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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
KBUH2C30Circ Brkr-UL489, 30A, 2P, C |
2,433 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 30A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH1D15Circ Brkr-UL489, 15A, 1P, D |
7,409 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 15A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH1D10Circ Brkr-UL489, 10A, 1P, D |
3,744 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 10A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH3D30Circ Brkr-UL489, 30A, 3P, D |
2,493 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 30A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH1D30Circ Brkr-UL489, 30A, 1P, D |
7,236 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 30A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN2D40Circ Brkr-UL489, 40A, 2P, D |
2,702 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 40A | 240 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH3D20Circ Brkr-UL489, 20A, 3P, D |
5,799 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 20A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH3D15Circ Brkr-UL489, 15A, 3P, D |
2,893 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 15A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH1C20Circ Brkr-UL489, 20A, 1P, C |
3,068 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 20A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH2C25Circ Brkr-UL489, 25A, 2P, C |
4,662 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 25A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUN2D50Circ Brkr-UL489, 50A, 2P, D |
4,107 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 50A | 240 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH2D15Circ Brkr-UL489, 15A, 2P, D |
4,551 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 15A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH1C06Circ Brkr-UL489, 6A, 1P, C |
8,432 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 6A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH1C25Circ Brkr-UL489, 25A, 1P, C |
2,508 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 25A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH2D10Circ Brkr-UL489, 10A, 2P, D |
9,244 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 10A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUN1C60Circ Brkr-UL489, 60A, 1P, C |
4,698 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 60A | 240 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN1C50Circ Brkr-UL489, 50A, 1P, C |
9,759 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 50A | 240 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH1D20Circ Brkr-UL489, 20A, 1P, D |
8,701 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 20A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN1C40Circ Brkr-UL489, 40A, 1P, C |
4,230 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 40A | 240 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH3C15Circ Brkr-UL489, 15A, 3P, C |
9,046 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 15A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |

