DC SPDs for Photovoltaic

Discover the safety of photovoltaic systems with DC arresters

Welcome to the section dedicated to DC arresters for photovoltaic on Elettroclick. Photovoltaic DC surge arresters are essential for the safety of solar-powered systems. Their main function is to protect the system from overvoltages and overcurrents, ensuring safe and reliable operation over time. Thanks to their ability to manage current fluctuations, they significantly contribute to reducing the risk of damage to the equipment, thus ensuring greater durability and efficiency of the photovoltaic system.

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DC arresters for photovoltaics: what they are and what they are for

DC surge arresters , or SPDs (Surge Protection Devices), are fundamental devices in photovoltaic systems to protect electrical components from transient overvoltages caused by lightning or other electrical phenomena. Surges can seriously damage the system's solar panels, inverters and other electronic equipment, causing service interruptions and high repair costs. DC arresters act as a safety valve, diverting surge voltages to earth and protecting the photovoltaic system from potential damage.

How to Choose the Unloader

Choosing the right DC arrester for your photovoltaic system depends on several factors. Here are some key considerations:

• System Voltage : Check that the arrester is compatible with the nominal and maximum voltage of the photovoltaic system. Solar systems can operate at different voltages, so it is important to choose an arrester suited to the working voltage.
• Protection Class : SPDs are classified based on their ability to handle different levels of overvoltage. Class 1 is suitable for discharging large amounts of energy, while Class 2 is designed for more moderate surges. Class 3 offers precision protection for sensitive equipment.
• Nominal Discharge Current (In) : This value indicates the amount of current that the arrester can handle continuously. Make sure the discharge capacity is adequate for the needs of your system.
• Ease of Installation and Maintenance : Choose a model that is easy to install and maintain. Some arresters offer plug-and-play modules that make installation and replacement easier.
• Regulations and Certifications : Make sure the device complies with international safety regulations and standards, such as IEC 61643-31.

Types of DC arresters

There are different types of DC arresters used in photovoltaic systems, each with specific characteristics and applications:

• Varistor arresters (MOVs) : Use varistors to limit voltage and divert surge voltages to earth. They are popular for their quick response and ability to automatically recover after turning off the surge.
• Gas Discharge Tube (GDT) Arresters : These devices use a gas-filled tube that ionizes when struck by a surge, causing a discharge to ground. They are very effective for high surges but may require manual reset after tripping.
• Clipping Diode Arresters : Use Zener diodes to limit voltage and are typically used in combination with other types of SPDs to provide additional protection for sensitive equipment.
• Combined : Some surge arresters combine multiple technologies, such as varistors and gas discharge tubes, to provide more complete and versatile protection against surges.

Why are DC Dischargers Important?

Their role is fundamental as they modulate the DC current discharge process , allowing the photovoltaic system to maintain a balance between the current generated and the one actually used. This prevents potential failures or damage caused by excess energy.

Variety of Options for Every Need

Regardless of the size or type of PV system, there is always a suitable DC arrester. The market offers solutions for every specific need, thanks to a vast range of models from the best brands in the sector, including Bticino, Cabur, Finder, Lovato , and many others.

The DC Arresters Catalogue: A Solution for Every System

In our online catalog you will find a vast selection of DC arresters for photovoltaic , each characterized by quality and reliability. Choose from the best brands available on the market to ensure optimal protection of your photovoltaic system.

• BTicino
• Cabur
• Finder
• Lovato

DC SPDs for Photovoltaic at Unbeatable Prices

Don't miss the opportunity to purchase DC current arresters for photovoltaic systems at advantageous prices . Only on our site you will find exclusive offers that will allow you to guarantee maximum safety for your photovoltaic system without compromising on the budget.

Easy Purchase and Flexible Payment

Buy your DC surge arrester today and take advantage of our installment purchase option. Choose the flexibility to pay when you prefer, while enjoying the peace of mind that only a protected and safe photovoltaic system can offer.