What is Solar Connector?

With the continuous improvement of social industry and demand, different photovoltaic connectors have emerged in the market. It has become a difficult choice for customers to choose a product that suits them.Through the following introduction, Zhejiang Zhenghao fuse devices allow everyone to truly understand what a photovoltaic connector is, how to determine their own needs, and no longer worry.

What is a solar connector?

    Photovoltaic connectors are key components used for relay electrical connections in solar photovoltaic systems, mainly responsible for reliable connections between photovoltaic modules and other system components (such as inverters, charging point controllers, etc.), ensuring efficient transmission of electrical energy and maintaining system stability.

Types of Solar Connectors

Different types of solar connectors are available today, each with different design characteristics. Based on their features and other factors such as brand name, these connectors are sold in many variations. Here, we’ll look at the five main solar panel connector types and what you should know about them. These are: MC4, MC3, Tyco, Amphenol, and Radox.

1、MC3 solar Connectors

    This is the predecessor of the MC4 connector, or an older version of the MC4 connector. The main difference between these two types of solar connectors is the size of the metal contacts. MC3 uses 3mm contacts, while MC4 uses 4mm contacts.

In addition, unlike MC4, MC3 solar connectors do not use a safety locking mechanism. This means that the connection is not as secure as the MC4 connector. However, it is still suitable for smaller solar installations. In these systems, their less secure connections may not be a major concern.

You may also find this type of connector in the old panel. It is worth noting that although MC3 solar panel connectors are being used in some photovoltaic systems or panels, many manufacturers have stopped production and are now producing their successors.

2、MC4 Solar Connector

    MC4 is the most common type of solar photovoltaic connector used today, designed to ensure safe connections between solar panels or solar cables. The letter MC means' Multi Contact ', which is the name of the company that originally produced them.

On the other hand, the number 4 represents the 4mm contacts that come with the connector. MC4 connectors come in two types: male and female, both with locking mechanisms that ensure a secure connection once connected together.

MC4 solar connectors also have an IP rating, which means they are specifically designed for outdoor use and can resist UV radiation and various elements. MC4 is also compatible with most solar modules today, making it a favorite among installers. They are also the best solar connectors for large-scale installation.

3、Amphenol Connector

    These types of solar connectors are named after the companies that manufacture them. Like Tyco and MC4 connectors, they use a locking mechanism to provide a secure connection between two modules or panels.

Amphenol solar connectors also have waterproof sealing, making them suitable for outdoor applications and have an IP rating. This means you can use it under outdoor conditions.

Moreover, although the connection method of Anfeno photovoltaic connectors is different from most other connectors, you can still quickly assemble solar cables, and they can produce windproof and safe connections.

4、Radox Connector

    Radox connectors are the most commonly used type of solar connectors in Europe and are not popular in other parts of the world because they mostly comply with European electrical standards. Like other types of solar connectors, its name comes from the company that first manufactured it.

In terms of design features, Radox solar connectors are equipped with high-strength housings that can resist moisture, dust, ultraviolet radiation, and other harsh outdoor conditions. However, unlike most other solar connectors that use plug locks, it is equipped with a twist lock that does not require tools to unlock.

Radox solar connectors use a system to ensure safe and long-lasting connections. More importantly, it uses high-quality contacts made of beryllium copper, which is known for its excellent conductivity.

5、Tyco solar Connector

    The Tyco solar connector derives its name from the company that produces it. It’s typically a two-part connector which consists of an outer shell and an internal contact block, both made up of durable plastic material.

These types of solar connectors are basically a variant of the MC4, with one key difference; they use crimp technology to provide the connection between solar cables and components. They are also IP rated and come in male and female variants.

Like the MC3 version, these types of solar connectors are also not popular anymore. In their place, most installers now prefer to use the MC4 connectors instead.

Conclusion

    These are the five main types of solar connectors available today.Given their different design characteristics and other features,it’s important that anyone looking to install a solar PV system knows the differences between them so that they can make an informed decision. That’s because while some types may be more popular than others,the best choice for your system will ultimately depend on your specific requirements.