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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.

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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
8345-B01A-V3K1-DB1B1B-125A-V E-T-A

8345-B01A-V3K1-DB1B1B-125A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

8,638 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 125A 480 V 80 V Lever 1 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-B23A-V3M2-DB1B2B-50A-V E-T-A

8345-B23A-V3M2-DB1B2B-50A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

7,951 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 50A 480 V 80 V Lever 3 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F22A-V3M1-DB1B1B-80A-V E-T-A

8345-F22A-V3M1-DB1B1B-80A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

3,841 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 80A 480 V 80 V Lever 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F22A-V3M1-DB1B1B-5A-V E-T-A

8345-F22A-V3M1-DB1B1B-5A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

9,353 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 5A 480 V 80 V Lever 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F22A-V3M1-DB1B1B-60A-V E-T-A

8345-F22A-V3M1-DB1B1B-60A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

9,244 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 60A 480 V 80 V Lever 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F21A-V3M2-DB1B1B-5A-V E-T-A

8345-F21A-V3M2-DB1B1B-5A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

8,159 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 5A 480 V 80 V Lever 1 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F21A-V3M2-DB1B1B-10A-V E-T-A

8345-F21A-V3M2-DB1B1B-10A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

3,064 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 10A 480 V 80 V Lever 1 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F22A-V3M1-DB1B1B-10A-V E-T-A

8345-F22A-V3M1-DB1B1B-10A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

4,843 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 10A 480 V 80 V Lever 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F22A-V3M1-DB1B1B-50A-V E-T-A

8345-F22A-V3M1-DB1B1B-50A-V

MIN ORD QTY 10. SINGLE OR MULTIP

E-T-A

5,022 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 50A 480 V 80 V Lever 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
8345-F01A-U3M0-DB1B3B-4A-V E-T-A

8345-F01A-U3M0-DB1B3B-4A-V

MINIMUM ORDER QTY 10. SINGLE OR

E-T-A

8,584 -
Datasheet 8345 Bulk Obsolete Panel Mount Magnetic (Hydraulic Delay) 4A 480 V 80 V Lever 1 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL489
3120-N526-P7T1-W01D-X3120-B040001M-20A E-T-A

3120-N526-P7T1-W01D-X3120-B040001M-20A

MIN ORD QTY 10. THE 3120-N THERM

E-T-A

9,853 -
Datasheet - Bulk Active - - - - - - - - - -
REX12-TA1-107-DC24V-2A-CL2 E-T-A

REX12-TA1-107-DC24V-2A-CL2

508, DM, 1CH, 24VDC, 2A, NO COMM

E-T-A

5,514 -
Datasheet REX12 Bulk Active DIN Rail Solid State 2A - 24 V Pushbutton 1 Green, Orange, Red - cULus, UR
1221-260-030-B30 Mechanical Products

1221-260-030-B30

CIR BRKR THRM 3A 250VAC 50VDC

Mechanical Products

4,011 -
Datasheet 12 Bulk Active Panel Mount Thermal 3A - 50 V Push to Reset 1 - - ABYC-E11, UL1077
SU203M-C40 ABB Control

SU203M-C40

Circ Brkr UL489 40A, 3 Pole, C

ABB Control

9,515 -
Datasheet - Retail Package Active DIN Rail Thermal 40A 277 V - Lever 3 None - CE, CSA, UL489
ST202M-C5 ABB Control

ST202M-C5

Circ Brkr UL1077 5A, 2 Pole, C

ABB Control

9,542 -
Datasheet - Retail Package Active DIN Rail Thermal 5A 277 V - Lever 2 None - CE, CSA, VDE, UL1077
4430.2095 SCHURTER Inc.

4430.2095

CIR BRKR THRM 20A 240VAC 60VDC

SCHURTER Inc.

9,165 -
Datasheet TA45 Bulk Active Panel Mount, Snap-In Thermal 20A 240 V 60 V Rocker 2 None - CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, VDE
SPHM2RM0005 Eaton Electrical

SPHM2RM0005

5 AMP UL1077 2P 277/480V 3KAIC 1

Eaton Electrical

7,199 -
Datasheet * Bulk Active - - - - - - - - - -
SPHM2RM0010 Eaton Electrical

SPHM2RM0010

10AMP UL1077 2P 277/480V 3KAIC 1

Eaton Electrical

6,501 -
Datasheet * Bulk Active - - - - - - - - - -
SPHM3RM0015 Eaton Electrical

SPHM3RM0015

15AMP UL1077 3P 277/480V 3KAIC 1

Eaton Electrical

8,907 -
Datasheet * Bulk Active - - - - - - - - - -
SPHM1RM0005 Eaton Electrical

SPHM1RM0005

5A UL1077 1P 277V 3KAIC 18X INRU

Eaton Electrical

7,035 -
Datasheet * Bulk Active - - - - - - - - - -
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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.