Circuit Breakers
Use the filters and product table below to compare Circuit Breakers components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.
If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
446-K-H-N-100ACIR BRKR THRM 100A |
4,566 | - |
|
Datasheet | 446 | Bulk | Active | Chassis Mount | Thermal Magnetic | 100A | - | 28 V | Push to Reset | 1 | - | - | CSA C22.2 No 235, UL1077 |
|
|
446-K-H-N-350ACIRC BRKR THRM MAGNETIC |
5,792 | - |
|
Datasheet | 446 | Bulk | Active | Chassis Mount | Thermal Magnetic | 350A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
447-K-H-FN-300ACIR BRKR THRM-MAG 300A 28VDC |
5,266 | - |
|
Datasheet | 447 | Bulk | Active | Chassis Mount | Thermal Magnetic | 300A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
446-S-H-N-SI-150ACIR BRKR THRMMAG 150A 28VDC |
6,376 | - |
|
Datasheet | 446 | Bulk | Active | Chassis Mount | Thermal Magnetic | 150A | - | 28 V | Push to Reset | 1 | - | - | CSA C22.2 No 235, UL1077 |
|
|
447-K-H-FN-SI-225ACIR BRKR THRM 225A |
5,635 | - |
|
Datasheet | 447 | Bulk | Active | Chassis Mount | Thermal Magnetic | 225A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
449-K-H-FN-181802-500ACIR BRKR THRM-MAG 500A 28VDC |
4,211 | - |
|
Datasheet | 449 | Bulk | Active | Chassis Mount | Thermal Magnetic | 500A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
447-K-H-FN-SI-FA24-150ACIR BRKR THRM-MAG 150A 28VDC |
3,387 | - |
|
Datasheet | 447 | Bulk | Active | Chassis Mount | Thermal Magnetic | 150A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
447-K-H-FN-SI-FA24-400ACIR BRKR THRM-MAG 400A 28VDC |
9,687 | - |
|
Datasheet | 447 | Bulk | Active | Chassis Mount | Thermal Magnetic | 400A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
449-K-H-FN-500ACIR BRKR THRM-MAG 500A 28VDC |
6,444 | - |
|
Datasheet | 449 | Bulk | Active | Chassis Mount | Thermal Magnetic | 500A | - | 28 V | Push to Reset | 1 | None | - | CSA C22.2 No 235, UL1077 |
|
|
437-K60-1-07-SI-FA24-160ASINGLE POLE HIGH PERFORMANCE THE |
3,721 | - |
|
Datasheet | 437 | Bulk | Active | Chassis Mount | Thermal Magnetic | 160A | - | 110 V | Lever | 1 | None | - | - |
Circuit Breakers FAQ
Common questions about filtering, comparing and sourcing Circuit Breakers components.
How can I narrow the Circuit Breakers selection?
Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.
Should I confirm the datasheet before selecting a part?
Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.
Can Winsun (HK) Electronics help source a specific Circuit Breakers part number?
Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.
Do you support BOM, shortage or alternative-part requirements?
Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.
