Top 10 DC SPD Manufacturers: A Selection Guide

For the current industrial and power businesses, it is crucial to secure the electrical systems. DC Surge Protective Devices (SPDs) protect equipment from voltage surges and transient voltages. In this guide, readers can find the 10 best manufacturers of DC SPDs that are preferred by specialists due to quality, reliability, and innovation.

Top 10 DC SPD Manufacturers

Top 10 DC SPD Manufacturers

 

What is DC SPD?

A DC SPD is a required solution in electrical systems applications to prevent overvoltage resulting from the occurrence of lightning, surge, or any transit currents. Circuits on these devices guide excess voltage away from other sensitive circuits helping prevent disruption or equipment damage.

 

Why Use DC SPD?

DC SPDs help to prevent risks that are associated with downtimes, equipment damage, and systems failure due to voltage surges. Their application is in renewable energy, telecommunications, and power distribution sectors. Grand View Research reported that the global SPD market was worth USD 3.1 billion in 2022 and would expand at 8.2% CAGR in the years 2023-2030.

DC SPD from LETOP

DC SPD from LETOP

 

Top 10 DC SPD Manufacturers 

   1. ABB

Sweden-based ABB has been a surge protection market leader since 1988 and it currently has a 25% market share globally. ABB offers many DC SPDs that are used in PV systems, and industrial and commercial applications. Their products are certified under IEC and UL standards hence they receive high quality and safe products. The product offering includes low-voltage devices, hybrid protection systems, and many others.

ABB therefore enjoys a worldwide reputation for quality products, the result of half a century of research and engineering. Though geopolitical risks remain ABB aims at 5% sales in 2024 as per Reuters.

ABB logo

ABB logo

 

    2. LETOP

LETOP was established in 2015 in China and operates in the surge protection industry with a very focused approach. The company is focused on supplying DC SPDs specifically designed to serve photovoltaic (PV) systems and modular overvoltage protection. The use of LETOP’s DC SPDs has risen 20% YoY across solar PV brands.

The LETOP products are manufactured to conform to international standards such as IEC 61643 focusing on renewable energy and commercial DC usage. LETOP has established itself within the Asian market due to lower pricing and easy software. Their product lines target residential, commercial, and small industrial customers seeking affordable solutions for protecting their electrical systems from surges.

SPD LETOP logo

SPD LETOP logo

    3. Mersen

Mersen Company is the producer of SPD based in Paris, France since 1937 holding approximately 12% of the market share. Based on its specialization, this company provides various kinds of DC SPDs emphasizing photovoltaic and hybrid systems. They have certified their products with IEC 61643 and UL 1449 stating the high performance levels of the product.

The product offering is in power management and safety applications that are robust for the industrial and renewable energy market segments. Mersen is a company with a strong reputation for innovation and sustainability, which has been delivering superior products for international markets.

Mersen logo

Mersen logo

 

     4. Siemens

Siemens is an electrical infrastructure industry founded in 1847 in Munich, Germany, and currently holds nearly 10% of the SPD market share. It focuses on modular DC SPDs for applications in photovoltaic systems, industrial automation, and energy solutions. IEC, UL, and VDE standards are complied thus indicating that Siemens products are of high-quality products and reliable.

Being one of the leaders in the market, Siemens is well-developed in various fields and has SPDs for both commercial and industrial usage where the company ensures both engineering competence and modern technology. They are market leaders because they adhere to sustainability and application of new technology in surge protection and power distribution.

Siemens logo

Siemens logo

 

      5. Littelfuse, Inc

Littelfuse was established in 1927 in Chicago, Illinois, and is among the leading companies in the surge protection business taking a 10% market share. This company offers various DC SPDs such as TVS diodes, and high-end solutions for renewable power and automotive purposes.

The company products are UL-listed to show that they meet recommended standards and are ISO certified. The products range greatly for different fields and industries and provide secure surge protection to the company. Given the innovations, Littelfuse often tops the SPD manufacturer list globally because of its commitment to the development of circuit protection technologies.

Littelfuse logo

Littelfuse logo

 

      6. Bourns, Inc

Bourns, Inc. is a medium-sized company that started operations in 1947 in Riverside, California, USA, and it holds 5-8% of the global share in the surge protection market. It provides the facility of DC SPD like TVS diodes, gas discharge tubes (GDTs), and hybrid SPD solutions.

These products are commonly used in the automotive, industrial, and telecommunication fields. They have ISO 9001 certifications and UL listings to show that their products are of high quality. They deal in a variety of products with a focus on circuit protection solutions for today’s industrial market.

Bourns is particularly highly acclaimed for its R&D potential and for its state-of-the-art solutions for overvoltage and transient surge protection.

Bourns logo

Bourns logo

      7. nVent

nVent located in London, UK, was founded in 1894 as a separate business after Pentair’s spin-off. The company covers approximately 5% market share in surge protection, selling industrial grade SPD for DC power and telecommunication Market. nVent products have ISO certification as well as UL listing providing quality and safety assurance.

Their products include surge protectors, grounding systems, and electrical enclosures. With a major focus on the development of industries, nVent provides durable equipment that is necessary for the delivery of energy and infrastructure. Newly formed but rapidly growing, nVent has already earned respect for its fresh ideas for electrical safety and protection.

nVent logo

nVent logo

 

       8. MCG Surge Protection

MCG Surge Protection was founded in 1967 in Deer Park, New York, and currently specializes in offering specific surge protection products for industries and automation. Their DC surge protectors are mainly used as panel-mounted or plug-in models that function for certain industrial applications. MCG while its market share is under 3%, has a very good reputation for its product quality and customer service.

The firm makes it clear that its products meet UL 1449 requirements and specializes in offering sustainable solutions for industrial use. While smaller in overall size, MCG directs its business towards North American consumers and clients while retaining slow and steady growth to maintain content and loyal industrial and commercial customers.

MCG logo

MCG logo

 

      9. L-com

L-com founded in 1982, in North Andover, Massachusetts is a provider of connectivity solutions including SPDs for telecom and DC power systems. Currently, they control only 2% of the market share and focus on telecom and connectivity needs of industries. The Ethernet, telecom, and industrial surge protectors produced by L-com comply with IEC standards to ensure safe operative performance.

Since the manufactured products offer solutions to known customers, L-com ‘s offerings are created for resilience and function in demanding conditions. Though they lack a broad international presence they have a good market reputation within their niche areas.

L-com logo

L-com logo

 

      10. AIR802

AIR802 headquartered in Batavia, Illinois has been selling DC SPDs mainly for the wireless and telecom market since 2005. Their product range includes outdoor-rated DC SPDs used in the protection of communications systems from overvoltage. AIR802 is devoted to its sturdiness and conformity with the safety regulations for the outside spaces.

Currently, the company has a negligible market share of below 1%, with a focus on highly specialized applications in North America. AIR802 is credited for providing reliable surge protection in wireless communication and data transfer targeting clients with unique situations in the outdoors.

AIR802 logo

AIR802 logo

 

Top 10 DC SPD Manufacturers: Key Players and Their Leading Products

Company Name

Foundation Year Headquarters Top Products

ABB

1988 Sweden

– Low voltage surge protection devices
– Hybrid protection systems
– DC SPDs for PV systems

LETOP

2015 China

– DC SPDs for Solar
– Modular overvoltage protection devices
– Surge protectors for residential and commercial use

Mersen

1937 Paris, France

– DC SPDs for photovoltaic systems
– Hybrid SPDs
– Surge protection for renewable energy systems

Siemens

1847 Munich, Germany

– Modular DC SPDs for PV systems
– Industrial automation surge protectors
– Energy solution SPDs

Littelfuse, Inc

1927 Chicago, USA

– TVS diodes
– High-end DC SPD solutions for renewable energy
– Automotive surge protectors

Bourns, Inc

1947 Riverside, California, USA

– TVS diodes
– Gas discharge tubes (GDTs)
– Hybrid SPD solutions for industrial markets

nVent

1894 London, UK

– Surge protectors for DC power
– Electrical enclosures
– Grounding systems

MCG Surge Protection

1967 Deer Park, New York, USA

– Panel-mounted DC SPDs
– Plug-in models for industrial use
– Sustainable surge protection for industrial applications

L-com

1982 North Andover, USA

– Surge protectors for telecom systems
– Industrial Ethernet SPDs
– Connectivity surge protectors

AIR802 2005 Batavia, Illinois, USA

– Outdoor-rated DC SPDs
– Surge protection for wireless communication systems
– Telecom overvoltage protectors

 

Conclusion

Choosing the right DC SPD manufacturer is good for the protection of your electrical systems. The above companies are the best in the market as they provide quality products to suit the needs of their customers providing reliability and reassurance that you are being led by the best in the industry.

Q/A:

1. How to find a reliable DC SPD manufacturer?

A good manufacturer should be well established with the UL or IEC certification which provides globalization recognition, plus offers good customer reviews. Ensure that they are knowledgeable in your field of specialty; industrial, renewable energy, or telecommunications. Evaluate what products and services are in a position to introduce new products.

 

2. How do you choose the right DC SPD?

While choosing the DC SPD, one has to analyze the voltage and current levels to provide proper protection to the system. Pay attention to temperature, relative humidity, or exposure to surges. Selecting devices that can easily be integrated with the existing infrastructure is advisable so that added functionality like real-time monitoring.

 

3. How to check the quality of DC SPD?

For better DC SPD quality, check for the UL, IEC, or CE certifications in safety and conformity. Find performance tests about its endurance under surge conditions. Firstly one has to select reliable manufacturers from supply markets, which were tested for reliability by customers and used in the industry for a long period.