The BFS-21 is designed and developed as the most reliable module level rapid shutdown device for solar building fire safety and meeting the NEC requirements.
Operates SINGLE standard PV module (>=40V) or TWO modules (<40V).
The BFS-21 complies with NEC 2017&2020 690.12 rapid shutdown requirements when work with the SunSpec signal transmitter BFT-01 or an inverter with built-in transmitter, in non-interference with the inverter AFCI.
| BFS-21 Specifications | |
| Electrical | |
| Range of Operating Voltage | 120V input |
| Max Operating Current (A dc) | 18A |
| Max Input Power (W) | 2160W total |
| Max array short circuit current (A dc) | 18A |
| Output DC Voltage (V dc) | 120V |
| Rated Max output current (A dc) | 18A |
| Communication |
PLC (DC Power Line)
SunSpec certificate Microsecond response RSD |
| Mechanical | |
| UL 50 E Enclosure Type Rating | 4X |
| Connectors |
MC4 (standard)
Jinko connectors for option |
| Input cable length | 180mm |
| Output cable length | 1800mm |
| Weight | 600g |
| Environmental | |
| Operating Temperature |
-40°C– +80°C
|
| Ambient Operating Temperature |
-40°C — +55°C
|
| Over Temperature Protection | 85°C |
| Certificate and Standards |
UL1741 PVRSS and PVRSE listed
NEC 2014/2017/2020 690.12 |
| Warranty | BFS-21: 25 Years |
