Surge Protection Device Manufacturers

Surge Protection Device Manufacturers

Created by: Glen Zhu | Updated Date: May 4th, 2025

The Surge Protection Device (SPD) is a component of the electrical installation protection system. This device is connected in parallel on the power supply circuit of the loads that it has to protect.

On this page, we share leading surge protection device manufacturers for you. If you want to buy SPD, we recommend that you examine the products of these global brands.

Overview of Leading Surge Protection Device Manufacturers

No.

Surge Protection Device Manufacturers

1

Dehn

2

Phoenix Contact

3

OBO

4

Raycap

5

Citel

6

Saltek

7

Hakel

8

Cirprotec

9

ABB

10

Schneider

11

Weidmüller

12

LSP

13

Leutron

14

Zotup

15

Transtector

16

OTOWA

17

Clamper

1. Dehn

Dehn surge protective device manufacturer

Country of origin: Germany

Headquarters: Neumarkt in der Oberpfalz, Bavaria, Germany

Founded: January 21, 1910, by Hans Dehn

Current CEO: Helmut Pusch (representing the fourth generation of the family-owned business)

Employee: Over 2,500 employees worldwide (as of fiscal year 2023/2024). DEHN operates in more than 70 countries through subsidiaries and partners.

Development History:

DEHN was founded in 1910 as a small family business, initially focusing on electrical engineering and lightning protection equipment. As Germany industrialized, DEHN became a pioneer in lightning protection in the early 20th century.

By the mid-20th century, the company expanded internationally, developing surge protection devices (SPDs) for low-voltage systems.

By the late 20th century, DEHN had established itself as a global leader in lightning and surge protection, holding over 1,100 patents.

In 2010, the company celebrated its 100th anniversary and further expanded into renewable energy sectors like photovoltaics and wind power. In the 2023/2024 fiscal year, DEHN reported annual revenue of approximately €470 million with over 2,500 employees worldwide.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protection Devices (SPDs): Including Type 1, Type 2, and Type 3 arresters.

Lightning Protection Systems: External lightning protection and earthing systems.

Safety Equipment: Personal protective equipment and safety devices.

Customized Solutions: For photovoltaic systems, wind energy, electric vehicle charging, data centers, and industrial automation       

Website: www.dehn-international.com

YouTube: https://www.youtube.com/@DEHN-International

160 We are DEHN -Thumbnail

2. Phoenix Contact

Phoenix Contact surge protection device manufacturer

Country of origin: Germany

Headquarters: Blomberg, North Rhine-Westphalia, Germany

Founded: 1923, by Hugo Knümann

Current CEO: Dirk Görlitzer (Dirk Görlitzer has been the CEO of Phoenix Contact since January 2025, succeeding Frank Stührenberg.)

Employee: Approximately 21,000 employees globally (as of 2024)

Annual Revenue: Approximately €3.4 billion (October 2024 data)

Development History:

Phoenix Contact was founded in 1923 in Essen, Germany, by Hugo Knümann, initially focusing on the sale of electrical connection technology. In 1943, the company relocated to Blomberg due to air raids in Essen during World War II.

After Hugo Knümann’s death in 1953, Josef Eisert and Ursula Lampmann took over, and through a merger, the sister company Phoenix Feinbau was created, marking the foundation of the future Phoenix Contact Group. In 1981, the company rebranded to Phoenix Contact, reflecting the increasing integration of electronics in its products, and established its first foreign subsidiary in Switzerland, followed by expansions into the USA and Sweden.

In 1987, it launched the INTERBUS fieldbus system, advancing cross-system openness in automation. In 1993, a subsidiary was established in Nanjing, China. In 1996, Phoenix Contact Electronics was founded in Bad Pyrmont, Germany, specializing in electronic module production. Further expansions in Blomberg occurred in 2005 and 2007, including the Innovation Center Electronics building.

By 2022, Phoenix Contact had become a global leader in electrical engineering and automation, with annual revenue of €3.6 billion, over 22,000 employees, and operations in more than 100 countries.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Industrial connection technology (terminals, connectors), Industrial automation products (PLCs, I/O systems, industrial Ethernet switches), Surge Protection Devices (SPD), Electric vehicle charging solutions, Remote I/O systems, Power supply units, Industrial wireless communication devices, Marking and labeling systems

Website: www.phoenixcontact.com

YouTube: https://www.youtube.com/@phoenixcontact1923

160 Surge protection products for power supply systems -Thumbnail

3. OBO

OBO surge protection device manufacturer

Country of origin: Germany

Headquarters: Menden, Sauerland, Germany

Founded: 1911, by Franz Bettermann and Ernst Bettermann

Current CEO: Ulrich Bettermann (part of the third generation of the family, is the current CEO of OBO Bettermann)

Development History:

Founded in 1911, OBO BETTERMANN is a family-owned company with over 100 years of history, specializing in electrical installation and lightning protection systems. With the motto “Think connected,” OBO provides innovative electrical connection and fastening systems for industrial installations, building installations, and safety protection. The company continuously innovates, offering cable support systems, surge and lightning protection, fire protection systems, cable routing systems, device systems, and underfloor systems, serving over 60 countries worldwide. OBO emphasizes customer needs and human connections to remain flexible in changing markets.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Electrical connection and fastening systems, Cable support systems, Surge and lightning protection systems, Fire protection systems, Cable routing systems, Device mounting systems, Underfloor systems

Website: https://www.obo-bettermann.com and www.obo.global

YouTube: https://www.youtube.com/@OBOBettermannGroup

160 Safe lightning and surge protection -Thumbnail

4. Raycap Inc. & Iskra Zaščite d.o.o.

Raycap surge protection device manufacturer

Country of origin: Greece & Slovenia

Headquarters: Athens, Greece & Ljubljana, Slovenia

Founded: 1987, by Kostas Apostolidis

Current CEO: Dr. Kostas Samaras

Development History:

RAYCAP was founded in 1987, initially focusing on surge protection solutions for telecommunications and industrial sectors. The company grew rapidly through advanced engineering and product design, establishing a global organization across Europe and North America. In the 1990s, RAYCAP expanded its product lines to include lightning protection and telecom concealment solutions.

In 2015, RAYCAP acquired Iskra Zascite, further expanding its surge protection technology and global market presence. In recent years, RAYCAP introduced the Strikesorb® series surge protectors and RaycapSTAX™ stackable modules, catering to telecommunications and renewable energy needs.

By 2024, the company participated in international events like Light + Building 2024 and Breko Fiberdays 24, showcasing innovations in photovoltaics, battery storage, and EV charging infrastructure. RAYCAP now operates multiple production and R&D facilities worldwide, including in Post Falls, Idaho, USA; Drama, Greece; and Bucharest, Romania.

Founded in 1946, Iskra is a leading Slovenian manufacturer of electrical equipment specializing in surge protection, smart metering, energy management, and industrial automation. The company has strong R&D and manufacturing capabilities, serving energy, industrial, and infrastructure sectors. In 2023, Iskra was acquired by Raycap, becoming a subsidiary and expanding its global reach.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Industrial Surge Protection Devices (SPD), Telecom connectivity cabinets and custom enclosures, Power management and distribution equipment, Wireless and wireline connectivity solutions, Small cell site concealment solutions

Website: www.raycap.com

YouTube: https://www.youtube.com/@Stealthconcealmentsolutions

5. Citel

Citel surge protection device manufacturer

Country of origin: France

Headquarters: Paris, France

Founded: 1937

Development History:

CITEL was founded in 1937, initially manufacturing tubular light bulbs. In 1944, CITEL produced its first surge arrester, marking its entry into electrical protection. In 1976, the company was acquired by the current management, discontinuing light bulb production to focus on surge protection technology. In 1985, CITEL America was established in Miami, USA. In 1988, CITEL Electronics GmbH was founded in Düsseldorf, Germany. In 1992, CITEL acquired the CLAUDE gas discharge tube line from GTE Sylvania in France, along with OBSTA. In 1996, Shanghai CITEL Electronics Co., Ltd. was established in China.

 In 2000, CITEL introduced new technology for AC surge protectors (VG series). In 2005, it formed a joint venture with Tong Da, named CITEL Tong Da, to produce coaxial surge protectors. In 2010, CITEL Russia was founded in Moscow. In 2012, CITEL India was established in New Delhi. By 2025, CITEL has become a global leader in the surge protection market, with products covering AC power, DC power, data lines, and RF coaxial applications, manufacturing facilities in France and China, and sales offices in France, Germany, USA, China, and Eastern Europe.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

AC Power Surge Protection, Data Power Surge Protection, Surge Protection for LED Lighting Systems, PV Surge Protection, Gas Discharge Tubes

Website: www.citel.fr

YouTube: https://www.youtube.com/@CITELSurgeProtectors

Citel

6. Saltek

Saltek surge protection device manufacturer

Country of origin: Czech Republic

Headquarters: Ústí nad Labem, Ustecky Region, Czech Republic

Founded: March 28, 1995, by Mr. Jaromír Suchý

Development History:

Founded in 1995 by Jaromír Suchý, focusing on the development and production of surge protective devices.

Evolved from producing the first BFG surge protector to offering over 600 types of surge protection products for low-voltage networks, photovoltaic systems, IT, measurement and control, and telecommunications.

In the 2000s, established long-term production and development partnerships with Schneider Electric and ABB, introducing innovative products like Type 1+2 surge protectors and Type 3 surge protectors integrated into sockets.

In 2014, received the Red Dot Design Award for its unique color-coded surge protection device design.

In 2024, launched a patented VLD-F solution for railway infrastructure protection and introduced the FLP-ZP-7.5/12.5 surge protector for the German market.

Grew from a small team to over 200 employees, expanding production facilities from a garage to a modern 6,000 m² facility.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Type 1, Type 2, and Type 3 lightning and surge arresters (compliant with EN 61643-11).

Surge protection devices for photovoltaic systems, LED lighting, data and signal lines, and telecommunication lines. Voltage limiting devices (VLD-F) for rail transport. FLP MAXI series and SLP series (surge protectors with removable modules).

Website: www.saltek.eu

YouTube: https://www.youtube.com/@salteksro

Saltek-Thumbnail

7. Hakel

Hakel surge protection device manufacturer

Country of origin: Czech Republic

Headquarters: Ústí nad Labem, Ustecky Region, Czech Republic

Founded: 1994 by  Ing. Jaroslav Hudec

Current CEO: Bc. Pavel Hudec (son of the founder)

Development History:

HAKEL was founded by Ing. Jaroslav Hudec, PhD, in 1994 in Hradec Králové. The company name is an abbreviation of “Hradec Kralove Elektro.” Since its inception, HAKEL has specialized in manufacturing surge arresters and insulation monitors. Their products serve residential, industrial (oil pipelines, gas pipelines, photovoltaics, power plants, railways), and specialized applications.

HAKEL also develops insulation monitoring devices for isolated IT networks, used in hospitals and industrial settings to protect equipment and human lives. After the founder’s passing in 2014, his son Pavel Hudec took over leadership. The company emphasizes customer cooperation, technical support, and training, holds ISO 9001 certification, and actively promotes exports worldwide.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protection Devices (SPDs): AC and DC surge protectors, Lightning arresters (Type 1), Surge arresters (Type 1+2+3), Terminal equipment protection (Type 3), Surge arresters with EMI/RFI filters; Insulation Monitoring Devices: Designed for AC/DC systems, including applications in hospitals, industrial settings, and railway infrastructure; Software Tools: HAKELSOFT suite for risk calculation and system design.

Website: www.hakel.com

YouTube: https://www.youtube.com/@HAKELltd

160 Hakel spol. s r.o. -Thumbnail (1)

8. Cirprotec (CPT) & Mersen

Cirprotec surge protection device manufacturer

Country of origin: Spain

Headquarters: Terrassa, Spain

Founded: 1993, by Carles Pons

Development History:

Founded in 1993, CIRPROTEC specializes in designing and manufacturing lightning and surge protection devices. Since joining the French Mersen Group in 2014, CIRPROTEC has expanded its R&D and manufacturing capabilities. With over 30 years of experience, its products serve photovoltaic, e-mobility, smart buildings, and other sectors. CIRPROTEC owns advanced laboratories and patented technologies such as V-CHECK®, G-CHECK®, and Safeground®. The Nimbus® early streamer emission lightning rods are globally recognized. The company actively contributes to international standards and emphasizes sustainability through green energy and eco-design. CIRPROTEC products are sold in over 60 countries.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protection Devices, Lightning Rod, DIN Style and High-Capacity Surge Diverters

Website: www.cirprotec.com

YouTube: https://www.youtube.com/@CirprotecSL

160 Video corporativo Cirprotec -Thumbnail

9. ABB

ABB surge protection device manufacturer

ABB began producing surge protective devices in the early 1990s, responding to the growing demand for surge protection in industrial automation, power systems, and building electrical installations.

Overview:

  • Background: With the increasing use of sensitive electronic equipment, ABB developed SPD products to protect against lightning and switching overvoltages.
  • Development: ABB has continuously improved its SPD technology, expanding into applications across residential, commercial, industrial, PV systems, and data networks.
  • Key Features:
    • High-performance MOV (metal oxide varistor) technology
    • Thermal disconnector and fault indicator
    • Modular, pluggable designs for easy maintenance
    • Remote signaling capability for integration with smart power systems

The OVR series is ABB’s flagship SPD line, widely used across various environments.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, ABB’s most popular SPDs fall under several product families, each tailored to different applications:

1) OVR Series (Main SPD Line)

• OVR T1 Series

  • Type: Type 1 SPD (Lightning current arresters)
  • Applications: Main distribution boards, areas with high lightning exposure
  • Features:
    • Handles direct lightning currents (25kA to 50kA, 10/350μs)
    • Thermal disconnector and status indicator
    • Optional remote signaling contact

• OVR T2 Series

  • Type: Type 2 SPD (Surge arresters)
  • Applications: Sub-distribution boards, floor panels
  • Features:
    • Common model: OVR T2 40-275s P
    • Compatible with 230/400V systems
    • Pluggable modules for easy replacement

• OVR T1-T2 Combination Series

  • Type: Combined Type 1+2 SPD
  • Applications: Installations requiring full protection but limited space
  • Benefits:
    • Space-saving design
    • Dual protection against lightning and switching surges

2) OVR PV Series

  • Designed for Photovoltaic (PV) Systems
  • Features:
    • Supports high DC voltages (600V, 1000V, 1500V DC)
    • Protects solar panels and inverters
    • Popular model: OVR PV 1000 P TS

3). OVR Data / Signal Series

  • For Data, Signal, and Communication Lines
  • Applications: Ethernet, RS485, telephone lines, control systems

Popular Model Examples

Model

Type

Max Discharge Current

Nominal Voltage

Key Features

OVR T2 40-275s P

Type 2

40kA (8/20μs)

275V AC

Modular, remote signaling

OVR T1-T2 12.5-275 P TS

Type 1+2

12.5kA (10/350μs)

275V AC

High energy protection for main boards

OVR PV 1000 P TS

PV SPD

40kA (8/20μs)

1000V DC

For DC photovoltaic systems

Website: www.abb.com

YouTube: https://www.youtube.com/@ABBElectrification

160 OVR T2 T3 -Thumbnail

10. Schneider

Schneider surge protection device manufacturer

Schneider Electric began producing surge protective devices (SPDs) in the late 1980s to early 1990s, in response to the growing demand for protection of electrical and electronic systems due to increased automation and digitization.

Overview:

  • Background: As a global leader in energy management and automation, Schneider leveraged its expertise in low-voltage distribution to enter the SPD market early on.
  • Development:
    • Initially focused on low-voltage SPDs for power distribution systems.
    • Later expanded to cover a wide range of applications including residential, commercial, industrial, photovoltaic (PV), telecom, and data centers.
  • Key Features:
    • High-quality MOV-based protection, sometimes combined with gas discharge tubes (GDTs)
    • Thermal disconnect, fault indicators, and optional remote signaling
    • Modular DIN-rail designs for easy installation
    • Seamless integration with Schneider’s modular systems (Acti9, Vigi, etc.)

Popular Schneider SPD Series

As a professional Surge Protection Device Manufacturer, Schneider Electric offers several well-known and widely used SPD product lines:

1) Acti9 iPRD Series (Flagship SPD Line)

  • Applications: Residential and commercial distribution panels
  • Features:
    • Modular, pluggable design for DIN-rail installation
    • Compatible with Schneider’s iC60 and Vigi systems
    • Remote signaling available (models ending in “r”)
    • Available in Type 1, Type 2, and Type 1+2 combinations

Popular Models:

Model

Type

Voltage

Max Discharge Current

Key Features

iPRD40r

Type 2

230/400V AC

40kA (8/20μs)

Modular, with remote signaling

iPRD65r

Type 2

230/400V AC

65kA

Higher surge capacity

iPRD1 12.5r

Type 1

230/400V AC

12.5kA (10/350μs)

Lightning protection for main panels

iPRD1+iPRD40r

Type 1+2

230/400V AC

Combination

Space-saving and comprehensive protection

2) PRD1 / PRD1r / PRD1r Twin Series

  • Applications: Industrial facilities, large commercial buildings
  • Features:
    • High energy-handling capacity
    • Suitable for environments with direct lightning exposure
    • Available in 1P, 3P, and 3P+N configurations
    • “r” = remote signaling; “Twin” = dual-module design for redundancy

Popular Models:

Model

Type

Max Current

Key Features

PRD1 12.5r

Type 1

12.5kA (10/350μs)

Main distribution board protection

PRD1r Twin

T1+T2

High capacity

Industrial-grade combined protection

3) A9 Series (e.g., A9L, A9V, A9S)

  • Use Case: Designed to work with Schneider’s miniature circuit breakers (MCBs) like iC60 and iK60.
  • Applications: Residential or light commercial systems.

4) STV, SE, EZ Series

  • Use Case: Tailored for specific markets like North America or Southeast Asia.
  • Features: Panel-mount or cabinet-integrated solutions.

Website: www.se.com

YouTube: https://www.youtube.com/@schneiderelectric

Schneider

11. Weidmüller

Weidmüller surge protection manufacturer

Country of origin: Germany

Headquarters: Detmold, North Rhine-Westphalia, Germany

Founded: 1850

Current CEO: Dr. Sebastian Durst (appointed October 1, 2024)

Development History:

Founded in 1850, Weidmüller began as a textile company before transitioning to electrical engineering, focusing on terminal blocks and connectors.

In the early 20th century, pioneered terminal block technology, establishing itself as a leader in industrial connectivity.

1994, established a presence in China, starting with sales and later expanding to production.

2003, acquired Klippon Engineering, enhancing expertise in process industries.

2010s, embraced digitalization, launching solutions for Industrial IoT and automation, including the u-OS operating system.

2019, opened a new 14,000 m² production facility in Suzhou, China, to support growth in Asia.

2022, surpassed €1 billion in sales for the first time, reflecting strong global demand.

2023, achieved €1.102 billion in sales and received the German Design Award for products like PV Next and the corporate film “From Detmold with Love.”

2024, Dr. Sebastian Durst appointed as CEO, and the Joachim Herz Foundation acquired a 20% stake to support long-term growth.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Industrial connectors, Terminal blocks, Industrial automation and control systems (e.g., u-control, u-OS), Power and signal protection devices, Industrial IoT solutions, Cabinet wiring and marking systems

Website: www.weidmuller.com

YouTube: https://www.youtube.com/@WeidmuellerGlobal

160 VARITECTOR Überspannungsschutz im Einsatz GFR -Thumbnail

12. LSP

Wenzhou Arrester Electric Co., Ltd. (brand name: LSP) is a leading Chinese manufacturer specializing in surge protection solutions and low-voltage electrical components. With over 15 years of industry experience, the company has built a solid reputation for reliability, technical innovation, and international market reach.

Country of origin: China

Headquarters: Wenzhou, China

Founded: 2010

Current CEO: Glen Zhu

Development History:

Founded: In the early 2010s

Location: Wenzhou, Zhejiang Province  known as China’s electrical equipment manufacturing hub

Initial Focus: Low-voltage surge protective devices (SPDs) for residential and commercial applications

Growth Milestones:

2012-2015: Rapid growth in domestic market; obtained key certifications (CE, TUV, RoHS, etc.)

2016-2018: Expansion into international markets across Europe, Southeast Asia, and South America

2019-2023: Introduced signal line SPDs, photovoltaic (PV) SPDs, and custom OEM/ODM services

2024 onwards: Strategic brand upgrade – launched new LSP logo and expanded into broader low-voltage product lines

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

1) Surge Protective Devices (SPDs)

Type

Application

Type 1 SPD

Lightning current protection (main panels)

Type 2 SPD

Surge protection in sub-distribution panels

Type 3 SPD

Fine protection at terminal equipment

Type 1+2 SPD combination

Comprehensive protection in lightning zones

DC SPDs

PV solar systems (DC side)

Signal SPDs

Data/communication lines (RJ45, RS485, etc.)

2) Photovoltaic Protection Devices

  • DC surge protectors (600V / 1000V / 1500V)
  • PV combiner box SPD modules
  • Fuse holders for solar applications

Website: https://lsp.global

YouTube: https://www.youtube.com/@lsp.global

AC and DC Surge Protection Device SPD Manufacturer

13. Leutron

Leutron surge protection device manufacturer

Country of origin: Germany

Headquarters: Leinfelden-Echterdingen, Baden-Württemberg,Germany

Founded: 1941 (originated as Siemens CERBERUS lightning protection division)

Development History:

LEUTRON has over 60 years of experience in the development and manufacturing of lightning and surge protection components. Originally part of Siemens CERBERUS group’s lightning protection R&D and manufacturing department, it became independent in 1999. LEUTRON continues to develop advanced technologies such as hermetically sealed gas discharge tubes and metal-ceramic spark gaps. The company employs sophisticated manufacturing processes including high-temperature soldering and vacuum technology to ensure product safety and durability. LEUTRON remains a strategic partner of Siemens in lightning protection and serves industries such as industrial, transportation, and energy sectors.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protective Devices (SPDs): Including Type 1, Type 2, and Type 3 surge protectors for low-voltage distribution, industrial, and residential applications.

Data Line Protection: DataPro series for Ethernet, RS-485, and telecommunication line surge protection.

Photovoltaic System Protection: Dedicated DC and AC protection devices for solar power systems.

Railway Protection Devices: Surge protectors for signaling systems and power networks.

Specialized Products: Protection devices for explosive environments and 5G base stations.

Website: www.leutron.de

14. ZOTUP

ZOTUP surge protection manufacturer

Country of origin: Italy

Headquarters: Bergamo, Lombardy, Italy

Founded: 1986

Development History:

Founded in 1986, ZOTUP specializes in the design and manufacture of surge protective devices (SPDs), proudly Made in Italy, focusing on high quality and efficient service. The company is led by a father-son team combining tradition and innovation. Since obtaining its first patent in 2016, ZOTUP has developed innovative products including SPDs with integrated fuses, state indicators, and progressive degradation indicators. The company has actively expanded internationally, entering the Turkish and Indian markets in 2017, the UAE market in 2022, and diversifying further in 2023. ZOTUP emphasizes R&D with a highly qualified technical team; all products are tested by independent international laboratories to ensure safety and performance. A new modern strategic facility is planned to open in 2025 to foster innovation and collaboration.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge protection devices for low-voltage power systems, signal lines,  data and communication lines/ PV Surge protection device

Website: www.zotup.com

YouTube: https://www.youtube.com/@ZOTUPSrl

ZOTUP -Thumbnail

16. Transtector

Transtector surge protection device manufacturer

Country of origin: USA

Headquarters: Hayden, Idaho, USA

Founded: 1967

Development History:

Founded in 1967 as Transistor Electronics Corporation, Transtector initially focused on developing surge protection solutions for telecommunications and power systems.

In the 1970s, pioneered early transient voltage suppression technologies, establishing a reputation for reliable surge protection devices.

1980s, expanded into industrial and military applications, introducing ruggedized surge protectors for harsh environments.

2000s, acquired by Smiths Interconnect (a division of Smiths Group), enhancing its global reach and product development capabilities.

2012, became part of Infinite Electronics, a portfolio company focused on RF, microwave, and connectivity solutions, boosting its innovation in IoT and 5G applications.

2018, launched the IOT Series of surge protectors tailored for smart grid and IoT infrastructure.

2023, introduced advanced EMP (electromagnetic pulse) protection solutions for critical infrastructure, aligning with growing cybersecurity demands.

2024, Transtector celebrated over 50 years, expanding its portfolio to include integrated power systems for renewable energy and data centers.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protective Devices (SPDs): AC, DC, and data line surge protectors for telecommunications, industrial, and renewable energy systems.

IOT Series: Surge protection for IoT infrastructure, including smart grids and connected devices.

EMP Protection: Electromagnetic pulse surge suppressors for critical infrastructure and defense applications.

Power Distribution Units (PDUs): Integrated power and surge protection for data centers and industrial facilities.

RF Surge Protection: Coaxial and waveguide protectors for 5G, satellite, and radio communications.

Website: https://www.transtector.com

YouTube: https://www.youtube.com/@TranstectorSystems

16. OTOWA

OTOWA surge protection manufacturer

Country of origin: Japan

Headquarters: Setagaya, Tokyo, Japan

Founded: 1946

Current CEO: Osamu Yoshida

Development History:

Founded in 1946, Otowa Electric Co., Ltd. began as a manufacturer of electrical components, later specializing in lightning protection and surge suppression technologies.

In the 1960s, pioneered the development of Zinc Oxide Blocks (Metal Oxide Varistors, MOVs), establishing itself as a leader in surge protection ceramics.

1970s, achieved mass production of Zinc Oxide Blocks, enabling high-quality, compact, and lightweight lightning arresters for various applications.

1980s, introduced polymeric and composite materials for arrester housings, replacing traditional porcelain to improve durability and reduce weight.

2000s, developed advanced lightning and surge measurement instruments, including lightning radar and current observation systems, enhancing its product portfolio.

2010s, expanded its global presence, supplying surge protection solutions to power utilities, telecommunications, and industrial sectors worldwide.

2023, continued to innovate with high-performance MOVs and integrated surge protection systems, maintaining its position as Japan’s top surge protection manufacturer.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protective Devices (SPDs) using zinc oxide ceramic elements, Oxide zinc arrestors, Lightning protection equipment, Lightning surge testing and evaluation services, Lightning surge protective devices for homes, data lines, and distribution boards.

Website: https://www.otowadenki.co.jp

17. Clamper

CLAMPER surge protection device manufacturer

Country of origin: Brazil

Headquarters: Lagoa Santa, Minas Gerais, Brazil

Founded: 1991

Current CEO: Marcelo Lobo

Development History:

CLAMPER was founded in 1991 and has been dedicated to the research, development, and manufacturing of Surge Protective Devices (SPDs) for over 30 years. Initially focusing on the mining industry, it expanded to other sectors needing protection for electrical and electronic equipment. The company has sold over 40 million products across more than 23 countries, establishing itself as a market leader in Brazil and the largest reference in lightning and surge protection technology in Latin America. It operates the largest SPD testing laboratory in the Southern Hemisphere. In 2023, CLAMPER was acquired by Legrand, a global leader in electrical and digital building infrastructures, marking a significant milestone in its growth.

Popular Product lines:

As a professional Surge Protection Device Manufacturer, their popular products:

Surge Protection Devices, Low voltage lightning arresters, Distribution boards and related protection equipment, Customized surge protection solutions

Website: www.clamper.com.br

YouTube: https://www.youtube.com/@CLAMPEROFICIAL

At the same time, we have provided a coordinate graph of quality and price for your reference.

Surge Protection Device Manufacturers

Reliability in Surge Protection

LSP’s reliable surge protection devices (SPDs) are designed to meet the protection needs of installations against lightning and surges. Contact our Experts!

Request a Quote