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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
IUGN6-1-66-40.0 Sensata-Airpax

IUGN6-1-66-40.0

CIR BRKR MAG-HYDR LEVER 40A

Sensata-Airpax

3,426 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 40A - - Toggle 1 - - -
IUGN6-1-72-50.0 Sensata-Airpax

IUGN6-1-72-50.0

CIR BRKR MAG-HYDR LEVER 50A

Sensata-Airpax

9,475 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 50A - - Toggle 1 - - -
IUGN6-1REC4-51-30.0-A Sensata-Airpax

IUGN6-1REC4-51-30.0-A

CIR BRKR MAG-HYDR LEVER 30A

Sensata-Airpax

3,098 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 30A - - Toggle 1 - - -
IUGN6-1REC4-52-5.00-A Sensata-Airpax

IUGN6-1REC4-52-5.00-A

CIR BRKR MAG-HYDR LEVER 5A

Sensata-Airpax

9,067 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 5A - - Toggle 1 - - -
IUGN6-1REC4-62-1.00 Sensata-Airpax

IUGN6-1REC4-62-1.00

CIR BRKR MAG-HYDR LEVER 1A

Sensata-Airpax

2,040 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 1A - - Toggle 1 - - -
IUGN66-1-52-20.0-B Sensata-Airpax

IUGN66-1-52-20.0-B

CIR BRKR MAG-HYDR LEVER 20A

Sensata-Airpax

5,000 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 20A - - Toggle 2 - - -
IUGN66-1-52-7.50 Sensata-Airpax

IUGN66-1-52-7.50

CIR BRKR MAG-HYDR LEVER 7.5A

Sensata-Airpax

8,881 -
Datasheet IUG Bulk Active Panel Mount Magnetic (Hydraulic Delay) 7.5A - - Toggle 2 - - -
3120-F503-G7Q1-W14DR4-20A E-T-A

3120-F503-G7Q1-W14DR4-20A

CIR BRKR THRM 20A 250VAC/50VDC

E-T-A

3,406 -
Datasheet 3120 Bulk Obsolete Panel Mount Thermal 20A 250 V 50 V Push to Reset 2 Red 185V CSA C22.2 No 235, IEC 60934, UL1077
3130-F110-H7T1-W29AG3-10A E-T-A

3130-F110-H7T1-W29AG3-10A

CIR BRKR THRM 10A 250VAC/50VDC

E-T-A

4,385 -
Datasheet 3130 Bulk Active Panel Mount Thermal 10A 250 V 50 V Rocker 1 Green 20V CE, CSA C22.2 No 235, GB 17701, IEC 60934, UL1077
3500-K20-SI-5A E-T-A

3500-K20-SI-5A

CIR BRKR THRMMAG 5A 250VAC/80VDC

E-T-A

9,707 -
Datasheet 3500 Bulk Active Panel Mount Thermal Magnetic 5A 250 V 80 V Push to Reset 1 None - CSA C22.2 No 235, IEC 60934, UL1077
8345-B01A-T3M0-DB1B1B-30A E-T-A

8345-B01A-T3M0-DB1B1B-30A

CR BKR MAG-HYDR 30A 480VAC/80VDC

E-T-A

9,382 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 30A 480 V 80 V Lever 1 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
8345-B22A-V3M2-DB1B1B-80A-V E-T-A

8345-B22A-V3M2-DB1B1B-80A-V

CR BKR MAG-HYDR 80A 480VAC/80VDC

E-T-A

7,791 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 80A 480 V 80 V Lever 2 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
8345-C12A-S3M2-DB1B1C-10A E-T-A

8345-C12A-S3M2-DB1B1C-10A

CR BKR MAG-HYDR 10A 480VAC/80VDC

E-T-A

8,807 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 10A 480 V 80 V Lever 2 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
8345-C12A-S3M2-DB1B1C-2A E-T-A

8345-C12A-S3M2-DB1B1C-2A

CR BRKR MAG-HYDR 2A 480VAC/80VDC

E-T-A

2,665 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 2A 480 V 80 V Lever 2 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
736W-B/302 Qualtek

736W-B/302

CIR BRKR THRM 15A 125VAC ROCKER

Qualtek

8,903 -
Datasheet 736W Bulk Active Panel Mount Thermal 15A 125 V - Rocker 1 - - -
0911047 Phoenix Contact

0911047

ECP 3

Phoenix Contact

2,521 -
Datasheet ECP Bulk Obsolete Panel Mount Solid State 3A - 24 V - 1 - - -
QMB-153-00ENN-3BA Qualtek

QMB-153-00ENN-3BA

CIR BRKR THRM 15A 250VAC 32VDC

Qualtek

7,896 -
Datasheet QMB Bulk Active Panel Mount Thermal 15A 250 V 32 V Push to Reset 1 - - TUV
N41-B1-24-615-121-F3 Carling Technologies

N41-B1-24-615-121-F3

CIR BRKR MAG-HYDR 15A 277VAC

Carling Technologies

5,920 -
Datasheet N Box Active Panel Mount Magnetic (Hydraulic Delay) 15A 240 V - Rocker 1 None - TUV, UL489
N32-B2-44-620-122-D3 Carling Technologies

N32-B2-44-620-122-D3

CIR BRKR MAG-HYDR 20A 240VAC

Carling Technologies

3,910 -
Datasheet N Box Obsolete Panel Mount Magnetic (Hydraulic Delay) 20A 240 V - Push to Reset 2 None - TUV, UL489
AP6-1-61-102 Sensata-Airpax

AP6-1-61-102

CIRCUIT BREAKER 1A SEALED

Sensata-Airpax

7,790 -
Datasheet AP Bulk Active Panel Mount Magnetic (Hydraulic Delay) 1A 240 V 50 V Toggle 1 None - CSA, 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.