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Take control of your solar energy system with our Solar Combiner Box – the reliable and efficient solution for maximizing power output.

Certified by SGS

TOSUNlux Solar Combiner Box

TOSUNlux Solar Combiner Box is a device that simplifies the connection of multiple strings of solar panels in photovoltaic (PV) systems. The device combines multiple source circuits from a PV array into a single or multiple DC output through a touch-safe fuse holder.

Each source circuit is individually fused for added safety. The combiner box typically houses overcurrent protection devices, such as fuses and circuit breakers, as well as PV system monitoring equipment. It is available in both ABS+PC or metal materials and is designed for wall-mounted installation.

IP65 Waterproof Distribution Board

TOSUNlux is a company that offers a solar combiner box collection. 

HA series Certified by SGS
HT series

Why Choose Tosunlux Brand?

Multiple Product Lines

We are a company that offers a full range of safe and reliable low-voltage electrical distribution products and lighting products.

Quality and Certification

TOSUNlux’s power supply units are high-performance, reliable, and innovative, making them suitable for the most demanding industrial applications.

More Safety

TOSUNlux Low Voltage Products and Systems fulfill users’ needs for power, safety, and convenience, providing constant proof of their reliability in residential and commercial buildings, industry, power plants, machinery, and equipment of all kinds on every continent.

30 Years Experience

TOSUNlux is a trusted brand for power distribution because of our experience in providing innovative products and solutions for over 30 years.

Perfect dealer system

We understand the demands of the marketplace and work with distributors to achieve the highest quality customer service.


TOSUNlux ‘s Sevice experience helps simplify processes, reduce costs, and increase production, which can help customers run their operations faster, more safely, and at a lower cost.

About TOSUNlux

TOSUNLUX is a manufacturer of solar PV combiner boxes. These boxes combine the input from multiple strings of solar panels and provide protection against overvoltage and overcurrent.

We offer the HA Series Distribution Board, which is certified by SGS as having a standard IP65 waterproof rating. This board offers excellent waterproof performance, making it a reliable choice for various applications.

Quality and Certification

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all your questions

Here are some frequently asked questions about TOSUNLUX Waterproof Distribution Board:

Using a waterproof distribution box has several benefits, including:

  1. Protection against water damage – Waterproof distribution boxes are specifically designed to protect sensitive electronic components and assemblies from water damage in harsh indoor and outdoor environments. They are tested to meet IP ratings to ensure they can withstand wet conditions and provide a dry environment for the electrical components inside.

  2. Enhanced safety – With additional protection against potential shortages and electrical hazards, a waterproof distribution box ensures a safer working environment and reduced risk of electrical accidents.

  3. Durability – High-quality waterproof distribution boxes are built to withstand varying weather conditions and other environmental impacts, extending their use and life span.

  4. Easy installation – They are equipped with wire grooves and wire pipe openings, making them easy to use and install.

  5. Versatile use – Waterproof distribution boxes are widely used in various applications, including factories, mansions, residences, and shopping centers, offering a safe and reliable option for any type of environment.

  6. Longer lifespan of electrical components – By protecting electronic components from potential moisture damage, a waterproof distribution box ensures the efficiency of electrical components, making them more durable in the long run.

An IP65 rated enclosure is a type of electrical enclosure that has been designed to provide a high level of protection against dust and water. IP, or Ingress Protection, ratings are defined by the International Electrotechnical Commission (IEC) and indicate the level of protection that an enclosure provides against a range of environmental factors.

In the case of an IP65 rated enclosure, the “6” indicates that the enclosure offers complete protection against dust, while the “5” indicates that it is protected against low pressure water jets from any direction. This means that the enclosure is completely dust-tight and can withstand low-pressure water jets, making it suitable for use in harsh environmental conditions.

IP65 rated enclosures are commonly used in outdoor applications such as traffic management systems, solar energy systems, and telecommunications equipment. They may also be used for indoor applications where protection against dust and moisture is required, such as in commercial kitchens or factories.

It is important to note that IP ratings only apply to the enclosure itself and not to any electrical equipment or devices that may be housed within it. Therefore, it is important to ensure that any equipment within an IP65 rated enclosure is also designed to meet the required level of protection.

More About IP65, you can click here

The number of ways an IP65 waterproof distribution box can hold may vary depending on the specific model and design of the box. In general, an IP65 waterproof distribution box can come with multiple ways, meaning it can hold multiple electrical circuit breakers or other electrical components.

For example, some models can hold up to 4, 6, 8, or 12 ways, although larger models that can hold even more ways may also be available. When selecting an IP65 waterproof distribution box, it is important to consider the number of ways that you will need for your specific application and to ensure that the box has the appropriate number of inputs and outputs for your electrical system.

It is also important to ensure that the distribution box meets all relevant industry standards for safety and performance, such as UL, SGS and IEC certifications, in addition to having an IP65 waterproof rating. By selecting a distribution box with the appropriate number of ways and certifications, you can ensure that your electrical system is safe, efficient, and properly protected from water damage.

TOSUNlux offer the HA Series Distribution Board, which is certified by SGS as having a standard IP65 waterproof rating.



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We understand the demands of the marketplace and work with distributors to achieve the highest quality customer service.



Our IP65 Waterproof Distribution Boxes are designed to provide protection for sensitive electronic assemblies in harsh indoor and outdoor environments. Tested to IP65 standards, these boxes are safe for use in wet conditions. These boxes are available in anti-UV ABS and PC and feature wire grooves and wire pipe openings, making them easy to install and use.

The internal base is equipped with a guide rail to horizontally fix the circuit breaker or other electrical components, enhancing durability and longevity. These boxes have a wide range of applications, including factories, mansions, residences, and shopping centers.


We Help Your Business to Connect and Grow on Large Scale

TOSUNlux has its own design team with a 5-people in-house design team, which provides 4-5 new series of products every year for our clients.

A Guide to Solar Combiner box


A Solar Combiner Box is an essential component of any solar energy system where multiple solar panels need to be connected to a single output. The combiner box simplifies the installation process and ensures that the power generated by the individual solar panels is maximized while also providing safe connections between the panels.

Here are some key features of a Solar Combiner Box:

1. Combines the output of multiple solar panels – the combiner box combines the output of individual solar panels, allowing you to effectively manage the energy generated by them.

2. Provides overcurrent protection – the box typically includes fuses and circuit breakers, which provides overcurrent protection in case of potential short circuits in the system.

3. Enhances safety – the touch-safe fuse holders offer increased safety for installers and users of the solar system, while also providing safe connections between the panels.

4. Monitoring capabilities – some models of Solar Combiner Box come with built-in monitoring equipment that can help track the performance of the panels and the overall system.

5. Durable – the combiner box is usually made of sturdy materials like ABS, PC, or metal, which offer excellent durability and resistance to harsh weather conditions.

When choosing a Solar Combiner Box, it is important to ensure that it meets the requirements of your solar energy system. Look for a model that provides the right number of inputs and outputs for your panels, is certified to meet relevant industry standards such as UL and IEC, and has features like overcurrent protection to ensure safety and efficient operation.


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