Siemens 5SX2318-7 Circuit Breaker

Siemens 5SX2318-7 Circuit Breaker is a three-pole protective device in the Siemens 5SX2 family, identified by part number 5SX2318-7. This 15 A unit (C15) interrupts current on overload or fault conditions to protect wiring and equipment in industrial control panels. The 3P configuration supports protection of three phases, making it suitable for small to medium three-phase motor circuits and other line-side protection in machine controls. As part of Siemens’ motor-protection circuit-breaker lineup, it integrates with standard Siemens protection schemes and can be used in panelboards, controller cabinets, and starter assemblies where compact, reliable overcurrent protection is required. Key details include its 15 A current rating (C15) and three-pole construction, with the Siemens build aimed at industrial environments. Typical applications include drives, conveyors, pumps, and other three-phase equipment where consistent performance and straightforward reset are needed. It is designed to be used with Siemens protection and control systems that use the 5SX family, offering straightforward integration into existing Siemens control architectures.