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
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