Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compliance Products Class 1 & 2 (JIS C 5381-11) Compatible
Compact size with high protection capability Impulse current 25kA, 50kA *No external isolator is required when used as an SPD for grounding. Protects equipment from lightning surges entering through power supply and grounding (earth) with high protection capability. Direct lightning strike compatible. Protects equipment from lightning surges entering through power supply and grounding (earth). Complies with JIS standards. Handles the diversion components of direct lightning strikes and is installed in distribution boards and sub-distribution boards. Manufactured by Otowa Electric Industry, a specialist in SPD, lightning rods (such as arresters and surge protectors), lightning countermeasures, lightning surge countermeasures, and induced lightning countermeasures.
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basic information
*Features* 1. High protection capability Protects facilities and equipment from damage caused by impulse current Iimp 25kA and direct lightning strikes. 2. Voltage protection level is below 1300V (LD-C22EFS) 3. Usable for interconnection between grounding electrodes 4. Plug-in type Only the SPD main unit is replaceable 5. Excellent responsiveness and no continuous current Response speed: less than 3nsec 6. SPD function display included Function display protrudes when degraded 7. Two installation patterns - DIN rail - Installation with M5 screws (tightening torque: 2.0 to 2.5 N·m) 8. Compliant with RoHS regulations
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【Purpose】 Protects equipment from lightning surges entering from the power supply (direct lightning strike compatible). Class 1 compatible power supply SPD (surge protective device, arrester). Single-phase 2-wire, single-phase 3-wire, three-phase 3-wire, three-phase 4-wire, 1φ2W, 1φ3W, 3φ3W, 3φ4W, AC100V, AC200V, AC400V, for lighting, for power.
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Company information
OTOWA is the only manufacturer in Japan specializing in lightning protection, having explored "lightning" since its founding. We want to create a safe and secure society where people are not afraid of the natural threat of "lightning." We will realize this wish with our advanced lightning protection systems. ◆ A wide range of product lineup We offer a variety of products, including surge protectors for power distribution, as well as those for offices, factories, railway vehicles, and general households. We also accommodate custom orders, so please feel free to consult with us. ◆ Consulting for lightning protection Lightning protection varies depending on various conditions such as location. OTOWA will propose the most suitable lightning protection measures for those conditions. ◆ World-class "lightning" testing facilities Using top-class testing equipment and a variety of testing facilities, we conduct product evaluation tests and development in-house. Our achievements are highly regarded, and we also accept contract testing (Lightning Technology Center). ◆ Unique quality of zinc oxide devices We produce zinc oxide (ZnO) devices under strict management. These devices are the heart of surge protective devices (SPDs) and are essential for lightning protection.