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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
KBUH3D06Circ Brkr-UL489, 6A, 3P, D |
6,539 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 6A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUN1D50Circ Brkr-UL489, 50A, 1P, D |
3,559 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 50A | 240 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN2C50Circ Brkr-UL489, 50A, 2P, C |
4,178 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 50A | 240 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUN3D40Circ Brkr-UL489, 40A, 3P, D |
8,214 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 40A | 240 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH3D10Circ Brkr-UL489, 10A, 3P, D |
2,536 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 10A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUN3C40Circ Brkr-UL489, 40A, 3P, C |
2,037 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 40A | 240 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH3C20Circ Brkr-UL489, 20A, 3P, C |
8,580 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 20A | 277 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUN3C60Circ Brkr-UL489, 60A, 3P, C |
2,788 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 60A | 240 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH2D06Circ Brkr-UL489, 6A, 2P, D |
2,202 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 6A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH2C20Circ Brkr-UL489, 20A, 2P, C |
8,647 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 20A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH2C10Circ Brkr-UL489, 10A, 2P, C |
2,629 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 10A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH1C10Circ Brkr-UL489, 10A, 1P, C |
9,205 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 10A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN2D60Circ Brkr-UL489, 60A, 2P, D |
4,137 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 60A | 240 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH1C30Circ Brkr-UL489, 30A, 1P, C |
7,072 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 30A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN1D40Circ Brkr-UL489, 40A, 1P, D |
4,950 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 40A | 240 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUN3C50Circ Brkr-UL489, 50A, 3P, C |
9,534 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 50A | 240 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUN3D60Circ Brkr-UL489, 60A, 3P, D |
6,819 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 60A | 240 V | - | Lever | 3 | None | - | CE, CSA, UL489 |
|
KBUH1D06Circ Brkr-UL489, 6A, 1P, D |
3,496 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 6A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |
|
KBUH2D30Circ Brkr-UL489, 30A, 2P, D |
3,021 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 30A | 277 V | - | Lever | 2 | None | - | CE, CSA, UL489 |
|
KBUH1D25Circ Brkr-UL489, 25A, 1P, D |
2,617 | - |
|
Datasheet |
KBUD | Retail Package | Active | DIN Rail | Thermal | 25A | 277 V | - | Lever | 1 | None | - | CE, CSA, UL489 |

