FILS for combined short-circuit protection and touch protection. FI line protection device Type A, PSESSF, T=70mm 30mA, 10kA, 1N-pole 25A B-characteristic. The patented FILS switches from Siemens, as an essential component of the SENTRON protection devices for electrical installations, enable combined personal, fire, and line protection in just one device. In addition to detecting fault currents, they also provide reliable protection against short circuits and overloads thanks to the integrated overcurrent protection device. The Siemens FILS switches, as a combination of residual current and circuit breakers, are characterized by: 1. Increased operational safety and system availability due to separate disconnection of the affected circuit. 2. Whether sinusoidal alternating fault currents or smooth direct fault currents, Siemens offers the suitable type for all requirements as well as special versions. 3. The data matrix code on the front of the device provides quick and easy access to all information regarding the FILS switch. 4. Be compliant with standards: The FILS switches meet the requirements of DIN VDE. 5. Optimal technology for your safety, exclusively from Siemens. Siemens offers a comprehensive portfolio of protection, switching, measuring, and monitoring devices, installation distributors, as well as switches and sockets for a safe and efficient electrical infrastructure in buildings and industry. 5SU1354-6KK25.