Configuration: 2-String (Dual independent PV strings)
Max Voltage: 1500VDC
Max Current: 55A (800VDC), 50A (1000VDC), 40A (1200VDC), 30A (1500VDC)
DC Connectors: MC4 (4 wiring points)
Protection Rating: IP65
Housing Material: PC+ABS
Operating Temperature: -20℃ to +70℃
Auto-Shutdown: Activates at 70℃
Standards Compliance: EN60947-3
EKFS-50-2 is a professional Rapid Shutdown Device engineered for photovoltaic systems with dual-string configurations. Serving as a critical Firefighter Safety Switch, this 2-String model provides simultaneous DC isolation for two independent PV strings during emergencies. With a robust 1500VDC rating and 50A capacity per channel, it delivers reliable protection for commercial and industrial-scale installations.
Featuring automatic thermal shutdown at 70°C and IP65 environmental protection, the EKFS-50-2 supports easy integration via industry-standard MC4 connectors. Its dual-channel design optimizes safety for complex PV arrays while ensuring compliance with the latest rapid shutdown standards.
Applications
• Commercial solar installations with multiple strings
• Industrial-scale PV systems
• Large residential arrays with dual-string configurations
• Solar farms requiring redundant string isolation
• Government/municipal solar projects
|
Model |
EKFS-50-2 |
|
No. of strings |
2 |
|
Max. string voltage |
300-1500VDC |
|
Max. string current |
55A(800VDC), 50A(1000VDC), 40A(1200VDC), 30A(1500VDC) |
|
Switch wiring |
4 |
|
DC connector |
MC4 |
|
Power supply type |
AC single phase |
|
Operating voltage |
100-270VAC |
|
Nominal voltage |
230VAC |
|
Operating frequency |
47-53 Hz |
|
Nominal frequency |
50 Hz |
|
Nominal current |
30mA |
|
Start up (loading) current |
100mA (AWG) |
|
Switch on action current |
300mA |
|
AC connector |
Plug-in |
|
Protection degree |
IP65 |
|
Protection level |
Class II |
|
Switch according to |
EN60947-3 |
|
Mechanical endurance |
9700 |
|
Electrical endurance |
300 |
|
Operating temperature |
-20°C ~ 70°C |
|
Storage temperature |
-40°C ~ 85°C |
|
Max. temperature for automatic shutdown |
70°C |
