The circuit breaker is the automatic fuse for short circuit protection. Siemens circuit breakers are an important component of the SENTRON protection devices for electrical installations and provide effective protection for people and equipment by safely disconnecting in the event of overload or short circuit. Convenient mounting and connection technology, uniform additional components, and a consistent design are the hallmarks of this device family. Whether for infrastructure or industrial applications, Siemens offers circuit breakers for all uses and every area of application. Siemens circuit breakers are particularly characterized by: 1. Effective protection for people, investments, and equipment against overload and short circuit. 2. Uniform accessories in a wide variety, easy to install and always interchangeable. 3. Reliable safety during installation thanks to standard integrated gripping and touch protection. 4. Tool-free removal from the DIN rail.