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Circuit Breakers

Circuit Breakers for Industrial Applications | MRO Electric

Circuit breakers protect industrial automation systems by safely interrupting electrical currents in the event of overloads or faults. They ensure equipment and personnel remain safe while maintaining system uptime. MRO Electric provides fully tested replacement breakers and expert repair services to minimize downtime and ensure long-lasting performance across diverse industrial environments.

Featured Circuit Breaker Products

3RW3036-1AB04 | Siemens Breakers

QO120GFI | Schneider Electric Circuit Breakers

3LV1107-2KM30-0AA0 | Siemens Breakers

Key Features & Benefits

Circuit breakers are essential for protecting industrial equipment and maintaining system reliability. MRO Electric supplies high-quality breakers designed for durability, performance, and fast integration.

Benefits include:

  • High-quality industrial design for reliability
  • Compatibility with leading automation brands
  • Long-lasting performance under demanding conditions
  • Fast shipping and competitive pricing
  • Fully tested replacements for plug-and-play installation
  • Expert repair and technical support services

Circuit Breaker Applications

Circuit breakers are used across industries such as manufacturing, packaging, material handling, and robotics. They protect and control equipment like CNC machines, conveyor systems, pumps, and robotic cells, ensuring safe and reliable operation in high-demand environments.

How to Select the Right Circuit Breaker

Selecting the proper circuit breaker is critical for safety and system performance. Consider key specifications including voltage, current rating, interrupting capacity, trip characteristics, and physical dimensions. Ensure compatibility with your existing automation brand—whether Siemens, Allen-Bradley, Schneider Electric, or others. MRO Electric’s team can provide guidance to choose the correct breaker for your system to prevent downtime and protect equipment.

Why Choose MRO Electric

MRO Electric offers large in-stock inventory, 24-hour shipping, OEM-level repair services, and responsive technical support. Every circuit breaker is fully tested and warranty-backed, ensuring reliable protection for your industrial automation systems.

Latest Circuit Breakers

3VL4740-1AA36-0AA0

Siemens Circuit Breakers

CIRCUIT-BREAKER VL 400N WITHOUT OVERCURRENT RELEASE STANDARD SWITCHING CAPACITY ICU= 55KA / 415 V AC, 3-POLE IN= 400 A, RATED CURRENT WITHOUT AUXILIAR...

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3VL4840-2KN30-0AA0

Siemens Circuit Breakers

AUTOMATION CIRCUIT BREAKER VL 400X

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3VL5763-1AA36-0AA0

Siemens Circuit Breakers

CIRCUIT-BREAKER VL 630N WITHOUT OVERCURRENT RELEASE STANDARD SWITCHING CAPACITY ICU= 45 KA / 415 V AC 3-POLE IN= 630 A, RATED CURRENT WITHOUT AUXILIAR...

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3VL9000-8AU00

Siemens Circuit Breakers

ACCESSORY FOR VL160, VL250, VL400, VL630, VL800, VL1250, VL1600, COM20 MODULE TO CONNECT THE SENTRON VL TO THE PROFIBUS DP READ OUT METERING AND PARAM...

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3VL9000-8AV00

Siemens Circuit Breakers

ACCESSORY FOR VL160, VL250, VL400, VL630, VL800, VL1250, VL1600, COM21 MODULE TO CONNECT THE SENTRON VL TO THE MODBUS RTU, READ OUT METERING AND PARAM...

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3VL9300-3MJ00

Siemens Circuit Breakers

ACCESSORY FOR VL160X, VL160, VL250, STORED ENERGY OPERATOR 24V DC

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3VL9320-7KN30

Siemens Circuit Breakers

SIRIUS 3VL MOLDED CASE CIRCUIT BREAKER, UP TO 1600 A, IEC

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3VL9400-3MQ00

Siemens Circuit Breakers

BREAKERS ACCESSORY FOR VL400, STORED ENERGY OPERATOR 220-250V AC/DC

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3VL9400-4ED40

Siemens Circuit Breakers

ACCESSORY FOR VL400, FRONT BUS-BAR CONNECTION (FLARED) SET OF 4 PCS 4 POLE

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3VL9500-4ED40

Siemens Circuit Breakers

ACCESSORY FOR VL630, FRONT CONNECTION BARS INCREASED POLE SPACING COMPRISES 4 TERMINALS 4-POLE

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3VL9600-3HF05

Siemens Circuit Breakers

MOLDED CASE CIRCUIT BREAKER ACCESSORY FOR VL630, VL800, DOOR OP.MECH. 8UC7

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3VL9600-3HG05

Siemens Circuit Breakers

ACCESSORY FOR VL630, VL800, FOR INSTALLAT. IN DOORS, COMPL. DOOR DRIVE 8UC7 HANDLE RED, MASKING FRAME YELLOW

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3VL9800-1UH00

Siemens Circuit Breakers

ACCESSORY FOR VL630, VL800, VL1250, VL1600, UNDERVOLTAGE RELEASE 220 - 250 V AC RIGHT POLE ONLY

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3VL9800-3HF05

Siemens Circuit Breakers

ACCESSORY FOR VL1250, VL1600, DOOR OP.MECH.8UC7 - NEW DESIGN HANDLE TI-GREY, MASKING FRAME LIGHT GREY FOR INSTALL. IN DOORS, COMPL

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3VL9800-4WA30

Siemens Circuit Breakers

ACCESSORY FOR VL1250, VL1600, DRAW OUT ASSEMBLY REAR CONNECTORS 3 POLES

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3VU1 300 1MM00

Siemens Circuit Breakers

FURNAS STARTER MOTOR PROTECTOR 3POLE 1N...

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3VU1300-1MG00

Siemens Circuit Breakers

SIRIUS CIRCUIT-BREAKER FOR MOTOR PROTECTION UP TO 25A

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3VU1300-1MJ00

Siemens Circuit Breakers

AUTOMATION STARTER MOTOR PROTECTOR 2.4-4AMP 3POLE 1NO...

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3VU1300-1MK00

Siemens Circuit Breakers

AUTOMATION CIRCUIT-BREAKER FOR MOTOR PROTECTION UP TO 25A WITH AUXIL.CONTACTS

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3VU1300-1ML00

Siemens Circuit Breakers

AUTOMATION CIRCUIT-BREAKER

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