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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
MMSKW1 Siemens electronic component

MMSKW1

MANUAL SW,TOGGLE,2-POLE,NEMA TYP

Siemens

7,726
RFQ

-

MMS Box Active DIN Rail Manual Motor Controller - - - Rotary 2 None - UL
249-4-33552-3 Sensata-Airpax electronic component

249-4-33552-3

CIRCUIT BREAKER MAG-HYDR LEVER

Sensata-Airpax

5,653
RFQ

Datasheet

- Bulk Active - - - - - - - - - -
A9F53432 Schneider Electric electronic component

A9F53432

ACTI9 IC60H 4P B 32A MCB

Schneider Electric

3,087
RFQ

Datasheet

Acti9 Box Active DIN Rail Thermal Magnetic 32A 440 V - Toggle 4 None - EN 60898-1, EN 60947-2, IEC 60898-1, IEC 60947-2
2510KW1AH Schneider Electric electronic component

2510KW1AH

MANUAL SWITCH 600VAC K+OPTIONS

Schneider Electric

4,475
RFQ

-

K Box Active Chassis Mount Switch Only 30A 600 V - Toggle 2 None - CSA, UL
8345-SR0110-10A E-T-A electronic component

8345-SR0110-10A

CIRC BRKR HYDRAULIC MAGNETIC

E-T-A

3,118
RFQ

-

8345 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 10A 480 V 80 V Lever 1 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
8345-SR0110-25A E-T-A electronic component

8345-SR0110-25A

CIRC BRKR HYDRAULIC MAGNETIC

E-T-A

8,162
RFQ

-

8345 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 25A 480 V 80 V Lever 1 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
8345-SR0110-30A E-T-A electronic component

8345-SR0110-30A

CIRC BRKR HYDRAULIC MAGNETIC

E-T-A

5,459
RFQ

-

8345 Bulk Active Panel Mount Magnetic (Hydraulic Delay) 30A 480 V 80 V Lever 1 None - CSA C22.2 No 235, GB 17701, IEC 60934, UL1077, UL489
FA1-MA-12-825-12A-BG Carling Technologies electronic component

FA1-MA-12-825-12A-BG

CIRCUIT BREAKER

Carling Technologies

8,807
RFQ

Datasheet

F Bulk Active Chassis Mount Magnetic (Hydraulic Delay) 250A 277 V 125 V Lever 1 None - CCC, cULus, UL489
QOB3601021 Schneider Electric electronic component

QOB3601021

MINIATURE CIRCUIT BREAKER 240V 6

Schneider Electric

9,661
RFQ

Datasheet

QO Box Obsolete Panel Mount Thermal Magnetic 60A 240 V 48 V Lever 3 None - CSA, UL
QOB3501021 Schneider Electric electronic component

QOB3501021

MINIATURE CIRCUIT BREAKER 240V 5

Schneider Electric

3,883
RFQ

Datasheet

QO Box Obsolete Panel Mount Thermal Magnetic 50A 240 V 48 V Lever 3 None - CSA, UL
QOB3451021 Schneider Electric electronic component

QOB3451021

MINIATURE CIRCUIT BREAKER 240V 4

Schneider Electric

4,434
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 45A - - Lever 3 None - CSA, UL
QOB3601042 Schneider Electric electronic component

QOB3601042

MINIATURE CIRCUIT BREAKER 240V 6

Schneider Electric

8,520
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 60A 240 V - Lever 3 None - CSA, UL
QOB3351021 Schneider Electric electronic component

QOB3351021

MINIATURE CIRCUIT BREAKER 240V 3

Schneider Electric

3,298
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 35A - - Lever 3 None - CSA, UL
QOB3201021 Schneider Electric electronic component

QOB3201021

MINIATURE CIRCUIT BREAKER 240V 2

Schneider Electric

4,931
RFQ

Datasheet

QO Box Obsolete Panel Mount Thermal Magnetic 20A 240 V 48 V Lever 3 None - CSA, UL
QOB3301021 Schneider Electric electronic component

QOB3301021

MINIATURE CIRCUIT BREAKER 240V 3

Schneider Electric

4,760
RFQ

Datasheet

QO Box Obsolete Panel Mount Thermal Magnetic 30A 240 V 48 V Lever 3 None - CSA, UL
QOB3201042 Schneider Electric electronic component

QOB3201042

MINIATURE CIRCUIT BREAKER 240V 2

Schneider Electric

7,010
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 20A - - Lever 3 None - CSA, UL
QOB3251021 Schneider Electric electronic component

QOB3251021

MINIATURE CIRCUIT BREAKER 240V 2

Schneider Electric

2,771
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 25A - - Lever 3 None - CSA, UL
QOB3151021 Schneider Electric electronic component

QOB3151021

MINIATURE CIRCUIT BREAKER 240V 1

Schneider Electric

6,824
RFQ

Datasheet

QO Box Obsolete Chassis Mount Thermal Magnetic 15A - - Lever 3 None - CSA, UL
QOB3401021 Schneider Electric electronic component

QOB3401021

MINIATURE CIRCUIT BREAKER 240V 4

Schneider Electric

7,809
RFQ

Datasheet

QO Box Obsolete Panel Mount Thermal Magnetic 40A 240 V 48 V Lever 3 None - CSA, UL
SMFFW2 Siemens electronic component

SMFFW2

STRT,MANUAL,TOGGLE SW.,W/GUARD

Siemens

8,572
RFQ

-

SMF Box Active DIN Rail Manual Motor Starter - - - Rotary - None - UL

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.