森長電子 List of Products and Services

In data centers, stable operation 24/7 is essential, and system outages caused by lightning strikes can lead to significant losses. In particular, protecting network lines is a critical challenge in maintaining the availability of data centers. Overvoltage from lightning can cause network equipment failures, increasing the risk of data loss and service interruptions. The high-speed line lightning protection unit "VAJ Series" protects data centers from these risks. 【Usage Scenarios】 - Network lines in data centers - Power lines in server rooms - Protection of communication equipment 【Benefits of Implementation】 - Reduction of system downtime due to lightning strikes - Mitigation of data loss risks - Realization of a stable network environment

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In the manufacturing industry, stable operation of production equipment is essential. Power outages caused by lightning strikes and equipment failures can lead to decreased production efficiency and significant losses. Factories that use many precision instruments and control systems are particularly susceptible to the effects of lightning surges, making countermeasures urgent. The high-speed line lightning protection unit "VAJ Series" protects equipment from lightning surges and supports stable operation of production lines. 【Usage Scenarios】 - Control systems within the factory - Power supply sections of production lines - Communication lines 【Benefits of Implementation】 - Reduction of equipment downtime risk due to lightning strikes - Maintenance of production efficiency - Prolonged equipment lifespan - Reduction of unexpected repair costs

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In the food processing industry, temperature management is extremely important. If refrigeration and freezing equipment stops due to a power outage, there is a possibility of food quality deterioration and safety issues. In particular, inadequate temperature management increases the risk of foodborne illness. The Auto Control Breaker 'ACB' supports the continuation of temperature management by automatically resetting the breaker during a power outage. 【Usage Scenarios】 - Power supply for refrigeration and freezing equipment - Manufacturing lines requiring temperature management - Risk avoidance during power outages 【Benefits of Implementation】 - Maintaining food quality through continued temperature management during power outages - Reducing food waste - Lowering the risk of foodborne illness

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In the retail industry's POS systems, a stable communication environment is essential. Power outages caused by lightning strikes or surges (abnormal voltage) can lead to the shutdown of POS systems and data loss, potentially causing significant disruptions to business operations. This is particularly critical for POS systems that require real-time data processing, such as credit card payments, where lightning protection is an important issue. The high-speed line lightning protection unit 'VNJ Series' addresses these challenges and supports the stable operation of POS systems. 【Usage Scenarios】 * Stores with POS system installations * Credit card payment terminals * Stores utilizing network lines 【Benefits of Implementation】 * Reduction of POS system downtime * Decrease in the risk of data loss * Continuation of service provision to customers

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In the energy industry, it is crucial for monitoring and control systems to protect against surges (abnormal voltages) caused by lightning and to maintain stable operations. Particularly in remote monitoring systems and control systems for critical infrastructure, a momentary power outage or malfunction can lead to significant losses. The high-speed line lightning protection unit "VNJ Series" achieves highly reliable lightning protection through different surge energy attenuation methods, minimizing system downtime. 【Usage Scenarios】 - Monitoring and control systems for power plants, substations, and transmission lines - Monitoring and control systems for oil and gas plants - Monitoring and control systems for renewable energy facilities 【Benefits of Implementation】 - Reduced risk of system shutdown due to lightning strikes - Extended equipment lifespan - Improved operational efficiency through stable system operations

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In transportation and operation management systems, the stability of communication lines is essential. Surges (abnormal voltage) caused by lightning can lead to equipment failures and system shutdowns, potentially having serious impacts on operations. To protect critical infrastructure such as signal systems, operation management systems, and surveillance cameras, reliable lightning protection measures are required. The high-speed line lightning protection unit 'VNJ Series' was developed to address these challenges. 【Usage Scenarios】 * Signal systems * Operation management systems * Surveillance camera systems * Various systems utilizing communication lines 【Benefits of Implementation】 * Reduction of system shutdown risks due to lightning strikes * Cost savings through the protection of communication equipment * Realization of stable operation management * Maintenance of a safe transportation infrastructure

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In research institutions, the safety of data is extremely important to protect precise experimental data and valuable research results. Lightning strikes and power anomalies can cause data loss and equipment failure, potentially having a serious impact on research activities. The high-speed line lightning protection unit "VNJ Series" achieves high-reliability lightning protection through different surge energy attenuation methods, safeguarding research data. 【Usage Scenarios】 - Network equipment in laboratories - Data centers - Experimental devices 【Benefits of Implementation】 - Reduced risk of data loss - Extended equipment lifespan - Ensured continuity of research activities

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In remote classes at educational institutions, a stable internet connection is essential. Line troubles caused by lightning can lead to interruptions in classes and data loss, potentially resulting in lost learning opportunities. This is especially important for interactive online classes and the delivery of video content, where the stability of the connection is crucial. The high-speed line lightning protection unit "VNJ Series" protects communication lines from lightning surges and supports the stable operation of remote classes. 【Usage Scenarios】 - Schools and educational institutions conducting remote classes - Online learning platforms - Educational video distribution services 【Benefits of Implementation】 - Reduced risk of line troubles due to lightning - Stabilization of remote classes and assurance of learning opportunities - Smooth delivery of educational content

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In data centers, stable operation 24/7 is essential, and system outages caused by lightning strikes can lead to significant losses. In particular, lightning surges to communication lines and power systems increase the risk of equipment failure and data loss. The high-speed line lightning protection unit "VNJ Series" was developed to protect data centers from these risks and enhance system availability. 【Usage Scenarios】 - Protection of communication and network equipment - Protection of servers and storage - Protection of power equipment 【Benefits of Implementation】 - Reduction of the risk of system outages due to lightning strikes - Prolonged lifespan of equipment - Mitigation of the risk of data loss

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In the manufacturing industry, stable operation of equipment is a crucial factor that affects production efficiency. Power outages caused by lightning strikes and malfunctions of electronic devices can lead to production line stoppages and data loss, resulting in significant losses. Especially in manufacturing environments that use precise electronic devices such as FA systems and control systems, lightning protection measures are essential. The high-speed line lightning protection unit "VNJ Series" protects these devices from lightning surges through a surge energy attenuation method, supporting stable operation. 【Application Scenes】 - Factory production lines - Control systems - Measuring instruments 【Benefits of Implementation】 - Reduction of equipment downtime - Mitigation of data loss risks - Improvement of productivity

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In financial institutions, the stable operation of information and communication infrastructure is essential. Surges (abnormal voltages) caused by lightning can lead to network equipment failures and data loss, potentially disrupting business operations and affecting service delivery to customers. Particularly in systems that handle financial transactions and customer information, lightning protection measures are crucial. The high-speed line lightning protection unit 'VNJ Series' achieves high reliability in lightning protection, safeguarding the information assets and business continuity of financial institutions. 【Usage Scenarios】 - Network equipment in financial institutions (routers, switches, etc.) - Data centers - ATMs - Surveillance camera systems 【Benefits of Implementation】 - Reduces the risk of system downtime due to lightning strikes - Lowers the risk of information leakage and data loss - Enhances reliability from customers - Ensures business continuity

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In the telecommunications industry, stable network operations are essential. Surges caused by lightning can lead to equipment failures and data loss, potentially resulting in service interruptions. To protect critical infrastructure such as fiber optic lines and base stations, reliable lightning protection measures are required. The high-speed line lightning protection unit 'VNJ Series' achieves high reliability in lightning protection through different surge energy attenuation methods. 【Usage Scenarios】 * Base stations * Data centers * Communication lines * LAN equipment 【Benefits of Implementation】 * Protection of communication equipment * Reduction of system downtime * Provision of stable communication services

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In the automotive manufacturing industry, stable operation of the production line is extremely important. Power outages or circuit breaker trips due to overload can cause line stoppages, significantly reducing production efficiency. This is particularly true in factories that operate 24 hours a day or have equipment that consumes a large amount of electricity, where breaker issues can lead to substantial losses. The Auto Control Breaker (ACB) automatically resets during a breaker trip, minimizing downtime of the production line and contributing to the maintenance of production efficiency. 【Usage Scenarios】 * Automotive manufacturing production lines * Painting booths * Welding lines * Press machines 【Benefits of Implementation】 * Improved production line operating rates * Reduced recovery time during power outages * Increased productivity * Cost reduction

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In commercial facilities, many electrical systems such as lighting and air conditioning are in operation, and a power outage can lead to a decline in customer service and affect products. As energy-saving measures require efficient operation of equipment, rapid recovery from power outages also contributes to reducing electricity consumption. The Auto Control Breaker (ACB) automatically restores the breaker during a power outage, minimizing equipment downtime and supporting energy-efficient operations. 【Usage Scenarios】 - Power management for the entire commercial facility - Power protection for critical equipment such as emergency lighting, elevators, and air conditioning systems - Stabilization of power supply as part of energy-saving measures 【Benefits of Implementation】 - Reduction of recovery work during power outages - Maximization of equipment operating time - Cost reduction through optimization of electricity consumption

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In manufacturing equipment maintenance, the stable operation of production lines is crucial. Power outages and breaker malfunctions can lead to losses from production stoppages and burdens from recovery work. In particular, breaker tripping due to lightning surges or temporary overloads can cause unexpected equipment shutdowns, resulting in significant issues. The Auto Control Breaker (ACB) was developed to address these challenges. 【Usage Scenarios】 * Power protection for critical equipment within factories * Maintenance of stable operation of production lines * Automatic recovery from breaker tripping due to lightning surges 【Benefits of Implementation】 * Reduction of equipment downtime * Alleviation of recovery work burdens * Improvement in productivity

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In this document, we present frequently asked questions about lightning arresters in a Q&A format. We answer various questions, including the differences between high-speed line lightning protection units and general lightning arresters, their effectiveness against lightning surges entering through grounding wires, and the lifespan of high-speed line lightning protection units. If you have any questions, please feel free to contact us. 【Content (partial)】 ■Q. What is the main difference between high-speed line lightning protection units and general lightning arresters? ■Q. Is there any effectiveness against lightning surges entering through grounding wires? ■Q. What is the lifespan of a high-speed line lightning protection unit? ■Q. What is the difference between a lightning rod and a lightning arrester (SPD)? ■Q. Where should a high-speed line lightning protection unit be installed? *For more details, please download the PDF or feel free to contact us.

• Other safety equipment

This document introduces lightning protection measures using high-speed line lightning protection units. It explains lightning protection measures such as "external lightning protection systems" and "internal lightning protection systems," as well as the causes of lightning damage and the types and mechanisms of SPDs (Surge Protective Devices). The content is designed to be easily referenced when considering lightning protection measures. Please feel free to download and take a look. 【Contents (partial)】 ■ Lightning protection measures ■ Lightning rods ■ SPD (Surge Protective Device) ■ Causes of lightning damage ■ Lightning protection measures for electrical equipment *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Other safety equipment

This document introduces the selection of surge protectors for power supply. Surge protectors for power supply are selected based on the circuit configuration, voltage, and current of the power line to be installed. The circuit configuration and rated voltage, among other details, are clearly presented in a table. Additionally, it explains the setting positions of surge protectors and breakers for power supply. Please feel free to download it for your reference. [Contents] ■ Circuit configuration ■ Rated voltage ■ Rated current ■ Setting positions of surge protectors and breakers for power supply *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment in CCTV cameras. CCTV cameras are becoming smaller and more high-performance, which tends to make them more vulnerable to lightning. In particular, since they are installed outdoors to monitor roads, rivers, and flooding, they are susceptible to both direct and induced lightning strikes. To protect important social infrastructure equipment, our lightning arresters are implemented in the equipment housing to safeguard against lightning damage. 【Case Overview】 ■ Issue: Surveillance cameras for road information, etc., are installed at high outdoor locations, resulting in a significant amount of equipment damage due to lightning. ■ Countermeasure: Lightning arresters and auto-control breakers are built into the equipment housing of the surveillance cameras. *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment in disaster prevention administrative wireless systems. Disaster prevention administrative wireless systems are essential equipment for local governments' crisis management, serving as a means of communication to convey emergency information to residents. In recent years, there has been an increasing trend of operational failures and damage to wireless substation equipment due to lightning strikes, making it crucial that these systems function reliably when needed. It is necessary to implement lightning protection measures that do not compromise the functionality of such highly public wireless equipment. Our company often installs automatic power lightning protection devices with built-in lightning arresters and auto control breakers, as well as emergency power switching panels. 【Main Lightning Protection Products】 ■ Lightning Arresters for Power Supply ・VAJ Series ・VNJ Series ■ Lightning Protection Related Products ・ALPS Series ・Emergency Power Switching Panels *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning protection measures for electrical equipment at water-related treatment facilities. Water supply and sewage facilities are critical infrastructure where shutdowns are not permitted. However, many of these facilities are located in suburban or mountainous areas with frequent thunderstorms, and they often contain instrumentation equipment and telemetry, which are relatively susceptible to lightning strikes, leading to a high incidence of lightning damage. Our lightning arresters are installed on power supplies, communication lines, instrumentation signal lines, inverters, and various equipment both inside and outside the facility, protecting the equipment from lightning. 【Case Overview】 - Lightning arresters are installed on the power supply sections of telemetry panels and instrumentation panels, as well as on telemetry communication lines and measurement signals from field equipment. - We also propose installation on the power supply and signal lines of measurement equipment on the field side. - In cases where wiring distances are long, lightning arresters are installed on self-owned communication lines between equipment and control signal lines between panels. *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment at dams. Dams are located in mountainous areas with a high frequency of lightning strikes, and due to the distance between the monitoring station and the equipment within the dam body, an environment conducive to potential differences is created. Lightning strikes in the vicinity have caused damage to dam management equipment, and if the dam management system stops, it could lead to the worst-case scenario, making reliable lightning protection measures necessary. Our company has installed the VAJ series at the main power panel of the electrical room to protect the monitoring station's equipment from direct lightning surges, and we have provided grounding SPDs to equalize potential between grounding electrodes. [Case Overview] - Proposals for lightning protection measures suitable for the local situation and design of lightning protection panels - Implementation of countermeasures for equipment at risk of lightning surges, including meteorological observation devices, discharge warning systems, CCTV cameras, telephone lines, leakage flow meters, water level gauges, seismometers, audit corridor lighting, and signal lines between the monitoring station and each gate. *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment in factories. In advanced factories, all equipment is highly digitized and interconnected through a network. As a result, damage in one area can often spread throughout the entire network, making it necessary to consider lightning protection measures for the entire factory. Our company focuses on lightning protection measures through on-site surveys, and we have a track record of implementing these measures in factories across various locations. We have received particularly high praise for our countermeasures concerning power equipment, such as servers, inverters, and DC power supplies, which are significantly affected by lightning, as well as instrumentation devices that are essential for plant operations. 【Main Lightning Protection Products (Partial)】 ■ Surge Protectors for Power Supply ・VAJ Series ・VNJ Series ■ Surge Protectors for Communication and Signal ・VTJ Series ・VCJ Series *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment at fire departments. Fire departments are critical facilities where the maintenance of power and communication lifelines is required at a high level even during emergencies. To support prompt and accurate command operations and disaster site activities in response to diversifying and large-scale disasters and increasing emergency requests, it is essential to implement lightning protection measures that do not compromise the functionality of communication equipment. Due to the importance of operations related to human life, our company proposes various measures to prevent system shutdowns caused by lightning damage and installs lightning protection devices for power supply, communication, and signaling. [Main Lightning Protection Products (Partial)] ■ Lightning protection devices for power supply - VAJ Series - VNJ Series ■ Lightning protection devices for communication and signaling - VTJ Series - VCJ Series *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment in universities (research facilities). Universities (research facilities) have many expensive devices installed, such as precision instruments, research equipment, and supercomputers. In addition to the damage to the equipment itself caused by lightning strikes, the interruption of experiments, loss of observational data, and disappearance of research data due to lightning damage can result in even greater losses. Our company has supplied a large number of lightning protectors, primarily for high-capacity power supplies, to a science and engineering university located in a mountainous area where lightning strikes are frequent and concerns about lightning damage to various equipment were raised. 【Case Overview】 ■ Issues - Attention is needed to ground lightning surges that can wrap around from lightning strikes to lightning rods and other devices. - In cases where there are multiple buildings, the ground potential difference between buildings can cause lightning surges to propagate not only to the building that was struck but also to nearby buildings. ■ Countermeasures: We propose VAJ-type lightning protectors for high-capacity power supplies at the main power distribution panel of floors with critical loads, and VNJ-type and VTJ-type lightning protectors for communication lines and signal lines depending on the equipment situation. *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

We would like to introduce examples of lightning damage countermeasures for electrical equipment at aviation facilities. Airports, with their vast land area and tall structures such as terminal buildings and control towers, have seen an increase in lightning damage frequency due to recent enhancements in transport capacity, which have led to increased flights and larger aircraft being relocated to mountainous areas. To establish a highly reliable system essential for airport operations, lightning protection measures are also indispensable. Our company proposes various lightning protection measures considering different types of lightning damage for various electrical and communication equipment, including apron lighting systems, and installs surge protectors for power supply and communication/signaling purposes. [Main Lightning Protection Products (Partial)] ■ Surge Protectors for Power Supply - VAJ Series - VNJ Series ■ Surge Protectors for Communication and Signaling - VTJ Series - VCJ Series *For more details, please download the PDF or feel free to contact us.

• Other power sources
• Communications
• Other safety equipment

This catalog includes specifications and diagrams for lightning protection products related to power supply, communication and signaling, and other lightning protection-related products for "high-speed line lightning protection units." We also introduce the causes of lightning damage, lightning protection measures for electrical equipment, and case studies of such measures. Technical documents and frequently asked questions are also included, so please use them as a reference for your selection. 【Contents (Example)】 ■ Features of high-speed line lightning protection units ■ Lightning damage countermeasures ■ Case studies of countermeasures ■ High-speed line lightning protection units for power supply ■ High-speed line lightning protection units for communication and signaling ■ Lightning protection-related products ■ Technical documents and frequently asked questions *For more details, please refer to the PDF document or feel free to contact us.

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The "ALP/PLP" is a high-speed line lightning protection unit that uses surge energy attenuation technology. We offer a variety of series, including high-performance standard series and large-capacity power supply series. We propose more effective lightning protection measures in real fields by examining better countermeasure methods through on-site surveys and adopting high-speed line lightning protection units. 【Product Lineup (Example)】 ■ VNJ Series - General-purpose series with high performance and high capacity - Supports a wide range of applications including various signals and power supplies ■ VAJ Series - Series for large-capacity power supplies - Installed in the main circuit to prevent the intrusion of large-scale lightning surges such as direct lightning strikes ■ VTJ Series - Plug-in type series for signals - Compatible with various signal lines for communication, measurement, control, etc. *For more details, please refer to the PDF materials or feel free to contact us.

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The "Grounding SPD Panel" is a product for grounding and equipotential bonding. 【Features】 ■ Connection between enclosures is possible ■ Combinations tailored to grounding design are also possible *For more details, please refer to the PDF document or feel free to contact us.

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The "MLC-02" is a product that detects and counts lightning surges. It allows you to select the lightning surge detection sensitivity from 8 levels. When counting, it outputs a contact signal indicating that a surge has been detected and backs up the count value during a power outage. 【Features】 ■ Detects lightning surges using a current sensor method ■ Allows selection of lightning surge detection sensitivity from 8 levels ■ Outputs a contact signal indicating surge detection during counting ■ Backs up the count value during a power outage *For more details, please refer to the PDF document or feel free to contact us.

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The "LDJ Series" is a high-performance low-profile series of high-speed line lightning protection units that use surge energy attenuation methods. It is a RoHS-compliant surge protective device (SPD) that can be used for both signal and power applications. The lightning protection performance is equivalent to the high-performance standard VNJ series, and it can be mounted on a DIN rail. 【Features】 ■ Normal/deterioration state contact output function ■ RoHS compliant ■ Lightning protection performance is equivalent to the high-performance standard VNJ series *For more details, please refer to the PDF materials or feel free to contact us.

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The "ACB" is a device that automatically resets the breaker in response to lightning surges and temporary overloads that invade from the commercial power supply system. When the breaker trips, it automatically resets after about 5 seconds. The control circuit of the auto control breaker is protected by a high-speed line lightning protection unit using surge energy attenuation methods, making it strong against lightning surges and ensuring high reliability. 【Features】 ■ Automatic reset function ■ Permanent trip function ■ Permanent trip reset function ■ Counter function *For more details, please refer to the PDF document or feel free to contact us.

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The "ACB PL Series" is a device that automatically restores circuit breakers after they are tripped due to lightning surges or temporary overloads from commercial power systems. The restoration time of the circuit breaker can be set arbitrarily, and the number of restorations is also displayed. There are simple and low-cost models like "PL1" compared to conventional products, as well as compact and high-function models like "PL5" that range from low capacity (30A) to high capacity (100A). 【Features】 ■ The restoration time of the circuit breaker can be set arbitrarily ■ The number of restorations is displayed from 0 to 9, with LED indication *For more details, please refer to the PDF document or feel free to contact us.

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The "VAJ Series" is a high-speed line lightning protection unit for power supplies that complies with JIS standards (JIS C 5381-11) Class I and II. It has a surge withstand capability of 25kA per line for a direct lightning current waveform defined as 10/350μs. It limits lightning surge voltage to below 1.5kV and achieves high protection performance through a combination with conventional surge energy attenuation methods. 【Features】 ■ Impulse current (I imp): 25kA (10/350μs) ■ Voltage protection level (Up): below 1.5kV ■ Displays abnormal occurrences during operation ■ Outputs abnormalities externally ■ Safety measures *For more details, please refer to the PDF document or feel free to contact us.

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The "VCJ Series" is a high-speed line lightning protection unit that uses a surge energy attenuation method. It complies with JIS standard C5381-21 categories C2 and D1, and its performance and lineup cover those equivalent to the "VTJ Series." With its slim card-in design and customizable base unit, it flexibly meets needs that could not be accommodated due to space constraints in the past. 【Features】 ■ Surge energy attenuation method ■ Complies with JIS standard C5381-21 categories C2 and D1 ■ Space-saving design with slim card-in method ■ Base unit can be customized according to installation space and input/output terminals ■ Performance and lineup cover those equivalent to the VTJ Series *For more details, please refer to the PDF document or feel free to contact us.

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The "VTJ Series" is a plug-in type high-speed lightning protection unit for signal lines that complies with JIS standards categories C2 and D1. Thanks to the plug-in design and bypass function, maintenance work is easy as there is no interruption in the circuit even when the main module is removed. Additionally, the dedicated socket can be easily mounted using a DIN rail. It can also serve as an input/output terminal block, achieving space-saving benefits. 【Features】 ■ Plug-in type ■ Complies with JIS standards categories C2 and D1 ■ Compatible with various signal lines for communication, measurement, control, etc. ■ Easy maintenance ■ Space-saving design *For more details, please refer to the PDF document or feel free to contact us.

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The "VNJ Series" is a high-speed lightning protection unit that achieves high reliability in lightning protection measures through different surge energy attenuation methods. We offer a lineup for various signals such as communication, measurement, control, video, LAN, etc., as well as for single-phase and three-phase AC power supplies (2A to 50A) and DC power supplies. 【Features】 ■ For Signal Use - Complies with JIS standard C 5381-21 Category C2, D1 - Contact output function for normal/degraded states (optional: status LED display unit) - High surge withstand capability with a maximum discharge current of 20kA ■ For Power Use - Complies with JIS standard C 5381-1 Class II, III - Lamp display and contact output function for normal/degraded states *For more details, please download the PDF or feel free to contact us.

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