昭電 List of Products and Services

A comprehensive unveiling of Showden's lightning protection products that keep the operation of important equipment and devices supporting an information society running smoothly! This single volume covers everything about lightning damage countermeasures, from basic knowledge to devices and systems! A new high-end model of communication and signal SPD with alarm contacts and fault indication has also been introduced, making this the latest catalog. [Contents] ■ Basic knowledge of lightning damage countermeasures ■ Key points for lightning damage countermeasures ■ Product introduction - Lightning protection systems - Surge protection devices - Wiring systems *For more details, please check the download.

In offices and factories, various networks such as information communication systems and security systems are established and utilized as a foundation for safe and stable corporate activities. The SPD from Showden protects network equipment and devices from the greatest threat, lightning, and supports stable operations. 【Information on Lightning Damage Prevention Products】 ○ADN Series → High-end model of PV SPD connected to PCS, connection boxes, and power distribution boards. ○ASG Series → High-end model of communication and signal SPD with alarm contacts and fault indication. ○APN-4 Series → High-end model of power supply SPD compatible with maximum discharge current of 40kA for 8/20μs. For more details, please contact us or download the catalog.

At Showden Co., Ltd., we have introduced a "short-circuit current testing device" aimed at further enhancing the safety of our developed products. This device evaluates the safety of equipment connected to power sources (such as power supply SPDs, power supplies, and distribution boards) against high alternating and direct currents. The device allows for the simulation of short-circuit accidents in alternating current power sources, direct current power sources, and solar power systems through arbitrary adjustments of output voltage and current, and will be utilized in the development of various products. 【Features】 ■ Capable of conducting new JIS (JIS C 5381-11:2014) safety tests ■ The main power circuit can handle high currents, while the auxiliary power circuit can apply high voltages ■ An impulse generator can be combined to apply impulse voltage and current to the sample while it is powered ■ Control over the timing of auxiliary power activation and the timing of impulse application For more details, please refer to the catalog or feel free to contact us.

The "GN Series" is an SPD for power supplies that complies with JIS C 5381-11. It balances cost performance with the necessary surge capacity, making it suitable for systems that require reliability. There are two models in the lineup: the mid-range model "GN-2 Series" with Imax 20kA and the standard model "GN-1 Series" with Imax 10kA. 【Features】 ■ Electric fault indication and electric alarm contacts (GN-2 Series) ■ Complies with Class II SPD for low voltage in the Standard Specifications for Public Building Construction (2016 edition) ■ Can be connected to the primary side of a leakage breaker ■ Additional model names that include specified SPD separators *For more details, please refer to the catalog or feel free to contact us.

The lightning protection product for solar power generation, the PV SPD "ADN Series," is designed to protect components such as the PCS (Power Conditioner), solar panels, junction boxes, and collection boxes from induced lightning and direct strikes that invade the DC system of PV systems. According to a survey by NEDO (New Energy and Industrial Technology Development Organization), the number of PV damage incidents due to lightning is on the rise. The latest data from 2008 indicates that approximately 28% of all damages are attributed to lightning, posing risks not only to expensive equipment like PCS but also to power generation interruptions. The PV SPD "ADN Series" features an internal separation mechanism that allows for the safe disconnection of the SPD element from the DC system in the event of degradation or failure due to lightning. It is a high-end model equipped with plug-in capabilities, SPD degradation indicators, and alarm outputs. For more details, please contact us or download the catalog.

The "BCP Solution Guide for Solar Power and Wind Power Generation" is a guidebook that summarizes key measures to protect solar and wind power systems from lightning damage. It introduces countermeasures and necessary items for various systems, from mega-solar installations to medium-sized systems on building rooftops and wind power systems. [Contents] ■ Countermeasure examples by power generation system (large-scale, medium-scale solar power, wind power) ■ Lightning damage countermeasure solutions, etc. *If you would like to request the guidebook, please [download the PDF] or [contact us].

The "AGN Series" is a power supply SPD (surge protective device) that protects all power supply equipment from lightning surges that enter through distribution lines. In the event of a failure due to lightning energy exceeding expectations, it employs the safety disconnection technology "SITS" that can interrupt short-circuit currents. Additionally, it is a high-end model featuring a plug-in design, fault indication, and alarm contacts (optional). 【Features】 ■ Complies with JIS (JIS C 5381-11:2014) and supports test classes II and I ■ Adoption of safety disconnection technologies "SIT" and "SITS" ■ Fault indication and alarm contacts linked to the thermal separator built into the SPD ■ Can be connected to the primary side of a leakage breaker ■ Unified naming to prevent selection errors of separators (fuses) *For more details, please contact us or refer to the catalog.

The "Water Surface Connection Box" is a connection box designed to be installed on the same float (floating island) as water surface solar panels, with a depth dimension minimized as much as possible. It features specifications for shading countermeasures for PV panels caused by the connection box and can be used in conjunction with rooftop installations. It includes functions such as the safety disconnection technology system "SITS." 【Features】 ■ Dustproof and waterproof specifications (IP55) ■ Standard housing material is stainless steel ■ Can be locked at any opening angle ■ Compact design ■ SITS-compatible safety disconnection technology *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

Showa Denko's slogan is "Providing safety and trust in an information society." We are engaged in various businesses in the fields of lightning damage prevention, earthquake measures, network, security, and facilities to protect information and communication networks from disasters and troubles. Our strength lies in our ability to support BCP (Business Continuity Planning) and crisis management in a one-stop and comprehensive manner, from product manufacturing and sales to system planning, design, maintenance, construction, and consulting. To provide more reliable safety and peace of mind, we will realize services that meet our customers' needs. 【Business Activities】 ■ Manufacturing and sales of power and communication safety devices, communication terminal boards, wiring panels, and distribution boards ■ Manufacturing and sales of seismic isolation devices, earthquake-resistant frames, and free access floors ■ Manufacturing and sales of optical fiber network-related equipment ■ Sales of LAN-related equipment, various transmission switches, PBX, etc. ■ Comprehensive facility construction for electrical, air conditioning, LAN wiring, earthquake-resistant buildings, etc. ■ Consulting related to lightning damage prevention, earthquake measures, fire, security, disaster prevention measures, and the construction, operation, and maintenance of information and communication networks *For more details, please refer to the PDF document or feel free to contact us.

This document introduces the BCP risks of offices and factories and the countermeasure products from Showden, based on the technology and know-how that Showden has cultivated in providing lightning damage and earthquake countermeasures for numerous facilities such as infrastructure. The importance of BCP measures and recommended products and systems are covered in a total of 15 pages. Our company offers a wide range of products and services in lightning damage countermeasures, earthquake countermeasures, networks, security, and facilities, enabling the establishment of robust disaster prevention and crime prevention systems. [Contents] ■ BCP as seen through data ■ Importance of BCP measures ■ Introduction of office and factory solutions ■ Introduction of recommended products and systems ■ Case studies *For more details, please refer to the PDF document or feel free to contact us.

This catalog summarizes Showden's "Power Supply Related Products Series," which provides power supply devices for various information and communication infrastructures such as broadcasting equipment, mobile communications, and disaster prevention radio. We introduce products including the "DC Power Unit," which can be used as a power unit for DC power supplies or chargers, as well as "Rack Mount Inverters" and "Automatic Current Regulators." From equipment design that prevents shutdowns to nationwide construction and maintenance, please leave your power supply device needs to us. [Contents (excerpt)] ■ DC Power Supply Devices ■ Rack Mount Inverters ■ Automatic Current Regulators ■ Collector Panels ■ Distribution Boards, etc. *For more details, please refer to the PDF document or feel free to contact us.

This document introduces Showden's technology, which contributes to the safe and secure operation of information and communication networks, along with testing equipment and development facilities. Since its founding, our company has been engaged in technology development to enhance the reliability of information and communication networks, providing numerous products and services. In particular, in the fields of lightning damage prevention and earthquake countermeasures, we have established simulation facilities to aid in the development of technologies and products. [Contents] ■ Introduction of main testing equipment ■ Introduction of each location *For more details, please refer to the PDF document or feel free to contact us.

The "AFD-S Series" is a power supply SPD that features an impulse discharge current Iimp of 12.5kA and incorporates an SPD separator that maximizes its performance. By adopting the safety cutoff technology "SITS," it eliminates the risk of ignition in the event of SPD failure. It contributes to space-saving and reduced wiring work by eliminating the need for external SPD separators. The safety plug-in structure allows for safe replacement of the SPD plug. 【Features】 ■ Complies with JIS C 5381-11 Class I ■ Product lineup covering AC100V, 200V, and 400V ■ Reduces wiring work through screw-up terminal blocks ■ Fault indication and alarm contact output (optional) ■ Complies with standard specifications for public building construction and building equipment design standards *For more details, please refer to the materials. ★ We are currently offering an "Online Seminar on Lightning Damage Countermeasures - On-Demand Version." Please feel free to contact us for more information.

We handle "SPD for DC power supply" equipped with a high-rated isolation SPD (overcurrent isolator). The AFD-T2 for DC allows for the safe removal of the SPD plug without bringing hands close to the charging area, thanks to the adoption of a plug removal lever. Additionally, the power connection terminal of the ACM-DC50A is a two-stage three-pole plug terminal. The terminal allows for safe removal of the SPD due to the connector connection with electric shock protection (connector in). 【Features】 ■ Space-saving and reduced wiring work due to built-in isolator ■ Compatible with DC 12V to DC 400V ■ Safety plug-in (AFD-T2 for DC) allows for safe replacement of SPD plugs ■ Connector in (ACM-DC50A, two-stage three-pole plug terminal) allows for safe replacement of SPD ■ Reduced wiring work with screw-up type terminal block (AFD-T2 for DC) *For more details, please refer to the PDF document or feel free to contact us.

Showden will exhibit at the "JECA FAIR 2025 - 73rd Electrical Installation Industry Exhibition" held at Intex Osaka from May 28 (Wednesday) to May 30 (Friday), 2025. At this exhibition, we plan to showcase advanced lightning protection products and services, including "Power and Communication SPD," "Thunder Blocker Pro," and lightning detection devices. We will also provide detailed information about our initiatives related to SDGs and comprehensive disaster prevention. Additionally, we have scheduled an exhibitor presentation on May 29 (Thursday) from 13:15 to 13:45. (First-come, first-served, free admission) We invite you to visit and see our advanced products and services. 【Main booth display products planned】 ■ Thunder Blocker Pro ■ Lightning protection for wind power generation ■ Lightning protection for offices and factories *For more details, please download the PDF or feel free to contact us.