
W54 | Tray | Active | Panel Mount | Thermal | 20A | 250 V | - | Push to Reset | 1 | - | - | - |
|
|
W57-XB7A4A10-20CIR BRKR THRM 20A 250VAC |
7,603 | - |
|
Datasheet |
W57 | Tray | Active | Panel Mount | Thermal | 20A | 250 V | - | Push to Reset | 1 | - | - | - |
|
W54-XB1A4A10-30CIR BRKR THRM 30A 250VAC |
4,175 | - |
|
Datasheet |
W54 | Tray | Active | Panel Mount | Thermal | 30A | 250 V | - | Push to Reset | 1 | - | - | - |
|
W51-A121B1-15CIR BRKR THRM 15A 125VAC 50VDC |
18,281 | - |
|
Datasheet |
W51 | Tray | Active | Panel Mount | Thermal | 15A | 125 V | 50 V | Rocker | 1 | Red | - | - |
|
|
W57-XB1A7A10-5CIR BRKR THRM 5A 250VAC |
9,735 | - |
|
Datasheet |
W57 | Tray | Active | Panel Mount | Thermal | 5A | 250 V | - | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-8CIR BRKR THRM 8A 250VAC 32VDC |
2,598 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 8A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-4CIR BRKR THRM 4A 250VAC 32VDC |
2,144 | 1+:$5.860000 5+:$4.858000 10+:$4.483000 50+:$3.718400 100+:$3.429400 300+:$3.014230 500+:$2.837560 1000+:$2.612930 |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 4A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-20CIR BRKR THRM 20A 250VAC 32VDC |
529 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 20A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-15CIR BRKR THRM 15A 250VAC 32VDC |
11,974 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 15A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-5CIR BRKR THRM 5A 250VAC 32VDC |
7,570 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 5A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W28-XQ1A-10CIR BRKR THRM 10A 250VAC 32VDC |
2,097 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 10A | 250 V | 32 V | Push to Reset | 1 | - | - | - |
|
W51-A152A1-10CIR BRKR THRM 10A 250VAC 50VDC |
5,270 | - |
|
Datasheet |
W51 | Tray | Active | Panel Mount | Thermal | 10A | 250 V | 50 V | Rocker | 1 | - | - | - |
|
W51-A152A1-20CIR BRKR THRM 20A 250VAC 50VDC |
3,015 | 1+:$6.980000 5+:$5.790000 10+:$5.342000 50+:$4.430400 200+:$3.766300 400+:$3.470350 600+:$3.307280 1000+:$3.111730 |
|
Datasheet |
W51 | Tray | Active | Panel Mount | Thermal | 20A | 250 V | 50 V | Rocker | 1 | - | - | - |
|
W51-A152A1-15CIR BRKR THRM 15A 250VAC 50VDC |
1,250 | - |
|
Datasheet |
W51 | Tray | Active | Panel Mount | Thermal | 15A | 250 V | 50 V | Rocker | 1 | - | - | - |
|
W28-XQ1A-7CIR BRKR THRM 7A 250VAC 32VDC |
5,309 | - |
|
Datasheet |
W28 | Bulk | Active | Panel Mount | Thermal | 7A | 250 V | 32 V | Push to Reset | 1 | - | - | - |

