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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
1D3UR1D3UR 3A MCB D CHAR 1 P 277VAC U |
6,584 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 3A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1D4UR1D4UR 4A MCB D CHAR 1 P 277VAC U |
7,732 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 4A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1D5UR1D5UR 5A MCB D CHAR 1 P 277VAC U |
8,907 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 5A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1D6UR1D6UR 6A MCB D CHAR 1 P 277VAC U |
3,338 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 6A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1D7UR1D7UR 7A MCB D CHAR 1 P 277VAC U |
3,973 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 7A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1D8UR1D8UR 8A MCB D CHAR 1 P 277VAC U |
7,850 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 8A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1B40UR1B40UR 40A MCB B CHAR 1 P 277VAC |
8,175 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 40A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1B50UR1B50UR 50A MCB B CHAR 1 P 277VAC |
9,766 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 50A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1B60UR1B60UR 60A MCB B CHAR 1 P 277VAC |
6,304 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 60A | 277 V | - | Lever | 1 | None | - | CE, cURus, UL1077 |
|
|
1B63UR1B63UR 63A MCB B CHAR 1 P 277VAC |
8,226 | - |
|
Datasheet | UR | Bulk | Active | DIN Rail | Thermal Magnetic | 63A | 277 V | - | Lever | 1 | None | - | CE |
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.
