Circuit Breakers

Manufacturer 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

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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
W57-XB2A99C10-10

W57-XB2A99C10-10

CIR BRKR THRM 10A 250VAC

TE Connectivity Potter & Brumfield Relays

510 -
RFQ
W57-XB2A99C10-10

Datasheet

W57 Tray Active Panel Mount Thermal 10A 250 V - Push to Reset 1 - - -
3-101-229

3-101-229

CIR BRKR THRM 12A 240VAC 48VDC

SCHURTER Inc.

1,216 -
RFQ
3-101-229

Datasheet

T9-817 Box Active Through Hole Thermal 12A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
1423674-5

1423674-5

CKTBKR,THERM,PB

TE Connectivity Potter & Brumfield Relays

867 -
RFQ
1423674-5

Datasheet

W54 Tray Active Panel Mount Thermal 8A 250 V - Push to Reset 1 None - -
CTB-B-B-10

CTB-B-B-10

CIR BRKR THRM 10A 250VAC 50VDC

Carling Technologies

283 -
RFQ
CTB-B-B-10

Datasheet

CTB Bulk Active Panel Mount Thermal 10A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
QLB-103-11B3N-3BA

QLB-103-11B3N-3BA

CIR BRKR THRM 10A 250VAC 32VDC

Qualtek

450 -
RFQ
QLB-103-11B3N-3BA

Datasheet

QLB Bulk Active Panel Mount Thermal 10A 250 V 32 V Push to Reset 1 - - -
QLB-253-00DNN-3BA

QLB-253-00DNN-3BA

CIR BRKR THRM 25A 250VAC 32VDC

Qualtek

540 -
RFQ
QLB-253-00DNN-3BA

Datasheet

QLB Bulk Active Panel Mount Thermal 25A 250 V 32 V Push to Reset 1 - - -
4404.0096

4404.0096

CIRC BREAKER PCB MNT 3A

SCHURTER Inc.

1,574 -
RFQ
4404.0096

Datasheet

T9-818 Bulk Active Through Hole Thermal 3A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
W57-XB2A99C10-5

W57-XB2A99C10-5

CIR BRKR THRM 5A 250VAC

TE Connectivity Potter & Brumfield Relays

657 -
RFQ
W57-XB2A99C10-5

Datasheet

W57 Tray Active Panel Mount Thermal 5A 250 V - Push to Reset 1 - - -
4404.0049

4404.0049

CBE T9-311C-3

SCHURTER Inc.

279 -
RFQ
4404.0049

Datasheet

T9-311 Bulk Active Panel Mount Thermal 3A 240 V 48 V Push to Reset 1 - - -
W57-XB1A4A10-5

W57-XB1A4A10-5

CIR BRKR THRM 5A 250VAC

TE Connectivity Potter & Brumfield Relays

800 -
RFQ
W57-XB1A4A10-5

Datasheet

W57 Tray Active Panel Mount Thermal 5A 250 V - Push to Reset 1 - - -
CTB-B-B-12

CTB-B-B-12

CIR BRKR THRM 12A 250VAC 50VDC

Carling Technologies

267 -
RFQ
CTB-B-B-12

Datasheet

CTB Bulk Active Panel Mount Thermal 12A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
W54-XA1C4A10-30

W54-XA1C4A10-30

CIR BRKR THRM 30A 250VAC

TE Connectivity Potter & Brumfield Relays

949 -
RFQ
W54-XA1C4A10-30

Datasheet

W54 Tray Active Panel Mount Thermal 30A 250 V - Push to Reset 1 - - -
W51-A121B1-6

W51-A121B1-6

CIR BRKR THRM 6A 125VAC 50VDC

TE Connectivity Potter & Brumfield Relays

933 -
RFQ
W51-A121B1-6

Datasheet

W51 Tray Active Panel Mount Thermal 6A 125 V 50 V Rocker 1 Red - -
W28-XQ1A-13

W28-XQ1A-13

CIR BRKR THRM 13A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

549 -
RFQ
W28-XQ1A-13

Datasheet

W28 Bulk Active Panel Mount Thermal 13A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-6

W28-XT1A-6

CIR BRKR THRM 6A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

455 -
RFQ
W28-XT1A-6

Datasheet

W28 Bulk Active Panel Mount Thermal 6A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-12

W28-XT1A-12

CIR BRKR THRM 12A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

296 -
RFQ
W28-XT1A-12

Datasheet

W28 Bulk Active Panel Mount Thermal 12A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-5

W28-XT1A-5

CIR BRKR THRM 5A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

104 -
RFQ
W28-XT1A-5

Datasheet

W28 Bulk Active Panel Mount Thermal 5A 250 V 32 V Push to Reset 1 - - -
W28-XQ1A-14

W28-XQ1A-14

CIR BRKR THRM 14A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

566 -
RFQ
W28-XQ1A-14

Datasheet

W28 Bulk Active Panel Mount Thermal 14A 250 V 32 V Push to Reset 1 - - -
W51-A151A1-5

W51-A151A1-5

CIR BRKR THRM 5A 250VAC 50VDC

TE Connectivity Potter & Brumfield Relays

1,975 -
RFQ
W51-A151A1-5

Datasheet

W51 Tray Active Panel Mount Thermal 5A 125 V 50 V Rocker 1 - - -
1658-G21-02-P10-6A

1658-G21-02-P10-6A

CIR BRKR THRM 6A 240VAC 28VDC

E-T-A

225 -
RFQ
1658-G21-02-P10-6A

Datasheet

1658 Bulk Active Panel Mount Thermal 6A 240 V 28 V Push to Reset 1 None - CE, CSA C22.2 No 235, IEC 60934, UL1077
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