The fire protection switch with SIARC technology and integrated circuit breaker in a single division unit. The proven fire protection switch from Siemens is an essential component of the SENTRON protection devices for electrical installations, providing safety against dangerous arc faults. No other protective device, whether a circuit breaker, residual current device, or fuse system, can detect this danger as reliably. Arc faults can occur due to loose contacts or insulation failures and can cause dangerous fires. Fire protection switches detect disturbances early and safely disconnect before a fire starts. The fire protection switch (AFDD) with integrated circuit breaker in just one division unit reliably protects against dangerous arc faults, overloads, and short circuits. The Siemens fire protection switch is characterized by: 1. Compact design with only 18 mm width (1TE). 2. Protection against dangerous arc faults, overloads, and short circuits. 3. Reliable and comprehensive protection for people, systems, and assets. 4. Technical excellence in fire protection by covering the previous protection gap. 5. Easy installation and distribution thanks to compact busbars. 6. Proven North American technology, tailored for the European market. 7. Scan the data matrix code on the device to quickly and easily access all information about the fire protection switch. 8. Optimal technology for your safety, exclusively from Siemens. Siemens offers a comprehensive portfolio of protection, switching, measuring, and monitoring devices, distribution systems, as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.