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Circuit Breakers

Photo Mfr. Part # Availability 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
447-S-H-FN-400A E-T-A electronic component

447-S-H-FN-400A

CIR BRKR THRM-MAG 400A 28VDC

E-T-A

4,539
RFQ

Datasheet

447 Bulk Obsolete Chassis Mount Thermal Magnetic 400A - 28 V Push to Reset 1 None - CSA C22.2 No 235, UL1077
446-S-H-N-100A E-T-A electronic component

446-S-H-N-100A

CIR BRKR THRM 100A

E-T-A

8,714
RFQ

Datasheet

446 Bulk Obsolete Chassis Mount Thermal Magnetic 100A - 28 V Push to Reset 1 - - CSA C22.2 No 235, UL1077
446-S-H-N-150A E-T-A electronic component

446-S-H-N-150A

CIR BRKR THRM 150A

E-T-A

3,953
RFQ

Datasheet

446 Bulk Obsolete Chassis Mount Thermal Magnetic 150A - 28 V Push to Reset 1 - - CSA C22.2 No 235, UL1077
446-S-H-N-250A E-T-A electronic component

446-S-H-N-250A

CIR BRKR THRM 250A

E-T-A

7,625
RFQ

Datasheet

446 Bulk Obsolete Chassis Mount Thermal Magnetic 250A - 28 V Push to Reset 1 - - CSA C22.2 No 235, UL1077
446-S-H-N-400A E-T-A electronic component

446-S-H-N-400A

CIR BRKR THRM 400A

E-T-A

8,266
RFQ

Datasheet

446 Bulk Obsolete Chassis Mount Thermal Magnetic 400A - 28 V Push to Reset 1 - - CSA C22.2 No 235, UL1077
3VA51505ED321AA0 Siemens electronic component

3VA51505ED321AA0

BRKR 3VA51 3P 50A 35KA FTFM NAV

Siemens

8,456
RFQ

Datasheet

SENTRON Box Active DIN Rail - 50A 690 V - Lever 3 None - CCC, UL489
3VA51205ED321AA0 Siemens electronic component

3VA51205ED321AA0

BRKR 3VA51 3P 20A 35KA FTFM NAV

Siemens

7,483
RFQ

Datasheet

SENTRON Box Active DIN Rail - 20A 690 V - Lever 3 None - CCC, UL489
3VA51255ED321AA0 Siemens electronic component

3VA51255ED321AA0

BRKR 3VA51 3P 25A 35KA FTFM NAV

Siemens

2,046
RFQ

Datasheet

SENTRON Box Active DIN Rail - 25A 690 V - Lever 3 None - CCC, UL489
3VA51455ED321AA0 Siemens electronic component

3VA51455ED321AA0

BRKR 3VA51 3P 45A 35KA FTFM NAV

Siemens

9,784
RFQ

Datasheet

SENTRON Box Active DIN Rail - 45A 690 V - Lever 3 None - CCC, UL489
3VA51305ED321AA0 Siemens electronic component

3VA51305ED321AA0

BRKR 3VA51 3P 30A 35KA FTFM NAV

Siemens

8,781
RFQ

Datasheet

SENTRON Box Active DIN Rail - 30A 690 V - Lever 3 None - CCC, UL489
3VA51355ED321AA0 Siemens electronic component

3VA51355ED321AA0

BRKR 3VA51 3P 35A 35KA FTFM NAV

Siemens

4,555
RFQ

Datasheet

SENTRON Box Active DIN Rail - 35A 690 V - Lever 3 None - CCC
3VA51405ED321AA0 Siemens electronic component

3VA51405ED321AA0

BRKR 3VA51 3P 40A 35KA FTFM NAV

Siemens

2,432
RFQ

Datasheet

SENTRON Box Active DIN Rail - 40A 690 V - Lever 3 None - CCC, UL489
3VA51605ED321AA0 Siemens electronic component

3VA51605ED321AA0

BRKR 3VA51 3P 60A 35KA FTFM NAV

Siemens

4,494
RFQ

Datasheet

SENTRON Box Active DIN Rail - 60A 690 V - Lever 3 None - CCC, UL489
203-141-25045-2 Sensata-Airpax electronic component

203-141-25045-2

CIR BRKR ROCKER

Sensata-Airpax

5,176
RFQ

-

- Bulk Not For New Designs - - - - - - - - - UL1077
583-G111-K1M1-A1S1UN-5A E-T-A electronic component

583-G111-K1M1-A1S1UN-5A

CIR BRKR THRM 5A

E-T-A

2,397
RFQ

Datasheet

583 Bulk Active Panel Mount Thermal 5A 200 V 28 V Push-Pull Plunger 3 None - -
3RV20324RA15 Siemens electronic component

3RV20324RA15

CIRCUIT BREAKER. SCREW-TYPE. 80

Siemens

2,458
RFQ

Datasheet

SIRIUS Box Active DIN Rail Thermal Magnetic 80A 690 V - Rotary 3 None - ATEX, CCC, CE, CSA, EAC, IECEx, UL, VDE
203-222-1-62F-103-4-3-13 Sensata-Airpax electronic component

203-222-1-62F-103-4-3-13

CIR BRKR 10A 32VDC ROCKER

Sensata-Airpax

3,099
RFQ

Datasheet

203 Bulk Not For New Designs Panel Mount Magnetic 10A 250 V 32 V Rocker 3 Green 120V UL1077
QOB330VH5237 Schneider Electric electronic component

QOB330VH5237

MINIATURE CIRCUIT BREAKER 240V 3

Schneider Electric

6,123
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 30A - - Lever 3 None - CSA, UL
3VA51905EC311AA0 Siemens electronic component

3VA51905EC311AA0

BRKR 3VA51 3P 90A 35KA FTAM NAV

Siemens

3,319
RFQ

Datasheet

SENTRON Box Active DIN Rail - 90A 690 V - Lever 3 None - CCC, CE, CSA, EAC, UL489, VDE
UTS250N-FTU-175 Altech Corporation electronic component

UTS250N-FTU-175

CIRCUIT BREAKER 175A/480V AC 3P

Altech Corporation

4,224
RFQ

-

UTS250 Bulk Active DIN Rail Thermal 175A 480 V - Lever 3 None - -

Circuit Breakers Electronic Components

Explore Circuit Breakers electronic components, related subcategories, product specifications, datasheets and sourcing options. We support original component procurement, BOM sourcing and RFQ services for engineers, distributors and global buyers.

Frequently Asked Questions

Q1: What products are included in Circuit Breakers?
This category includes related Circuit Breakers subcategories and electronic components from multiple manufacturers. Select a lower-level category to view available part numbers.

Q2: Can I request a quotation for Circuit Breakers components?
Yes. Send us the part numbers and required quantities, and our team will provide sourcing and quotation support.

Q3: Are datasheets and technical information available?
Yes. Datasheets and technical information are available on supported final product pages and product listings.

Q4: Do you support BOM sourcing?
Yes. We support BOM matching, component procurement and alternative sourcing for Circuit Breakers and other electronic components.