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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.
3RW3036-1AB04 | Siemens Breakers
QO120GFI | Schneider Electric Circuit Breakers
3LV1107-2KM30-0AA0 | Siemens Breakers
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.
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.
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.
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.
Siemens Circuit Breakers
SENTRON, FUSE SWITCH DISCONNECTOR 3NP5, 3-POLE, NH3, 630 A, FOR ASSEMBLY AND INSTALLATION ON MOUNTING PLATE, WITH HIGH-SPEED CLOSING FEATURE, SCREW CO...
Siemens Circuit Breakers
REVERSING CONTACTOR ASSEMBLY AC-3, 22 KW/400 V, 3-POLE SIZE S2, SCREW TERMINAL 24V DC ELECTRICAL AND MECHANICAL INTERLOCK
Siemens Circuit Breakers
REVERSING CONTACTOR ASSEMBLY AC-3, 37 KW/400 V, 3-POLE SIZE S3, SCREW TERMINAL 230 V AC, 50/60 HZ ELECTRICAL AND MECHANICAL INTERLOCK
Siemens Circuit Breakers
REVERSING CONTACTOR ASSEMBLY AC-3, 37 KW/400 V, 3-POLE SIZE S3, SCREW TERMINAL 24 V DC ELECTRICAL AND MECHANICAL INTERLOCK
Siemens Circuit Breakers
REVERSING CONTACTOR ASSEMBLY AC-3, 45 KW/400 V, 3-POLE SIZE S3, SCREW TERMINAL 24 V DC ELECTRICAL AND MECHANICAL INTERLOCK
Siemens Circuit Breakers
CONTACTOR ASSEMBLY, STAR-DELTA (ASSEMBLED) WITH TIME RELAIS AT THE SIDE, AC-3 75KW/400 V, 3-POLE, SIZES S3,S3,S2, EL. LOCKED, SCREW CONNECTION, AC 230...
Siemens Circuit Breakers
SIRIUS, COMPACT STARTER, REVERSING STARTER 400 V, 24 V AC/DC, 50... 60 HZ, 8... 32 A, IP20, MAIN CIRCUIT CONNECTION: SCREW TERMINAL, AUXILIARY CIRCUIT...
Siemens Circuit Breakers
SIRIUS, COMPACT STARTER, REVERSING STARTER 400 V, 110... 240 V AC/DC, 50... 60 HZ, 8... 32 A, IP20, MAIN CIRCUIT CONNECTION: SCREW TERMINAL, AUXILIARY...
Siemens Circuit Breakers
Overload relay 50...200 A for motor protection Size S6, Class 10E Contactor mounting/stand-alone installation Main circuit: busbar connection Auxiliar...
Siemens Circuit Breakers
AUTOMATION OVERLOAD RELAY 50...200 A FOR MOTOR PROTECTION SIZE S6
Siemens Circuit Breakers
SIMATIC PXS410 SONAR SENSOR COMPACT SERIES M30 K3 24V DC, SN=200...1300MM 1 NO, 300MA, PNP, 4...20MA M12 CONNECTOR, 5-POLE, TYPE G NICKEL-PLATED BRASS...
Siemens Circuit Breakers
SIMATIC PXS410 SONAR SENSOR COMPACT SERIES M30 K3 24V DC, SN=200...1300MM 1 NO, 300MA, PNP, 0...10V M12 CONNECTOR, 5-POLE, TYPE G NICKEL-PLATED BRASS,...
Siemens Circuit Breakers
SIMATIC PXS410 SONAR SENSOR COMPACT SERIES M30 K3 24V DC,, SN=600...6000MM 1 NO, 300MA, PNP, 4...20MA M12 CONNECTOR, 5-POLE, TYPE G, NICKEL-PLATED BRA...
Siemens Circuit Breakers
SIMATIC PXS410 SONAR SENSOR COMPACT SERIES M30 K3 24V DC, SN=60...300MM 1 NO, 300MA, PNP, 0...10V M12 CONNECTOR, 5-POLE, TYPE G NICKEL-PLATED BRASS, I...
Siemens Circuit Breakers
SIMATIC FS620I LASER SCANNER TYPE 3 HORIZONTAL 4 M PROTECTION FIELD TRANSISTOR 70, 150 MM 4 PROTECTION FIELDS
Siemens Circuit Breakers
LIGHT CURTAIN TYPE 2 STANDARD RECEIVER 30 MM 600 MM FUNCTION W. EVALUATION UNIT 0.3 TO 6 M M12 CONNECTION TRANSISTOR
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