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EXPLORE COMPONENTS

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.

Compare Part Numbers Review available models and manufacturers
Datasheets & Specifications Access technical references quickly
RFQ & BOM Support Send quantities for sourcing and quotation
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
2CU20M Altech

2CU20M

CIR BRK THRM-MAG 20A 277VAC LEVR

Altech

4,707 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 20A 277 V - Lever 2 - - UL508
DC2CR2L Altech

DC2CR2L

CIR BRK THRM-MAG 2A 250VDC LEVER

Altech

7,082 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 2A - 250 V Lever 2 - - UL489
3CU25M Altech

3CU25M

CIR BRK THRM-MAG 25A 277VAC LEVR

Altech

3,288 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 25A 277 V - Lever 3 - - UL508
2ZU4L Altech

2ZU4L

CIR BRK THRM-MAG 4A 277VAC LEVER

Altech

9,198 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 4A 277 V - Lever 2 - - UL489
1BU05L Altech

1BU05L

CIR BRK THRM-MAG 277VAC LEVER

Altech

2,125 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 500mA 277 V - Lever 1 - - UL489
1CR30L Altech

1CR30L

CIR BRK THRM-MAG 30A 277VAC LEVR

Altech

5,031 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 30A 277 V - Lever 1 - - UL489
1BU6M Altech

1BU6M

CIR BRK THRM-MAG 6A 277VAC LEVER

Altech

8,779 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 6A 277 V - Lever 1 - - UL508
2GU6M Altech

2GU6M

CIR BRK THRM-MAG 6A 277VAC LEVER

Altech

2,806 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 6A 277 V - Lever 2 - - UL508
1BU5M Altech

1BU5M

CIR BRK THRM-MAG 5A 277VAC LEVER

Altech

9,690 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 5A 277 V - Lever 1 - - UL508
2CU15M Altech

2CU15M

CIR BRK THRM-MAG 15A 277VAC LEVR

Altech

6,034 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 15A 277 V - Lever 2 - - UL508
2ZU5L Altech

2ZU5L

CIR BRK THRM-MAG 5A 277VAC LEVER

Altech

7,101 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 5A 277 V - Lever 2 - - UL489
1BU1M Altech

1BU1M

CIR BRK THRM-MAG 1A 277VAC LEVER

Altech

7,404 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 1A 277 V - Lever 1 - - UL508
1GU25M Altech

1GU25M

CIR BRK THRM-MAG 25A 277VAC LEVR

Altech

5,719 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 25A 277 V - Lever 1 - - UL508
1BU20M Altech

1BU20M

CIR BRK THRM-MAG 20A 277VAC LEVR

Altech

4,382 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 20A 277 V - Lever 1 - - UL508
2ZU2L Altech

2ZU2L

CIR BRK THRM-MAG 2A 277VAC LEVER

Altech

2,754 -
Datasheet L Bulk Active DIN Rail Thermal Magnetic 2A 277 V - Lever 2 - - UL489
1DU05M Altech

1DU05M

CIR BRK THRM-MAG 277VAC LEVER

Altech

6,622 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 500mA 277 V - Lever 1 - - UL508
3CU35R Altech

3CU35R

CIR BRK THRM-MAG 35A 277VAC LEVR

Altech

6,851 -
Datasheet R Bulk Active DIN Rail Thermal Magnetic 35A 277 V - Lever 3 - - UL1077
2CU5M Altech

2CU5M

CIR BRK THRM-MAG 5A 277VAC LEVER

Altech

4,388 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 5A 277 V - Lever 2 - - UL508
2BU2M Altech

2BU2M

CIR BRK THRM-MAG 2A 277VAC LEVER

Altech

7,389 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 2A 277 V - Lever 2 - - UL508
3GU60M Altech

3GU60M

CIR BRK THRM-MAG 60A 277VAC LEVR

Altech

5,780 -
Datasheet M Bulk Active DIN Rail Thermal Magnetic 60A 277 V - Lever 3 - - UL508
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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.