AFCI Combiner Box (Arc Fault Circuit Interrupter Combiner Box) is a critical component in photovoltaic (PV) solar power systems that integrates arc fault protection with the traditional functions of a PV combiner box.
AFCI functionality identifies and distinguishes hazardous arc faults (caused by damaged wires, loose connections, etc.) from normal electrical behavior. Upon detection of such faults, it trips the circuit and prevents continuous arcing that could lead to fire risks.
DC Arc-Fault Detection and Interruption
Up to 1500V DC System Support
Up to 32 Detection Channels
Audible and Visual Alarm
RS485 Communication
Manual and Automatic Reset
Outdoor Stainless Steel Enclosure
Max. DC Voltage: 1000V
Input Strings: 8,12,16
Output Strings: 1 string
Max. Input Current (per string): 15A/20A/25A/30A
Max. Output Current: 100-400A
Surge Protection: Type 2, 40kA
Enclosure Options:Full-plastic sealed box or Powder-coated stainless steel
Voltage monitoring range: 450-1000VDC
