Over voltage arresters
Protect Your Solar System from Surges Caused by Lightning and Grid Disturbances!
Solar systems play an increasingly important role in achieving energy independence and sustainable operations. However, a single lightning strike or grid failure can cause significant financial damage and lengthy downtimes—within seconds.
Using surge protection devices is essential for ensuring reliable and long-lasting operation. These devices effectively suppress voltage spikes impacting the system, whether caused by direct lightning or remote network disturbances. Protection can be further enhanced with complementary components such as circuit breakers, fire safety switches, or pre-assembled AC/DC boxes, all playing a vital role in safeguarding your system.
Our webshop offers a wide range of state-of-the-art DC and AC surge arresters, tested to industrial standards and optimized for use in solar systems. These products not only preserve system integrity, but also reduce maintenance costs and improve the return on investment.
Don’t wait for trouble to strike! Browse our selection of reliable surge protection devices and secure your solar system today. Take action now to guard against future disruptions!
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Have questions about our products?
As a B2B partner, feel free to contact your dedicated sales representative. Our team is happy to assist and provide answers about the surge protection solutions that best fit your needs. You may also find helpful insights in the frequently asked questions below:
What are the differences between Type 1, Type 2, and Type 3 surge protection devices?
- Type 1 (Lightning Current Arresters): These can discharge high-energy currents from direct lightning strikes. They are typically installed at the building’s main distribution panel at the power entry point.
- Type 2 (Surge Arresters): These protect against switching surges and indirect lightning-induced overvoltages. They are usually placed in sub-distribution boards.
- Type 3 (Fine Protection): Installed directly in front of sensitive electronic equipment to protect against residual surges.
How can you determine the need for surge protection in a specific building?
- Lightning Risk Assessment: Based on the MSZ EN 62305 standard series, a detailed risk analysis can determine necessary protection measures.
- Building Type and Location: Taller buildings, rural properties, or those without lightning protection are at higher risk.
- Sensitivity of Electrical Equipment: Surge protection is recommended for sensitive devices like computers, medical instruments, and industrial controllers.
- Local Regulations: In some cases, installing surge protection devices may be mandatory.
How often should surge protection devices be inspected?
- Inspection Frequency: At least once per year.
- Inspection Methods: Visually check status indicators and use testing instruments to verify functionality.
- Signs of Replacement: Replace devices if status indicators signal failure or test values deviate from manufacturer specs.
How does grounding quality affect the effectiveness of surge protection?
- Low Grounding Resistance: Ensures surge energy is effectively discharged into the ground.
- Proper Grounding System Design: Reduces potential differences and enhances protection efficiency.
- Regular Inspection: Grounding systems should be checked and maintained regularly.
What is the role of the Lightning Protection Zone (LPZ) concept in surge protection design?
The LPZ approach divides a building and its electrical system into zones that gradually reduce the impact of electromagnetic energy from lightning strikes. Each zone requires appropriate protection devices, ensuring only dampened impulses reach internal equipment. This is key to system safety.
What is the maximum allowed length of connecting wires for surge protection devices?
Standards require that the total length of connecting wires—including phase, neutral, and grounding wires—must not exceed 1 meter. This minimizes inductance and ensures fast voltage discharge. Cables should be installed straight, without loops, and the SPD should be placed as close as possible to the distribution board and grounding terminal.
Reviews and Recommendations from SOLARKIT Experts
The primary goal of surge protection is to prevent damage to electrical equipment caused by sudden, excessive voltages. These voltage spikes can result from lightning or switching operations in the power grid and may cause serious damage in a short time, especially to sensitive inverters or control electronics.
Solar systems are particularly vulnerable, as they are often installed outdoors on rooftops and are directly exposed to lightning strikes. That’s why both DC and AC sides of the system must be protected with appropriate surge arresters. These devices discharge surge energy toward the ground, preventing further damage.
When designing protection, the LPZ concept must be considered. Different types of SPDs (T2, T3) should be applied based on the zone, energy level, and equipment location.
Cable length and routing also play a crucial role. To maintain SPD effectiveness, the total length must not exceed 1 meter, ensuring fast response and minimal energy loss.
Ultimately, well-designed surge protection not only increases system safety but also helps save significant costs in maintenance and repair. Whether for home or industrial use, the investment pays off—because with a reliable system, you reduce risks and extend lifespan.