The Phoenix Contact 2313685, also known as QUINT4-PS/1AC/24DC/3.8/SC, is a high-performance DIN rail power supply from the fourth generation of the QUINT POWER family. It is engineered to ensure maximum system availability and reliability for critical industrial applications. This unit features advanced technologies such as Selective Fuse Breaking (SFB), which provides up to six times the nominal current for 15 ms to trip standard circuit breakers quickly and selectively. Additionally, its preventive function monitoring warns of critical operating states before faults occur, enhancing operational safety. The power supply can be easily configured via an NFC interface, allowing for precise adjustment of signaling thresholds and output voltage characteristics. Its compact design and high efficiency make it a superior choice for modern automation systems.