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.

Parametric Selection Filter options by technical parameters

Stock & Datasheets Review availability and technical references

RFQ & BOM Support Send your target MPN, quantity or BOM

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
447-S-H-FN-300A CIR BRKR THRM-MAG 300A 28VDC E-T-A	3,994	-	RFQ	Datasheet	447	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	300A	-	28 V	Push to Reset	1	None	-	CSA C22.2 No 235, UL1077
447-S-H-FN-400A CIR BRKR THRM-MAG 400A 28VDC E-T-A	4,539	-	RFQ	Datasheet	447	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	400A	-	28 V	Push to Reset	1	None	-	CSA C22.2 No 235, UL1077
446-S-H-N-100A CIR BRKR THRM 100A E-T-A	8,714	-	RFQ	Datasheet	446	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	100A	-	28 V	Push to Reset	1	-	-	CSA C22.2 No 235, UL1077
446-S-H-N-150A CIR BRKR THRM 150A E-T-A	3,953	-	RFQ	Datasheet	446	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	150A	-	28 V	Push to Reset	1	-	-	CSA C22.2 No 235, UL1077
446-S-H-N-250A CIR BRKR THRM 250A E-T-A	7,625	-	RFQ	Datasheet	446	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	250A	-	28 V	Push to Reset	1	-	-	CSA C22.2 No 235, UL1077
446-S-H-N-400A CIR BRKR THRM 400A E-T-A	8,266	-	RFQ	Datasheet	446	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	400A	-	28 V	Push to Reset	1	-	-	CSA C22.2 No 235, UL1077
583-G111-K1M1-A1S1UN-5A CIR BRKR THRM 5A E-T-A	2,397	-	RFQ	Datasheet	583	Bulk	Active	Panel Mount	Thermal	5A	200 V	28 V	Push-Pull Plunger	3	None	-	-
583-G733-J1M1-B2S5XG-5A CIR BRKR THRM 5A 200VAC 28VDC E-T-A	7,058	-	RFQ	Datasheet	583	Bulk	Active	Panel Mount	Thermal	5A	200 V	28 V	Push-Pull Plunger	3	None	-	-
447-S-H-FN-SI-125A CIR BRKR THRM-MAG 125A 28VDC E-T-A	3,886	-	RFQ	Datasheet	447	Bulk	Obsolete	Chassis Mount	Thermal Magnetic	125A	-	28 V	Push to Reset	1	None	-	CSA C22.2 No 235, UL1077
583-96-TC-K14-2A CIR BRKR THRM 2A 200VAC 28VDC E-T-A	5,701	-	RFQ	Datasheet	583	Bulk	Active	Panel Mount	Thermal	2A	200 V	28 V	Push-Pull Plunger	3	None	-	-

WINSUN SOURCING SUPPORT

Need Help Sourcing Circuit Breakers?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing

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FREQUENTLY ASKED QUESTIONS

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.