Zeno Electric
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In solar power systems, the PV combiner box is essential between the solar panels and the inverter to decrease connecting lines, ease maintenance, reduce losses, optimize system structure, and improve safety and reliability.
Beyond combining lines, it features reverse current prevention, over-current, over-voltage, and lightning protection, while tracking running states, DC voltage, current, power, and breaker/arrester health.
Our PV combiner boxes are fully equipped with all safety functions and configure seamlessly with both on-grid and off-grid solar inverters to establish a complete power system.
Selection is based on the inverter's input DC voltage range and output power. Multiple panels connect in series as a string, and multiple strings connect in parallel to the combiner box.
Conforms to CGC/GF002:2010 PV Array Junction Box Technical Specifications.
Allows a maximum of 24 panel strings to connect; nominal voltage of each string is 10A (maximum 15A).
Total output current of 250A with a maximum system voltage of 1000Vdc.
High voltage fuse protection and anti-connection protection for each individual string.
Equipped with dedicated PV high-voltage surge arrester protection.
PV high-voltage circuit breaker control output (pressure-resistant DC1200V; fusing current optional).
Optimized for outdoor installation with an IP65 protection rating.
Isolated RS485 port for remote data communication, supporting the MODBUS-RTU protocol.
Built-in comprehensive alarm functions with programmable alarm parameters (on/off setting control).
Real-time harmful DC arc detection. Instantly triggers the trip switch to isolate faults and prevent fire disasters.
A PV combiner box connects multiple solar strings in parallel to simplify the wiring, optimize the overall system structure, reduce transmission losses, and increase setup safety and reliability between panels and the inverter.
This combiner box allows up to 24 strings to connect, supporting a nominal voltage of 10A (max 15A) per string, with a total output current of 250A and a maximum voltage capacity of 1000Vdc.
Yes, it features an isolated RS485 communication port that supports the standard MODBUS-RTU protocol, enabling real-time remote data transmission and status monitoring.
Absolutely. The junction box is constructed for outdoor deployment with a certified protection rating of IP65, providing robust weather and dust resistance.
The unit continuously monitors the DC circuit for harmful arcs in real-time. If an arc is detected, the alarm triggers and opens the trip switch to instantly cut off the faulty circuit, preventing potential fire hazards.
