The BFS-21 is designed to safely disconnect one standard solar module (≥40V) or two smaller ones (<40V) in the event of a fire or other emergency. It meets the requirements of the 2017 and 2020 NEC for building fire safety and is compatible with the BFT-01 transmitter.

  • shutdown panel to 0V at microsecond  
  • no need for external power supply as with BFS 11/12
  • simple plug and play Plug and Play installation 
  • PLC control signaling
  • PVRSS with multiple inverters
  • Overheating protection with automatic shutdown

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BFT-01 Dual Core – transmitter for BFS

  • transmitter for wireless connection of BFS-21 disconnectors
  • up to 5 strings per core (max. 100A)
  • max. 30 PV modules per string
  • The maximum length from + to - of the inverter is 300m

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