森長電子 List of Products and Services

This catalog includes specifications and diagrams for "high-speed line lightning protection units" for power supply, communication and signal use, and other lightning protection-related products. It also introduces the causes of lightning damage, lightning protection measures for electrical equipment, and case studies of these measures. Technical documents and frequently asked questions are also included, so please use them to assist in your selection. 【Contents (Example)】 ■ Features of high-speed line lightning protection units ■ Lightning damage countermeasures ■ Case studies ■ High-speed line lightning protection units for power supply ■ High-speed line lightning protection units for communication and signals ■ 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.

• Lightning protection

The "ALP/PLP" is a high-speed line lightning protection unit that uses surge energy attenuation methods. 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 - High-performance, high-capacity general-purpose series - Supports a wide range of applications including various signals and power supplies ■ VAJ Series - Large-capacity power supply series - Installed in the main circuit to prevent the intrusion of large-scale lightning surges such as direct strikes ■ VTJ Series - Plugin-type signal series - 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.

• Lightning protection

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.

• Lightning protection

The "MLC-02" is a product that detects and counts lightning surges. It allows you to select the sensitivity of lightning surge detection 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.

• Lightning protection

The "LDJ SERIES" is a high-performance low-profile series of high-speed line lightning protection units using surge energy attenuation technology. It is a RoHS-compliant surge protective device (SPD) that can accommodate both signal and power applications. The lightning protection performance is equivalent to the high-performance standard VNJ series and can be mounted on a DIN rail. 【Features】 ■ Normal/deteriorated 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 document or feel free to contact us.

• Lightning protection

The "ACB" is a device that automatically resets the breaker in response to lightning surges or temporary overloads that cause the breaker to trip from the commercial power system. When the breaker trips, it automatically resets after approximately 5 seconds. The control circuit of the auto control breaker is protected by a high-speed line lightning protection unit that uses 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 materials or feel free to contact us.

• Lightning protection

The "ACB PL Series" is a device that automatically resets circuit breakers in response to lightning surges and temporary overloads that invade commercial power systems. The reset time for the circuit breaker can be set arbitrarily, and the number of resets is also displayed. There are simpler and lower-priced models like the "PL1" compared to conventional products, as well as compact and high-function models like the "PL5," which range from low capacity (30A) to high capacity (100A). 【Features】 ■ Reset time for the circuit breaker can be set arbitrarily ■ Number of resets displayed from 0 to 9, LED display *For more details, please refer to the PDF document or feel free to contact us.

• Lightning protection

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. The lightning surge voltage is limited to below 1.5kV, achieving 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.

• Lightning protection

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.

• Lightning protection

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 its 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.

• Lightning protection

The "VNJ Series" is a high-speed lightning protection unit that achieves high reliability in lightning protection through different surge energy attenuation methods. It is available 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 signals - Complies with JIS standard C 5381-21 Category C2, D1 - Contact output function for normal/deteriorated states (optional: status LED display unit) - High surge withstand capability with a maximum discharge current of 20kA ■ For power supplies - Complies with JIS standard C 5381-1 Class II, III - Lamp display and contact output function for normal/deteriorated states *For more details, please download the PDF or feel free to contact us.

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