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
2GU40M CIR BRK THRM-MAG 40A 277VAC LEVR Altech	9,871	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	40A	277 V	-	Lever	2	-	-	UL508
1ZU10L CIR BRK THRM-MAG 10A 277VAC LEVR Altech	8,066	-	RFQ	Datasheet	L	Bulk	Active	DIN Rail	Thermal Magnetic	10A	277 V	-	Lever	1	-	-	UL489
3DU30M CIR BRK THRM-MAG 30A 277VAC LEVR Altech	8,718	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	30A	277 V	-	Lever	3	-	-	UL508
3DU60M CIR BRK THRM-MAG 60A 277VAC LEVR Altech	9,393	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	60A	277 V	-	Lever	3	-	-	UL508
2BU1L CIR BRK THRM-MAG 1A 277VAC LEVER Altech	2,813	-	RFQ	Datasheet	L	Bulk	Active	DIN Rail	Thermal Magnetic	1A	277 V	-	Lever	2	-	-	UL489
2DR5L CIR BRK THRM-MAG 5A 277VAC LEVER Altech	7,886	-	RFQ	Datasheet	L	Bulk	Active	DIN Rail	Thermal Magnetic	5A	277 V	-	Lever	2	-	-	UL489
3BU20M CIR BRK THRM-MAG 20A 277VAC LEVR Altech	4,990	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	20A	277 V	-	Lever	3	-	-	UL508
2CU50M CIR BRK THRM-MAG 50A 277VAC LEVR Altech	7,293	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	50A	277 V	-	Lever	2	-	-	UL508
1DU50M CIR BRK THRM-MAG 50A 277VAC LEVR Altech	3,496	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	50A	277 V	-	Lever	1	-	-	UL508
2DU6M CIR BRK THRM-MAG 6A 277VAC LEVER Altech	9,599	-	RFQ	Datasheet	M	Bulk	Active	DIN Rail	Thermal Magnetic	6A	277 V	-	Lever	2	-	-	UL508

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

Send part number & quantity Request a Quote

Need sourcing assistance? Contact Sales

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.