PowGrow PV Combiner Box: Enhancing Efficiency and Safety in Solar Panel Systems

PowGrow PV Combiner Box: Enhancing Efficiency and Safety in Solar Panel Systems


The PowGrow PV Combiner Box is a revolutionary product designed to streamline the connection between PV modules and inverters, making maintenance easier and improving overall system reliability. By using the PV Combiner Box, users can connect a specific number of PV modules with the same specifications in series, creating a series of PV modules based on the DC voltage range of the inverter input. This innovative solution offers numerous benefits for both on-grid and off-grid solar panel systems.


1. Safety Protection

The PV Combiner Box is equipped with a high-voltage fuse and circuit breaker, providing two levels of safety protection. Each individual PV input array has a maximum current of 10A and is built-in with six 15A rated fuses, ensuring overload protection.

2. Lightning Protection

The PV Combiner Box is installed with a professional high-voltage lightning arrester, offering both positive and negative pole protection against thunder. This feature enhances the safety and reliability of the system, protecting it from potential lightning strikes.

3. Reliable Output Control

A professional high-voltage Air Circuit Breaker is integrated into the PV Combiner Box to control the output. This circuit breaker provides anti-circuit protection, making the system more reliable and safe.

4. Pre-Wired Cable

All the necessary wires are pre-wired in the box, using high-quality wires specifically designed for solar systems. This feature simplifies the installation process and ensures optimal performance.

5. Heat Dissipation

Heat Insulation Devices are placed between the Fuse Holder, Surge Protective Device (SPD), and Circuit Breaker, increasing the installation distance between them. This design improves heat dissipation, preventing overheating and enhancing the overall efficiency of the system.

6. Waterproof and Anti-Rust

The PV Combiner Box is equipped with a waterproof and anti-rust lock, preventing unauthorized access. The box is designed with a durable metal construction, making it suitable for outdoor use and ensuring a longer lifespan compared to PVC plastic alternatives.

Technical Parameters

– Max. Input current of single PV array: 10A
– Total input current of PV array: 60A
– Max. Input voltage of single PV array: 400DCV
– Max. Output power voltage: 400DCV
– Working temperature: -22°C to 158°C
– Working humidity: 0-95%
– Surge Protective Device (SPD) parameters: In: 20kA, Imax: 40kA, Up: 2.2k
– SPD Indicate light status: Green (Normal), Red (Triggered)
– Air circuit breaker parameter: 500V, 63A; ON/OFF
– Fuse parameter: DC1000V, 15A
– Fuse holder parameter: DC1000V, 20A
– Waterproof rating: IP65
– Dimensions (LxWxH): 13x11x5 inches
– Item weight: 5.2kg


The PowGrow PV Combiner Box is an essential component for both on-grid and off-grid solar panel systems. With its advanced safety features, reliable output control, pre-wired cables, and durable construction, it ensures the efficient and safe operation of your solar power generation system. By optimizing system performance and simplifying maintenance, the PV Combiner Box maximizes the output power of your PV system, making it an indispensable tool for any solar energy enthusiast.