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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, SIZE S2, 45 A, 22 KW / 400 V, AC 200...460 V, UC 24 V, SCREW CONNECTION
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Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S2, 45 A, 22 KW / 400 V, AC 200...460 V, UC 110...230 V, SCREW CONNECTION
Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S3, 63 A, 30 KW / 400 V, AC 200...460 V, UC 24 V, SCREW CONNECTION
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Siemens Circuit Breakers
SIRIUS SOFT START, SIZE S3, 63 A, 30 KW / 400 V, AC 200...460 V, UC 110...230 V
Siemens Circuit Breakers
SIRIUS CUSHIONED STARTER SIZE S3, 63 A, 37 KW / 500 V AC 460...575 V, UC 110...230 V SCREW CONNECTION
Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S3, 75 A, 37 KW / 400 V, AC 200...460 V, UC 24 V, SCREW CONNECTION
Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S3, 75 A, 37 KW / 400 V, AC 200...460 V, UC 110...230 V, SCREW CONNECTION
Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S3, 75 A, 55 KW / 500 V, AC 460...575 V, UC 110...230 V, SCREW CONNECTION
Siemens Circuit Breakers
SIRIUS SOFT STARTER, SIZE S3, 100 A, 55 KW / 400 V, AC 200...460 V, UC 24 V, SCREW CONNECTION
Siemens Circuit Breakers
ELECTRON. MOTOR CONTROL UNIT, VALUES WITH 55 DEGREES, STANDARD: 80 A, INSIDE-DELTA-3: 156 A, 200-460 V AC, 115 V AC
Siemens Circuit Breakers
ELECTRONIC MOTOR CONTROLLER VALUES AT 400V, 40 DEGREES INSIDE-DELTA: 191A, 110KW, STANDARD: 110A, 55KW, AC 200-460V, AC 230V
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S0, 25A, 15KW/500V, 40 DEGR., AC 400-600V, AC/DC 24V, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S0, 32A, 15KW/400V, 40 DEGR., AC 200-480V, AC/DC 110-230V, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, 38A, 18.5KW/400V, 40 DEGR., AC 200-480V, AC/DC 110-230V
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S2, 45A, 22KW/400V, 40 DEGR., AC 200-480V, AC/DC 24V, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S2, 45A, 22KW/400V, 40 DEGR., AC 200-480V, AC/DC 110-230V, SCREW TERMINALS
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S2, 63A, 30KW/400V, 40 DEGR., AC 200-480V
Siemens Circuit Breakers
SIRIUS SOFT STARTER, S2, 72A, 37KW/400V, 40 DEGR., AC 200-480V, AC/DC 110-230V
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