The Arc Safety Protection Box continuously monitors photovoltaic strings for fault arcs. Upon detecting a fault arc, it immediately emits an alarm signal through a local indicator light and quickly drives a switch to disconnect the inverter from the PV DC string, ensuring the PV DC loop is in a no-current state for a short time, effectively extinguishing the arc. Utilizing Fonrich’s patented arc extinguishing technology, it significantly protects against property or personnel loss without impacting normal energy generation, thoroughly addressing the occurrence of photovoltaic fire incidents.

Main Features:

1. Accurate detection of DC arc faults in strings
2. Maximum design of 16-channel arc detection
3. 1100V system voltage
4. RS485/Modbus RTU communication mode
5. Supports expanded DTU network remote monitoring
6. IP66 dust and water protection rating