Basic Info
Certification
ISO9001:2000
Operation Voltage
Low Voltage
Application Range
Power Plants
Shell Protection Grade
IP40
Mounting
Embedded, Surface
Specification
4, 7, 10, 12, 14, 16, 18, 20way
Production Capacity
10000PCS/Month
Product Description
The combiner box is a wiring device in the photovoltaic power generation system that ensures the orderly connection and confluence function of photovoltaic modules. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the range of power outage in case of photovoltaic system failure. The combiner box means that the user can connect a certain number of photovoltaic cells with the same specification in series to form a photovoltaic tandem, and then connect several photovoltaic tandem to the photovoltaic combiner box in parallel. After converging in the photovoltaic combiner box, through the controller, DC distribution cabinet, Solar inverter, and AC distribution cabinet, a complete photovoltaic power generation system can be formed to achieve grid connection with the mains.
Product Features
High reliability: With DC FUSE/With DC SPD/With DC circuit breaker or DC load isolation switch.
- IP65 design, waterproof, anti dust and anti ultraviolet. Strict test for high and low temperature, used widely.
- The simple installation, the simplified system wiring, the convenient wiring.
- The box body is made of cold rolled steel and other metal materials. Used for single crystal silicon solar modules, polycrystalline silicon solar modules, thin film solar modules. Current rating of the photovoltaic fuse, circuit breaker, load isolation switch is modified.
| System maximum dc voltage |
1000V DC |
| Maximum input current for each string |
15A |
| Maximum input strings |
1 |
2 |
3 |
4 |
6 |
| Maximum output switch current |
32A |
32A |
32A |
63A |
125A |
| Maximum output switch current qty |
1 |
1 |
1 |
1/2 |
1/2 |
| Max. PV voltage (d.c.) (Ucpv) |
1000V DC |
| Max. discharge current (8/20 µs) (Imax) |
40kA |
| Voltage protection level (Up) |
4.0kV |
| Protection grade |
IP65 |
| Output switch |
DC MCB(optional)/DC isolation switch(standard) |
| Waterproof Connectors |
PG/MC4 |
| Monitoring module |
Optional |
| Box material |
PVC |
| Installation method |
Wall mounting type |
| Operating Temperature |
-25 °C ... +55 °C |
| Permissible relative humidity |
0-95%, no condensation |
Frequently Asked Questions
What is the function of a PV combiner box in a solar system?
A PV combiner box functions as a wiring device that gathers the output of multiple solar module strings in parallel. This simplifies system wiring, makes the system easy to cut off during maintenance, and protects the system by reducing power outage range in case of a fault.
What components are integrated into the combiner box for system safety?
It features high-reliability protective components including DC fuses, DC surge protective devices (SPD), and DC circuit breakers or DC load isolation switches to safeguard the circuit against overcurrent and lightning strikes.
What is the protection rating and is it suitable for outdoor environments?
Yes, the box features an IP65 protection grade. It is designed to be waterproof, dustproof, and anti-ultraviolet, having undergone strict high and low-temperature tests to ensure long-term outdoor stability.
What type of solar modules are compatible with this PV combiner box?
It is compatible with single crystal silicon solar modules, polycrystalline silicon solar modules, and thin-film solar modules. The current ratings of components can be modified according to specifications.
What is the maximum DC voltage and temperature range supported?
The combiner box supports a maximum DC system voltage of 1000V DC. It operates reliably in temperatures ranging from -25 °C to +55 °C under a relative humidity of 0-95% (no condensation).
Zeno Electric
