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-XB1A7A10-20

W57-XB1A7A10-20

CIR BRKR THRM 20A 250VAC

TE Connectivity Potter & Brumfield Relays

1,067 -
RFQ
W57-XB1A7A10-20

Datasheet

W57 Tray Active Panel Mount Thermal 20A 250 V - Push to Reset 1 - - -
W57-XB7A4A10-8

W57-XB7A4A10-8

CIR BRKR THRM 8A 250VAC

TE Connectivity Potter & Brumfield Relays

491 -
RFQ
W57-XB7A4A10-8

Datasheet

W57 Tray Active Panel Mount Thermal 8A 250 V - Push to Reset 1 - - -
W57-XB7A4A10-10

W57-XB7A4A10-10

CIR BRKR THRM 10A 250VAC

TE Connectivity Potter & Brumfield Relays

3,685 -
RFQ
W57-XB7A4A10-10

Datasheet

W57 Tray Active Panel Mount Thermal 10A 250 V - Push to Reset 1 - - -
W28-XQ1A-16

W28-XQ1A-16

CIR BRKR THRM 16A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

5,781 -
RFQ
W28-XQ1A-16

Datasheet

W28 Bulk Active Panel Mount Thermal 16A 250 V 32 V Push to Reset 1 - - -
QLB-303-11B3N-3BA

QLB-303-11B3N-3BA

CIR BRKR THRM 30A 250VAC 32VDC

Qualtek

2,999 -
RFQ
QLB-303-11B3N-3BA

Datasheet

QLB Bulk Active Panel Mount Thermal 30A 250 V 32 V Push to Reset 1 - - -
CTB-B-B-05

CTB-B-B-05

CIR BRKR THRM 5A 250VAC 50VDC

Carling Technologies

757 -
RFQ
CTB-B-B-05

Datasheet

CTB Bulk Active Panel Mount Thermal 5A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
CTB-B-B-15

CTB-B-B-15

CIR BRKR THRM 15A 250VAC 50VDC

Carling Technologies

446 -
RFQ
CTB-B-B-15

Datasheet

CTB Bulk Active Panel Mount Thermal 15A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
CTB-B-B-04

CTB-B-B-04

CIR BRKR THRM 4A 250VAC 50VDC

Carling Technologies

212 -
RFQ
CTB-B-B-04

Datasheet

CTB Bulk Active Panel Mount Thermal 4A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
CTB-B-B-03

CTB-B-B-03

CIR BRKR THRM 3A 250VAC 50VDC

Carling Technologies

144 -
RFQ
CTB-B-B-03

Datasheet

CTB Bulk Active Panel Mount Thermal 3A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
CMB-103-27G3N-B-A

CMB-103-27G3N-B-A

CIR BRKR THRM 10A 250VAC 32VDC

Carling Technologies

218 -
RFQ
CMB-103-27G3N-B-A

Datasheet

CMB Box Active Panel Mount Thermal 10A 250 V 32 V Push to Reset 1 None - CE, cUL, TUV, UL1077, UL1500
W57-XB1A4A10-20

W57-XB1A4A10-20

CIR BRKR THRM 20A 250VAC

TE Connectivity Potter & Brumfield Relays

536 -
RFQ
W57-XB1A4A10-20

Datasheet

W57 Tray Active Panel Mount Thermal 20A 250 V - Push to Reset 1 - - -
CLB-153-11A3N-B-A

CLB-153-11A3N-B-A

CIR BRKR THRM 15A 250VAC 32VDC

Carling Technologies

118 -
RFQ
CLB-153-11A3N-B-A

Datasheet

CLB Box Active Panel Mount Thermal 15A 250 V 32 V Push to Reset 1 None - CE, cUL, TUV, UL1077, UL1500
W28-XT1A-15

W28-XT1A-15

CIR BRKR THRM 15A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

5,209 -
RFQ
W28-XT1A-15

Datasheet

W28 Bulk Active Panel Mount Thermal 15A 250 V 32 V Push to Reset 1 - - -
W54-XB1A4A10-15

W54-XB1A4A10-15

CIR BRKR THRM 15A 250VAC

TE Connectivity Potter & Brumfield Relays

1,313 -
RFQ
W54-XB1A4A10-15

Datasheet

W54 Tray Active Panel Mount Thermal 15A 250 V - Push to Reset 1 - - -
1658-G21-01-P10-15A

1658-G21-01-P10-15A

CIR BRKR THRM 15A 240VAC 28VDC

E-T-A

796 -
RFQ
1658-G21-01-P10-15A

Datasheet

1658 Bulk Active Panel Mount Thermal 15A 240 V 28 V Push to Reset 1 None - CE, CSA C22.2 No 235, IEC 60934, UL1077
W28-XQ1A-6

W28-XQ1A-6

CIR BRKR THRM 6A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

1,457 -
RFQ
W28-XQ1A-6

Datasheet

W28 Bulk Active Panel Mount Thermal 6A 250 V 32 V Push to Reset 1 - - -
W54-XB1A4A10-5

W54-XB1A4A10-5

CIR BRKR THRM 5A 250VAC

TE Connectivity Potter & Brumfield Relays

1,008 -
RFQ
W54-XB1A4A10-5

Datasheet

W54 Tray Active Panel Mount Thermal 5A 250 V - Push to Reset 1 - - -
W57-XB1A4A10-10

W57-XB1A4A10-10

CIR BRKR THRM 10A 250VAC

TE Connectivity Potter & Brumfield Relays

826 -
RFQ
W57-XB1A4A10-10

Datasheet

W57 Bulk Active Panel Mount Thermal 10A 250 V - Push to Reset 1 - - -
1658-G21-01-P10-7A

1658-G21-01-P10-7A

CIR BRKR THRM 7A 240VAC 28VDC

E-T-A

148 -
RFQ
1658-G21-01-P10-7A

Datasheet

1658 Bulk Active Panel Mount Thermal 7A 240 V 28 V Push to Reset 1 None - CE, CSA C22.2 No 235, IEC 60934, UL1077
W28-XT1A-10

W28-XT1A-10

CIR BRKR THRM 10A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

1,356 -
RFQ
W28-XT1A-10

Datasheet

W28 Bulk Active Panel Mount Thermal 10A 250 V 32 V Push to Reset 1 - - -
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