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Circuit Breakers

Browse available Circuit Breakers part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.

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Datasheets & Specifications Access technical references quickly
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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 TE Connectivity Potter & Brumfield Relays

W57-XB2A99C10-10

CIR BRKR THRM 10A 250VAC

TE Connectivity Potter & Brumfield Relays

510 -
Datasheet W57 Tray Active Panel Mount Thermal 10A 250 V - Push to Reset 1 - - -
3-101-229 SCHURTER Inc.

3-101-229

CIR BRKR THRM 12A 240VAC 48VDC

SCHURTER Inc.

1,216 -
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 TE Connectivity Potter & Brumfield Relays

1423674-5

CKTBKR,THERM,PB

TE Connectivity Potter & Brumfield Relays

867 -
Datasheet W54 Tray Active Panel Mount Thermal 8A 250 V - Push to Reset 1 None - -
CTB-B-B-10 Carling Technologies

CTB-B-B-10

CIR BRKR THRM 10A 250VAC 50VDC

Carling Technologies

283 -
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 Qualtek

QLB-103-11B3N-3BA

CIR BRKR THRM 10A 250VAC 32VDC

Qualtek

450 -
Datasheet QLB Bulk Active Panel Mount Thermal 10A 250 V 32 V Push to Reset 1 - - -
QLB-253-00DNN-3BA Qualtek

QLB-253-00DNN-3BA

CIR BRKR THRM 25A 250VAC 32VDC

Qualtek

540 -
Datasheet QLB Bulk Active Panel Mount Thermal 25A 250 V 32 V Push to Reset 1 - - -
4404.0096 SCHURTER Inc.

4404.0096

CIRC BREAKER PCB MNT 3A

SCHURTER Inc.

1,574 -
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 TE Connectivity Potter & Brumfield Relays

W57-XB2A99C10-5

CIR BRKR THRM 5A 250VAC

TE Connectivity Potter & Brumfield Relays

657 -
Datasheet W57 Tray Active Panel Mount Thermal 5A 250 V - Push to Reset 1 - - -
4404.0049 SCHURTER Inc.

4404.0049

CBE T9-311C-3

SCHURTER Inc.

279 -
Datasheet T9-311 Bulk Active Panel Mount Thermal 3A 240 V 48 V Push to Reset 1 - - -
W57-XB1A4A10-5 TE Connectivity Potter & Brumfield Relays

W57-XB1A4A10-5

CIR BRKR THRM 5A 250VAC

TE Connectivity Potter & Brumfield Relays

800 -
Datasheet W57 Tray Active Panel Mount Thermal 5A 250 V - Push to Reset 1 - - -
CTB-B-B-12 Carling Technologies

CTB-B-B-12

CIR BRKR THRM 12A 250VAC 50VDC

Carling Technologies

267 -
Datasheet CTB Bulk Active Panel Mount Thermal 12A 250 V 50 V Push to Reset 1 None - CE, cUL, UL1077, VDE
W54-XA1C4A10-30 TE Connectivity Potter & Brumfield Relays

W54-XA1C4A10-30

CIR BRKR THRM 30A 250VAC

TE Connectivity Potter & Brumfield Relays

949 -
Datasheet W54 Tray Active Panel Mount Thermal 30A 250 V - Push to Reset 1 - - -
W51-A121B1-6 TE Connectivity Potter & Brumfield Relays

W51-A121B1-6

CIR BRKR THRM 6A 125VAC 50VDC

TE Connectivity Potter & Brumfield Relays

933 -
Datasheet W51 Tray Active Panel Mount Thermal 6A 125 V 50 V Rocker 1 Red - -
W28-XQ1A-13 TE Connectivity Potter & Brumfield Relays

W28-XQ1A-13

CIR BRKR THRM 13A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

549 -
Datasheet W28 Bulk Active Panel Mount Thermal 13A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-6 TE Connectivity Potter & Brumfield Relays

W28-XT1A-6

CIR BRKR THRM 6A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

455 -
Datasheet W28 Bulk Active Panel Mount Thermal 6A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-12 TE Connectivity Potter & Brumfield Relays

W28-XT1A-12

CIR BRKR THRM 12A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

296 -
Datasheet W28 Bulk Active Panel Mount Thermal 12A 250 V 32 V Push to Reset 1 - - -
W28-XT1A-5 TE Connectivity Potter & Brumfield Relays

W28-XT1A-5

CIR BRKR THRM 5A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

104 -
Datasheet W28 Bulk Active Panel Mount Thermal 5A 250 V 32 V Push to Reset 1 - - -
W28-XQ1A-14 TE Connectivity Potter & Brumfield Relays

W28-XQ1A-14

CIR BRKR THRM 14A 250VAC 32VDC

TE Connectivity Potter & Brumfield Relays

566 -
Datasheet W28 Bulk Active Panel Mount Thermal 14A 250 V 32 V Push to Reset 1 - - -
W51-A151A1-5 TE Connectivity Potter & Brumfield Relays

W51-A151A1-5

CIR BRKR THRM 5A 250VAC 50VDC

TE Connectivity Potter & Brumfield Relays

1,975 -
Datasheet W51 Tray Active Panel Mount Thermal 5A 125 V 50 V Rocker 1 - - -
1658-G21-02-P10-6A E-T-A

1658-G21-02-P10-6A

CIR BRKR THRM 6A 240VAC 28VDC

E-T-A

225 -
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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WINSUN SOURCING SUPPORT

Need Circuit Breakers Sourcing Support?

Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

Global component sourcing support BOM, shortage and EOL support
FREQUENTLY ASKED QUESTIONS

Circuit Breakers FAQ

Common questions about selecting, comparing and sourcing Circuit Breakers components through Winsun (HK) Electronics.

What should I check when selecting Circuit Breakers components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific Circuit Breakers part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find Circuit Breakers parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for Circuit Breakers components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.