The solar power system, array junction box has smart and non-smart two types. The smart lightning-protection pv combiner box has built-in combiner monitoring unit that monitors the input voltage of each PV string, collective output voltage, temperature inside the box, as well as the status of lightning protector and circuit breaker, etc. We also supply PV Intelligent Lightning Protection array junction box.
The IP66 design is used for outdoor installation
MC4 compatible input/output connectors for easy installation
DC fuse for each PV string with fuse links meet PV standard
DC Isolator or DC MCB for isolating or over-voltage protection with inside operation
Anti-lighting and surge protector only for PV
Each channels has 6 sets of input/output connectors
The enclosure is made by polycarbonate and ABS, anti-UV or Stainless steel material
Input channel number
Less than 8
Max. input voltage
Input current of each
Max. output current
Less than 100A
Detect current of each channel, bus voltage, status of circuit breaker and lightning protector,
RS485 bus/standard MODBUS-RTU protocol
Can be equipped with modularized and encapsulated prevent-reverse diode (optional)
Operating temperature: -40~+85°C, humidity 95%, places free of dew or corrosive gas.
Power consumption of
Auxiliary power supply
Auxiliary power supply: AC85V~265V/DC24V(±10%)/DC200V~1000V
Hot galvanized steel/stainless steel/cold rolled sheet/engineering plastics
PV convergence, current anti-reverse protection, overcurrent, overvoltage protection, lightning protection.
Our combiner box has above function, and also could match with PV grid tie inverter and off grid inverter to compose one complete PV generating system.
When choosing PV combiner box, user could connect solar panels in parallel or in series to place in combiner box according to inverter’s input voltage range, output power, then go through breaker and surge protection to work with inverter.