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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
W93-X112-15 TE Connectivity Potter & Brumfield Relays

W93-X112-15

CIR BRKR MAG-HYDR 15A 277VAC

TE Connectivity Potter & Brumfield Relays

3,475 -
Datasheet W9 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 15A 277 V - Lever 3 - - -
W93-X112-5 TE Connectivity Potter & Brumfield Relays

W93-X112-5

CIR BRKR MAG-HYDR 5A 277VAC

TE Connectivity Potter & Brumfield Relays

3,089 -
Datasheet W9 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 5A 277 V - Lever 3 - - -
W93-X112-50 TE Connectivity Potter & Brumfield Relays

W93-X112-50

CIR BRKR MAG-HYDR 50A 277VAC

TE Connectivity Potter & Brumfield Relays

2,261 -
Datasheet W9 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 50A 277 V - Lever 3 - - -
3RV20214AA10 Siemens

3RV20214AA10

MSP S0 11-16A SCREW

Siemens

174 -
Datasheet 3RV2 Bulk Active DIN Rail Thermal 16A 690 V - Rotary 3 None - ATEX, CCC, CSA, EAC, UL
3RV20214DA10 Siemens

3RV20214DA10

MSP S0 20-25A SCREW

Siemens

3,899 -
Datasheet 3RV2 Bulk Active DIN Rail Thermal 25A 690 V - Rotary 3 None - ATEX, CCC, CSA, EAC, UL
3RV20314PA10 Siemens

3RV20314PA10

MSP S2 CLASS 10 28-36A SCREW

Siemens

4,897 -
Datasheet 3RV2 Bulk Active DIN Rail Thermal 36A 690 V - Rotary 3 None - CCC, CSA, EAC, IECEx, UL
QMB-103-00ENN-3BA Qualtek

QMB-103-00ENN-3BA

CIR BRKR THRM 10A 250VAC 32VDC

Qualtek

590 -
Datasheet QMB Bulk Active Panel Mount Thermal 10A 250 V 32 V Push to Reset 1 - - TUV
QMB-033-00ENN-3BA Qualtek

QMB-033-00ENN-3BA

CIR BRKR THRM 3A 250VAC 32VDC

Qualtek

848 -
Datasheet QMB Bulk Active Panel Mount Thermal 3A 250 V 32 V Push to Reset 1 - - TUV
4404.0003 SCHURTER Inc.

4404.0003

CIR BRKR THRM 8A 240VAC 48VDC

SCHURTER Inc.

982 -
Datasheet T9-611 Box Active Panel Mount Thermal 8A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0028 SCHURTER Inc.

4404.0028

CIR BRKR THRM 15A 240VAC 48VDC

SCHURTER Inc.

252 -
Datasheet T9-311 Box Active Panel Mount Thermal 15A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0037 SCHURTER Inc.

4404.0037

CIR BRKR THRM 7A 240VAC 48VDC

SCHURTER Inc.

209 -
Datasheet T9-711 Box Active Panel Mount Thermal 7A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0021 SCHURTER Inc.

4404.0021

CIR BRKR THRM 8A 240VAC 48VDC

SCHURTER Inc.

200 -
Datasheet T9-311 Box Active Panel Mount Thermal 8A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0019 SCHURTER Inc.

4404.0019

CIR BRKR THRM 4A 240VAC 48VDC

SCHURTER Inc.

199 -
Datasheet T9-311 Box Active Panel Mount Thermal 4A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0022 SCHURTER Inc.

4404.0022

CIR BRKR THRM 10A 240VAC 48VDC

SCHURTER Inc.

147 -
Datasheet T9-311 Box Active Panel Mount Thermal 10A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0005 SCHURTER Inc.

4404.0005

CIR BRKR THRM 12A 240VAC 48VDC

SCHURTER Inc.

139 -
Datasheet T9-611 Box Active Panel Mount Thermal 12A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
QLB-203-11B3N-3BA Qualtek

QLB-203-11B3N-3BA

CIR BRKR THRM 20A 250VAC 32VDC

Qualtek

1,766 -
Datasheet QLB Bulk Active Panel Mount Thermal 20A 250 V 32 V Push to Reset 1 - - -
4404.0102 SCHURTER Inc.

4404.0102

CIRC BREAKER PCB MNT 10A

SCHURTER Inc.

16,410 -
Datasheet T9-818 Bulk Active Through Hole Thermal 10A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0098 SCHURTER Inc.

4404.0098

CIRC BREAKER PCB MNT 5A

SCHURTER Inc.

1,390 -
Datasheet T9-818 Bulk Active Through Hole Thermal 5A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0097 SCHURTER Inc.

4404.0097

CIRC BREAKER PCB MNT 4A

SCHURTER Inc.

218 -
Datasheet T9-818 Bulk Active Through Hole Thermal 4A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
4404.0099 SCHURTER Inc.

4404.0099

CIRC BREAKER PCB MNT 6A

SCHURTER Inc.

190 -
Datasheet T9-818 Bulk Active Through Hole Thermal 6A 240 V 48 V Push to Reset 1 - - CSA C22.2 No 235, EN 60934, GB 17701, 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.