Fonrich rapid shutdown system can realize high-temperature detection and automatic shutdown, arc fault detection, automatic shutdown, electric leakage detection, and automatic shutdown. High-speed two-way PLC communication function. Humanized design by professional engineers, easy to install. It has a data monitoring function and displays data through LCD. Meets NEC 2017 and 2020 (690.12) requirements. Each head-end module can support up to 12 strings. Backed by 25 IP patents, the Internet of Things gateway can be connected to the cloud through WIFI, RJ45, and 4G.