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Zhejiang Volcano Electrical Technology Co.,Ltd
Yamuna Cable Accessories Pvt. Ltd.
Watanabe Electric Industry Co. Ltd.
Vasudha – Gel Earthing Electrode.
true Power Limited.
Transcon
Tokyo Measuring Instruments Laboratory Co., Ltd.
Televes
TDK Electronics
Siemens Energy
PHOENIX CONTACT
Otowa Electric Industry Co., Ltd.

23 Arrester Manufacturers in 2024

This section provides an overview for arresters as well as their applications and principles. Also, please take a look at the list of 23 arrester manufacturers and their company rankings. Here are the top-ranked arrester companies as of December, 2024: 1.AMETEK U.S. Gauge, 2.Endress+Hauser, 3.Televes.

Table of Contents

Supervisor of this article

Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer. Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.

List of 23 Arrester Manufacturers

*Including some distributors, etc.

Sort by Features

  • Default
  • Company Size: largest first
  • Year Founded: oldest first
  • Year Founded: earliest first

Sort by Area

  • China
  • Germany
  • India
  • Japan
  • Spain
  • Switzerland
    • Watanabe Electric Industry Co. Ltd.
      • Japan Address: 6-16-19 Jingumae, Shibuya-ku, Tokyo, Japan

      Manufacturer Overview

      Watanabe Electric Industry Co. Ltd. are manufacturers of measurement and control instruments since 1940 in Japan. The company deals in signal converters, digital panel meters, non-contact meter relays, and electric current recorders. The signal converters are used to isolate and convert signals to prevent current ground loops, protect from external noise, signal boosting, and more. Digital panel meters also have various applications such as filter clogging monitors, weight measurement, conveyor rotation speed management, and many other uses. The equipment is known for its accuracy and stability while being in use.

    • Endress+Hauser
      • Switzerland Address: Kägenstrasse 2 Reinach BL, Basel, Switzerland

      Manufacturer Overview

      Endress+Hauser Group is based in Switzerland and has over 15,000 employees worldwide. Endress+Hauser manufactures measurement instrumentation and provides services for industrial process engineering. Endress+Hauser’s customers come from various industries including chemical, life sciences, energy, and water. Endress+Hauser’s products include those for level measurement, pressure measurement, software, industrial communication technologies, and liquid analysis. Endress+Hauser also offers services including project and commissioning, support and education, maintenance, and performance optimization. The company has an assortment of online tools to assist customers in services such as product selection.

    • Transcon
      • India Address: Sy. 102&103, Plot No. 11-13-173/15/15A/20/21, SIFCO Road, Balanagar, Hyderabad, Telangana, India

      Manufacturer Overview

      Transcon was established in 2003 and is based in Hyderbad, Telangana, as a manufacturer of energy-efficient tools. The company is the first industry to get certified with the stringent BEE 5 star rating. The company's product portfolio includes distribution transformers, power transformers, special designed transformers, lightning arrestors as well as servo controlled voltage stabilizers. The company also produces 33 kV voltage class and 25KVA distribution transformers while investing in an in-house engineering and R&D.

    • Zhejiang Volcano Electrical Technology Co.,Ltd
      • China Address: Building 2, No.159, Weishiliu Road, Economic Development Zone, Chengdong Street, Yueqing, Zhejiang, China

      Manufacturer Overview

      Zhejiang Volcano Electrical Technology Co., Ltd., established in 2000 with headquarters in China, is a manufacturer of high-voltage disconnectors and switches. The company's extensive product line includes vacuum circuit breakers, auto-reclosers, disconnectors, load break switches, and switchgear. These products are used in infrastructure-scale, industrial-scale, and processing and manufacturing plant-scale high-voltage electrical power supply and distribution systems. The company also offers consulting for integrated power supply and distribution systems as well as installation services.

    • Dalian Huayi Electric Power Electric Appliances Co.,Ltd
      • Dalian Huayi Electric Power Electric Appliances Co.,Ltd
        Surge Arrester

      • China Address: Pulandian district, Dalian city, Liaoning province, China

      Manufacturer Overview

      Dalian Huayi Electric Power Electric Appliances Co., Ltd. is a manufacturer of electric power equipment and appliances based in China. Founded in 2001, the company offers a diverse range of products including power transformers, distribution transformers, circuit breakers, switchgear, power capacitors, and more. Its products are designed to meet the diverse needs of electrical power systems, from generation and transmission to distribution. With a global outlook, the company serves a wide range of customers. Its products and services have been found in power generation facilities, utility companies, industrial complexes, and more.

    • Yamuna Cable Accessories Pvt. Ltd.
      • India Address: 3/101 Kaushalaya Park, Hauz Khas, New Delhi, India

      Manufacturer Overview

      Yamuna Cable Accessories Pvt. Ltd., founded in 1973, is a manufacturer and supplier in the electrical industry. Based in India, the company specializes in producing a wide range of cable accessories and electrical components. Its product offerings include cable joints, terminations, connectors, insulators, and more. With a strong afinity to quality and innovation, the company caters to various sectors, such as power distribution, telecommunications, and industrial applications. Its products are designed to ensure efficient electrical connections, contributing to enhanced safety and performance in diverse electrical systems.

    • M-System Co.,Ltd.
      • Japan Address: 5-2-55, Minamitsumori, Nishinari-ku, Osaka, Japan

      Manufacturer Overview

      M-System Co., Ltd., established in 1976 and headquartered in Tokyo, Japan, is a manufacturer of instrumentation and control devices. The company is a supply partner for the interfacing applications of analog/discrete signals, communication networks and intelligence systems. Products offered by the company are signal conditioners, temperature transmitters, and isolators. These devices serve the general purpose of converting, isolating, and transmitting signals in various industrial processes, ensuring accurate control and monitoring. It has received certifications such as ISO 9001 for its quality management systems.

    • Televes
      • Spain Address: Rúa B. de Conxo, 17, Santiago de Compostela, Spain

      Manufacturer Overview

      TELEVÉS S.A.U., established in 1958 and headquartered in Santiago de Compostela, A Coruña, Spain, is a manufacturer specializing in telecommunication infrastructure solutions. The company serves as a corporation, comprising over 20 industrial and service companies, offering a range of products and solutions such as antennas and sockets for television distribution. It also offers cabling and networking solutions for data communication infrastructures and provides indoor and outdoor luminaires, along with optical networks, utilizing transport systems that incorporate wavelength division multiplexing (WDM) technology. Within the hospitality sector, the company offers connectivity and digital entertainment solutions.

    • Siemens Energy
      • Germany Address: Otto-Hahn-Ring 6 81739 , Munich, Germany

      Manufacturer Overview

      Siemens Energy is a manufacturer and supplier of energy technology since 2020 and is headquartered in Munich, Germany. They design, manufacture and provide energy technology solutions that suit specific application requirements. Their offerings include power and heat generation, grid technologies, and renewable energy solutions like wind energy, and energy services aimed at optimizing performance and achieving maximum output. Siemens Energy provides services and products to a wide range of industries, including power generation, transmission and distribution, renewable energy, and industrial operations. Their products and services help these industries improve their energy efficiency with sustainability.

    • TDK Electronics
      • Japan Address: Nihonbashi Takashimaya Mitsui Building 2-5-1, Nihonbashi Chuo-ku, Tokyo, Japan

      Manufacturer Overview

      TDK Electronics, established in 1935 and headquartered in Tokyo, Japan, is a developer, manufacturer of electronic components and systems. Its product portfolio spans capacitors, ferrites, and inductors, including piezo and protection devices. The company also offers sensors and sensor systems, covering temperature, pressure, magnetic, and MEMS sensors. Furthermore, TDK provides power supplies, energy devices, magnetic heads, and more, all branded under TDK, EPCOS, InvenSense, Micronas, Tronics, and TDK-Lambda, catering to diverse electronic needs. The company operates about 20 development and manufacturing sites, along with a network of design, manufacturing locations, and sales offices situated in Asia, Europe, North America, and South America.

    • Tokyo Measuring Instruments Laboratory Co., Ltd.
      • Japan Address: 8-2, Minami-Ohi 6-chome, Shinagawa-ku, Tokyo, Japan

      Manufacturer Overview

      Established in 1954, Tokyo Measuring Instruments Laboratory Co., Ltd. (Tokyo Sokki Kenkyujo Co., Ltd.) is a manufacturer headquartered in Tokyo, Japan, specializing in stress measurement equipment. The company has developed a wide range of strain gauge transducers, essential components for stress measurement in general and civil engineering. The company also produces other instruments, such as the portable digital strainmeter for automatic multi-point measurements. With overseas representative offices in China, Germany, and 43 other countries, TML serves global customers, providing solutions for the safety and efficiency of structures.

    • AMETEK U.S. Gauge

      Manufacturer Overview

      AMETEK U.S. Gauge, established in 1904 and based in Horsham, PA, USA, is a manufacturer and supplier of pressure and temperature gauges. The company's product lineup includes pressure gauges, thermometers, diaphragm seals, and thermowells. These items are pivotal for applications in refining, chemical manufacturing, power generation, and HVAC systems. serving industries such as refinery, mining, oil and gas, and HVAC and refrigeration, these products play a significant role in optimizing operational processes. Its services include the provision of cooling elements, tire pressure gauges, and gauge rubber boots.

    • Hubbell Power Systems, Inc.

      Manufacturer Overview

      Hubbell Power Systems Inc. a company established in 1994 and based in Shelton, Connecticut is a manufacturer and supplier of lighting, electronic, and datacom devices and solutions. The company also provides tailored solutions for energy saving, extreme environment, wire and cable management, and foundation repair among others. The products such as chandeliers, address lights, LED lights, and wall mounts are used in Indoor and Outdoor residential lighting. The company was hailed as the World’s Most Ethical Company in 2023.

    • PHOENIX CONTACT
      • Germany Address: Flachsmarktstraße 8, Blomberg, Germany

      Company Overview

      Phoenix Contact is headquartered in Blomberg, Germany, originally founded in 1923. Phoenix Contact’s Israeli subsidiary was founded in 2006 and located in Quadima Tzoran. Phoenix Contact provides tools and components for e-mobility, power, infrastructure, process industry, production manufacturing, system manufacturing, and others. Phoenix Contact’s product lines include automate including cloud computing, connect including PCB terminal blocks, “mark, assemble, and install” including hand tools, “supply, charge, and protect” including power distributors, and “switch, measure, and monitor” including relays and optocouplers.

    • MULTI MEASURING INSTRUMENTS Co., Ltd.
      • Japan Address: 7F Akihabara Murai Building, 1-26 Kandasakumacho, Chiyoda-ku, Tokyo, Japan

      Company Overview

      Multi Measuring Instruments Co., Ltd. was founded in Chiba, Japan in 1986 and is headquartered in Tokyo. As per its namesake, Multi offers a vast array of measuring and testing equipment used across a number of industries. Some of their offerings include voltage meters, network testers, lux meters, cable locators, sound meters, various thermometers, gas analyzers, and water quality meters. Multi Measuring Instruments has a mission for its products to improve the global environment by detecting inefficiencies and leaks, developing products that will be useful for solar and wind power generation.

    • MacLean Power Systems
      • MacLean Power Systems
        ARRESTERS

      Company Overview

      MacLean Power Systems was established in 1925 and is based in Fort Mill, South Carolina as a manufacturer and supplier of products for electric utility, communication, and civil infrastructure markets. Its product portfolio includes connectors, anchors, hardware, arresters, insulators, fiberglass. The products offered by the company are crucial components in power delivery and communication systems, enabling safe and unfailing performance. The company started out by manufacturing lock nuts for railroads, but it has since expanded its product line to include various products for the electric utility, communication, and civil infrastructure markets.

    • Hitachi Energy Ltd.
      • Switzerland Address: Affolternstrasse 44 8050 Zürich, Switzerland

      Distributor Overview

      Hitachi Energy Ltd., established in 2018, based in Zurich, Switzerland, is a global technology supplier that is advancing a sustainable energy future. The company manufactures and supplies a comprehensive range of capacitors and filter solutions that improves the power quality of electrical networks. They serve customers in the utility, industry and infrastructure sectors with solutions and services across the chain. The company has a proven track record and unparalleled installed base in more than 140 countries. They employ around 38,000 people in 90 countries.

Arrester Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the arrester page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.

Number of Employees

  1. PHOENIX CONTACT: 20,300
  2. Tokyo Measuring Instruments Laboratory Co., Ltd.: 294
  3. M-System Co.,Ltd.: 283

Newly Established Company

  1. Siemens Energy: 2020 (4 years ago)
  2. true Power Limited.: 2013 (11 years ago)
  3. Goto Electrical Co.,Ltd: 2013 (11 years ago)

Company with a History

  1. PHOENIX CONTACT: 1923 (101 years ago)
  2. Watanabe Electric Industry Co. Ltd.: 1940 (84 years ago)
  3. Otowa Electric Industry Co., Ltd.: 1946 (78 years ago)

Global Distribution of Arrester Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
Japan Japan 6 31.6%
India India 5 26.3%
China China 3 15.8%
Switzerland Switzerland 2 10.5%
Germany Germany 2 10.5%
Spain Spain 1 5.3%

List of Arrester Products

Otowa Electric Industry Co., Ltd.

SPD for direct lightning strikes

100+ people viewing

■Features 1. Great protection ability Impulse current Iimp25kA, 50kA protects facilities and equipment from damage caused by direct lightning strik...

4 models listed

LD-C22EFS-SPD for direct lightning strikes
LD-C25EFSP-SPD for direct lightning strikes
LD-42EFS-SPD for direct lightning strikes
LD-45EFSP-SPD for direct lightning strikes

Sankosha Co., Ltd.

LCD monitor (for conductor) related power supply protector PW-200 type

80+ people viewing

Last viewed: 4 hours ago

A protector for protecting the power supply of LCD monitors. Used to protect various equipment from abnormal voltages such as lightning surges indu...

Sankosha Co., Ltd.

Metal products for communication 111A Lightning arrester Ordnance protector

170+ people viewing

Last viewed: 3 hours ago

A protector that protects metal communication equipment from abnormal voltages such as lightning surges. For 111A lightning arrester ammunition. ■...

3 models listed

111A1 type-Metal products for communication 111A Lightning arrester Ordnance protector
111D1 type-Metal products for communication 111A Lightning arrester Ordnance protector
111D2 type-Metal products for communication 111A Lightning arrester Ordnance protector

Sankosha Co., Ltd.

Communication metal products Protector A1 type/D1 type

240+ people viewing

Last viewed: 4 hours ago

A protector used to protect communication lines and equipment in railway equipment from abnormal voltages caused by lightning surges, etc. ■Type ...

2 models listed

A1 type-Communication metal products Protector A1 type/D1 type
D1 type-Communication metal products Protector A1 type/D1 type

Sankosha Co., Ltd.

Communication metal products 104-T type test wiring board protector A1 type

140+ people viewing

Dedicated protector for 104-T type test wiring board for railway communication equipment

Sankosha Co., Ltd.

Lightning countermeasures Surge protection element Ceramic arrester (GDT)

330+ people viewing

Last viewed: 4 minutes ago

Ceramic arrester is a surge protection device (Gas Discharge tube (GDT)) that utilizes the phenomenon of electric discharge. Since its initial comm...

10 models listed

U-1A-Lightning countermeasures Surge protection element Ceramic arrester (GDT)
U-1B-Lightning countermeasures Surge protection element Ceramic arrester (GDT)
U-2A-Lightning countermeasures Surge protection element Ceramic arrester (GDT)
U-2B-Lightning countermeasures Surge protection element Ceramic arrester (GDT)
U-3A-Lightning countermeasures Surge protection element Ceramic arrester (GDT)
U-3B-Lightning countermeasures Surge protection element Ceramic arrester (GDT)

Sankosha Co., Ltd.

Various protectors for communication Protectors that protect wind speed and direction alarms

150+ people viewing

Last viewed: 1 day ago

A protector that protects equipment from abnormal voltage induced in the transmission circuit of railway communication equipment. Used in combinati...

3 models listed

AP-NER type-Various protectors for communication Protectors that protect wind speed and direction alarms
AP-NER (100) type-Various protectors for communication Protectors that protect wind speed and direction alarms
AP-NER100L type-Various protectors for communication Protectors that protect wind speed and direction alarms

Sankosha Co., Ltd.

Various protectors for communications Coaxial lightning arresters for train radio systems

220+ people viewing

Last viewed: 1 day ago

■Lightning protection for power supply and wireless in one unit This product is a coaxial lightning arrester that connects to the LCX cable (leakag...

2 models listed

9DCX-JP-400AV-Various protectors for communications Coaxial lightning arresters for train radio systems
9DCX-JPL-400AV-Various protectors for communications Coaxial lightning arresters for train radio systems

Sankosha Co., Ltd.

Signal power system Power protector (for AC480V)

140+ people viewing

A protector that protects equipment from abnormal voltages such as lightning surges that invade the power lines of railway signal equipment. ■Feat...

2 models listed

S480-S type-Signal power system Power protector (for AC480V)
S480SPJ-E type-Signal power system Power protector (for AC480V)

Sankosha Co., Ltd.

Various protectors for communication S-E1-R type

120+ people viewing

Last viewed: 51 minutes ago

A protector that protects electronic equipment such as railway signals, data transmission, and remote control equipment from lightning surges. term...

Sankosha Co., Ltd.

Earth fault protection protector (for power) No.

230+ people viewing

Last viewed: 4 hours ago

■ Earth fault protection device for railway power related equipment Prevention of ground fault points and rise in ground potential of rails in the ...

4 models listed

No. 2-Earth fault protection protector (for power) No.
No. 2 follow-on flow suppression type-Earth fault protection protector (for power) No.
No. 3-Earth fault protection protector (for power) No.
No. 4-Earth fault protection protector (for power) No.

Sankosha Co., Ltd.

Signal power supply system WAGO terminal protector

240+ people viewing

Last viewed: 5 hours ago

■Safety device for main distribution board of WAGO ammunition module Attached to the main distribution board of the WAGO ammunition module, it prot...

4 models listed

WP-K1 type-Signal power supply system WAGO terminal protector
WP-K1-2 type-Signal power supply system WAGO terminal protector
WP-K2 type-Signal power supply system WAGO terminal protector
WP-K2-2 type-Signal power supply system WAGO terminal protector

Sankosha Co., Ltd.

Signal power supply system Protective device for steady state monitoring equipment

220+ people viewing

A protector that protects the regular monitoring equipment of railway signal equipment from abnormal voltages such as lightning surges.

7 models listed

LH type (for AC)-Signal power supply system Protective device for steady state monitoring equipment
LH type (for DC)-Signal power supply system Protective device for steady state monitoring equipment
S-K2-1-Signal power supply system Protective device for steady state monitoring equipment
S-K2-1W-Signal power supply system Protective device for steady state monitoring equipment
SU10L33 type-Signal power supply system Protective device for steady state monitoring equipment
SU10L36 type-Signal power supply system Protective device for steady state monitoring equipment

Sankosha Co., Ltd.

Protector for closure mounting for ATS-P ground terminal P-K2-3 type

120+ people viewing

Last viewed: 1 day ago

ATS-P (N) Protector for closure. ■Compatible with the following terminal blocks ・SBB-106-7P ・SBB-106-7R

Sankosha Co., Ltd.

Protector terminal board for closure mounting for ATS-P ground terminal S-K2-1 type/S-K2-1W type

130+ people viewing

Last viewed: 1 hour ago

Terminal board with protector for ATS-P ground terminal. Used for DC output side and condition input side.

2 models listed

S-K2-1 type-Protector terminal board for closure mounting for ATS-P ground terminal S-K2-1 type/S-K2-1W type
S-K2-1W type-Protector terminal board for closure mounting for ATS-P ground terminal S-K2-1 type/S-K2-1W type

Sankosha Co., Ltd.

Level crossing equipment box related Rectifier power protector

280+ people viewing

Last viewed: 21 hours ago

■F type series ・For rectifier power supply ・Integrated type for AC power supply/DC output

7 models listed

F type-Level crossing equipment box related Rectifier power protector
FN type-Level crossing equipment box related Rectifier power protector
Choke coil for F type (for 5A)-Level crossing equipment box related Rectifier power protector
Choke coil for FN type (for 10A)-Level crossing equipment box related Rectifier power protector
FNPJ-E type-Level crossing equipment box related Rectifier power protector
FN-PJ-T type-Level crossing equipment box related Rectifier power protector

Sankosha Co., Ltd.

Level crossing equipment box related Safety device for electronic level crossing equipment

200+ people viewing

Last viewed: 19 hours ago

Safety devices for terminal boards of electronic level crossing equipment. It is installed between electronic equipment such as electronic level cr...

6 models listed

T-24-Level crossing equipment box related Safety device for electronic level crossing equipment
T-200-Level crossing equipment box related Safety device for electronic level crossing equipment
T200-E-Level crossing equipment box related Safety device for electronic level crossing equipment
T-24A-Level crossing equipment box related Safety device for electronic level crossing equipment
T-200A-Level crossing equipment box related Safety device for electronic level crossing equipment
T200-AE-Level crossing equipment box related Safety device for electronic level crossing equipment

Sankosha Co., Ltd.

Track circuit protector ST-“” series

240+ people viewing

Last viewed: 5 hours ago

Protective devices for track circuits in railway signal equipment. This protector protects signal cables and equipment from abnormal voltages appli...

5 models listed

ST-200 type-Track circuit protector ST-“” series
ST-300 type-Track circuit protector ST-“” series
ST-400 type-Track circuit protector ST-“” series
ST-500 type-Track circuit protector ST-“” series
ST-2500 type-Track circuit protector ST-“” series

Sankosha Co., Ltd.

Shinkansen signal unit protector AR801 type

100+ people viewing

Last viewed: 4 hours ago

This product is used in the uninsulated track circuits of Shinkansen trains.

Otowa Electric Industry Co., Ltd.

Home arrester

50+ people viewing

■Features 1.Same dimensions as safety breaker 2. Can be installed on the distribution board using the empty space for one safety breaker. 3.Easy in...

Endress+Hauser Group Services AG

System products and data managers HAW569 Surge Aresta

200+ people viewing

Last viewed: 4 hours ago

Field -installed Surge Arresta ■ Applications HAW569 Surge Arresta is used to prevent the electronic device in the field device from breaking down...

Endress+Hauser Group Services AG

System products and data managers HAW562 Surge Aresta

170+ people viewing

HIC 60715 compliant DIN rail compatible ■ Applications AW562 Surge Arresta is used to prevent electronic devices from breaking down due to overvol...

DX Antenna Co., Ltd.

Protector (Arrester type) 10~1,000MHz band GNH1A

20+ people viewing

A protector that protects transmission equipment from lightning surges from the transmission line. As a protection element for lightning surge pro...

Showden Co., Ltd.

Arrester protection element

390+ people viewing

Last viewed: 1 day ago

■Limit abnormal voltage to a non-hazardous value Overhead lines and communication cables connected to communication equipment are susceptible to ex...

10 models listed

M50--Arrester protection element
M51--Arrester protection element
A80--Arrester protection element
A81--Arrester protection element
A83--Arrester protection element
S2--Arrester protection element

Showden Co., Ltd.

Safety device for preventing reverse flash flash

510+ people viewing

Last viewed: 8 hours ago

■Safety device for preventing reverse flash by neutralizing wire ring and insulating wire ring This is a reverse flash protection safety device bas...

6 models listed

S-“”DC-VR-Safety device for preventing reverse flash flash
S-“”DC-CVR-Safety device for preventing reverse flash flash
S-“”DC-PCM-Safety device for preventing reverse flash flash
S-“”DC-INT-Safety device for preventing reverse flash flash
S-“”AC-VR-Safety device for preventing reverse flash flash
S-“”AC-CV-Safety device for preventing reverse flash flash

Tokin America, Inc

Protective components GDT (ceramic gas discharge tube)

240+ people viewing

Last viewed: 4 hours ago

■Summary YAGEO offers complete circuit protection solutions with overvoltage protection components and overcurrent protection components. TVS, MOV,...

10 models listed

B32-Protective components GDT (ceramic gas discharge tube)
B32-H2.5-Protective components GDT (ceramic gas discharge tube)
4532-Protective components GDT (ceramic gas discharge tube)
2RE-2-Protective components GDT (ceramic gas discharge tube)
2RE-3-Protective components GDT (ceramic gas discharge tube)
2R-4-Protective components GDT (ceramic gas discharge tube)

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