FI/LS switch, 10 kA, 1P+N, type A, 30 mA, B-Char, in: 6 A, UN AC: 230 V FI/LS for combined short-circuit protection and touch protection. Siemens' patented FI/LS switches - as an important component of SENTRON electrical protection devices - enable combined personal, fire and line protection in one device. In addition to the detection of residual currents, they also offer reliable protection against short-circuit and overload thanks to the integrated overcurrent protection device. The Siemens FI/LS switches as a combination of residual current and miniature circuit breakers are characterized above all by: 1. Increased operational safety and plant availability thanks to separate shutdown of the respective circuit. 2. Whether sinusoidal AC fault currents or smooth DC fault currents, Siemens offers the right type and special versions for all requirements. 3. Reliable safety during installation thanks to the standard included comprehensive and touch protection. 4. Tool-free release from th