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.

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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
KBUH3D06 Circ Brkr-UL489, 6A, 3P, D Springer Controls	6,539	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	6A	277 V	-	Lever	3	None	-	CE, CSA, UL489
KBUN1D50 Circ Brkr-UL489, 50A, 1P, D Springer Controls	3,559	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	50A	240 V	-	Lever	1	None	-	CE, CSA, UL489
KBUN2C50 Circ Brkr-UL489, 50A, 2P, C Springer Controls	4,178	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	50A	240 V	-	Lever	2	None	-	CE, CSA, UL489
KBUN3D40 Circ Brkr-UL489, 40A, 3P, D Springer Controls	8,214	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	40A	240 V	-	Lever	3	None	-	CE, CSA, UL489
KBUH3D10 Circ Brkr-UL489, 10A, 3P, D Springer Controls	2,536	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	10A	277 V	-	Lever	3	None	-	CE, CSA, UL489
KBUN3C40 Circ Brkr-UL489, 40A, 3P, C Springer Controls	2,037	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	40A	240 V	-	Lever	3	None	-	CE, CSA, UL489
KBUH3C20 Circ Brkr-UL489, 20A, 3P, C Springer Controls	8,580	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	20A	277 V	-	Lever	3	None	-	CE, CSA, UL489
KBUN3C60 Circ Brkr-UL489, 60A, 3P, C Springer Controls	2,788	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	60A	240 V	-	Lever	3	None	-	CE, CSA, UL489
KBUH2D06 Circ Brkr-UL489, 6A, 2P, D Springer Controls	2,202	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	6A	277 V	-	Lever	2	None	-	CE, CSA, UL489
KBUH2C20 Circ Brkr-UL489, 20A, 2P, C Springer Controls	8,647	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	20A	277 V	-	Lever	2	None	-	CE, CSA, UL489
KBUH2C10 Circ Brkr-UL489, 10A, 2P, C Springer Controls	2,629	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	10A	277 V	-	Lever	2	None	-	CE, CSA, UL489
KBUH1C10 Circ Brkr-UL489, 10A, 1P, C Springer Controls	9,205	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	10A	277 V	-	Lever	1	None	-	CE, CSA, UL489
KBUN2D60 Circ Brkr-UL489, 60A, 2P, D Springer Controls	4,137	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	60A	240 V	-	Lever	2	None	-	CE, CSA, UL489
KBUH1C30 Circ Brkr-UL489, 30A, 1P, C Springer Controls	7,072	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	30A	277 V	-	Lever	1	None	-	CE, CSA, UL489
KBUN1D40 Circ Brkr-UL489, 40A, 1P, D Springer Controls	4,950	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	40A	240 V	-	Lever	1	None	-	CE, CSA, UL489
KBUN3C50 Circ Brkr-UL489, 50A, 3P, C Springer Controls	9,534	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	50A	240 V	-	Lever	3	None	-	CE, CSA, UL489
KBUN3D60 Circ Brkr-UL489, 60A, 3P, D Springer Controls	6,819	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	60A	240 V	-	Lever	3	None	-	CE, CSA, UL489
KBUH1D06 Circ Brkr-UL489, 6A, 1P, D Springer Controls	3,496	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	6A	277 V	-	Lever	1	None	-	CE, CSA, UL489
KBUH2D30 Circ Brkr-UL489, 30A, 2P, D Springer Controls	3,021	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	30A	277 V	-	Lever	2	None	-	CE, CSA, UL489
KBUH1D25 Circ Brkr-UL489, 25A, 1P, D Springer Controls	2,617	-	RFQ	Datasheet	KBUD	Retail Package	Active	DIN Rail	Thermal	25A	277 V	-	Lever	1	None	-	CE, CSA, UL489

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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.