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FILTERED PRODUCT SELECTION

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
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
5SY44408 Siemens

5SY44408

SUP PTOR 5SY4 4P 480V 40A 5K D-T

Siemens

8,317 -
Datasheet 5SY4 Bulk Active DIN Rail - 40A 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44256 Siemens

5SY44256

SUP PTOR 5SY4 4P 480V 25A 5K B-T

Siemens

7,040 -
Datasheet 5SY4 Bulk Active DIN Rail - 25A 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44025 Siemens

5SY44025

SUP PTOR 5SY4 4P 480V 2A 5K A-TR

Siemens

8,249 -
Datasheet 5SY4 Bulk Active DIN Rail - 2A 400 V 72 V Lever 4 None - CE, EAC, UR, VDE
5SY44058 Siemens

5SY44058

SUP PTOR 5SY4 4P 480V 0.5A 5K D-

Siemens

2,126 -
Datasheet 5SY4 Bulk Active DIN Rail - 500mA 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44148 Siemens

5SY44148

SUP PTOR 5SY4 4P 480V 0.1A 5K D-

Siemens

7,886 -
Datasheet 5SY4 Bulk Active DIN Rail - 300mA 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44087 Siemens

5SY44087

SUP PTOR 5SY4 4P 480V 8A 5K C-TR

Siemens

7,049 -
Datasheet 5SY4 Bulk Active DIN Rail - 8A 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44108 Siemens

5SY44108

SUP PTOR 5SY4 4P 480V 10A 5K D-T

Siemens

9,589 -
Datasheet 5SY4 Bulk Active DIN Rail - 10A 400 V 72 V Lever 4 None - CCC, CE, EAC, IMQ, RCM, UR, VDE
5SY44135 Siemens

5SY44135

SUP PTOR 5SY4 4P 480V 13A 5K A-T

Siemens

8,800 -
Datasheet 5SY4 Bulk Active DIN Rail - 13A 400 V 72 V Lever 4 None - CE, EAC, UR, VDE
5SY44165 Siemens

5SY44165

SUP PTOR 5SY4 4P 480V 16A 5K A-T

Siemens

5,232 -
Datasheet 5SY4 Bulk Active DIN Rail - 16A 400 V 72 V Lever 4 None - CE, EAC, UR, VDE
5SY44035 Siemens

5SY44035

SUP PTOR 5SY4 4P 480V 3A 5K A-TR

Siemens

5,762 -
Datasheet 5SY4 Bulk Active DIN Rail - 3A 400 V 72 V Lever 4 None - CE, EAC, UR, VDE
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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
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.