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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
SIRIUS SOFT STARTER, VALUES WITH 400 V, 40 DEG., STANDARD: 356A, 200KW, INSIDE-DELTA CIRCUIT 3: 617A, 355KW, 200-460 V AC, 230 V AC, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, VALUES WITH 460 V, 50 DEG., STANDARD: 385A, 300HP, INSIDE-DELTA CIRCUIT 3: 667A, 600HP, 200-460 V AC, 115 V AC, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, VALUES AT 460V, 50 DEG., STANDARD: 494A, 400HP, INSIDE-DELTA CIRCUIT 3: 856A, 750HP, 200-460V AC, 115V AC, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, VALUES AT 575V, 50DEG., STANDARD: 494A, 500HP, INSIDE-DELTA CIRCUIT 3: 856A, 950HP, 400-600V AC, 115V AC, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, VALUES AT 575V, 50DEG., STANDARD: 615A, 700HP, INSIDE-DELTA CIRCUIT 3: 1065A, 1200HP, 400-600V AC, 115V AC, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, VALUES AT 460V, 50DEGREES, STANDARD: 850A, 750HP, INSIDE-DELTA CIRCUIT 3: 1472A, 1300HP, AC 200-460V, AC 115V, SCREW TERMINALS
Siemens Circuit Breakers
AS-INTERFACE POWER SUPPLY UNIT WITH DATA DECOUPLING, IP65 DC 30V, 2.4A
Siemens Circuit Breakers
AS-I POWER2.6A, MAX. 100 W, 120V/230V AC, IP20, AS-INTERFACE POWER SUPPLY, IN: 120V/230V AC, OUT: AS-I, 2.6A (30V DC), LIMITING OF OUTPUT POWER MAX. 1...
Siemens Circuit Breakers
TWO-HAND OPERATION CONSOLE FOR CONTROL DEVICES, 22MM, ROUND, ENCLOSURE MATERIAL METAL, ENCLOSURE TOP PART GRAY, 3 COMMAND POINTS, STANDARD EQUIPMENT: ...
Siemens Circuit Breakers
STAND F.TWO-HAND OPER.CONSOLE WITH BREAK-THROUGHS FOR METRIC CABLE GLANDS
Siemens Circuit Breakers
SIRIUS CABLE-OPER. SWITCH METAL HOUSING,1X M16X1.5, 1NO+1NC, LATCHES AC.EN ISO13850 BUTTON RESET, WITH LED-LAMP 24VDC, RED
Siemens Circuit Breakers
SIMATIC FS620I LASER SCANNER TYPE 3 HORIZONTAL 4 M PROTECTION FIELD ASISAFE 70, 150 MM 4 PROTECTION FIELDS
Siemens Circuit Breakers
SIMATIC FS620I LASER SCANNER TYPE 3 HORIZONTAL 4 M PROTECTION FIELD PROFISAFE 70, 150 MM 4 PROTECTION FIELDS
Siemens Circuit Breakers
CONTACTOR,SIZE 6,3-POLE AC-3, 55KW, 400/380V AUXILIARY CONTACTS 22 (2NO+2NC) DC SOLENOID SYSTEM DC 24V
Siemens Circuit Breakers
CONTACTOR SIZE 8,3-POLE AC-3, 90KW, 400/380V AUXILIARY CONTACTS 22 (2NO+2NC) DC SOLENOID SYSTEM DC 24V
Siemens Circuit Breakers
CONTACTOR SIZE 10, 3-POLE AC-3, 132KW, 400/380V AUXILIARY CONTACTS 22 (2NO+2NC) DC SOLENOID SYSTEM DC 24V
Siemens Circuit Breakers
CONTACTOR, SIZE 2, 2-POLE DC-3 AND 5,RATD.OPERAT.CURR.32A AUXILIARY CONTACTS 22 (2NO+2NC) DC OPERATION DC 110V
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