Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compliance Products Class 1 and 2 (JIS C 5381-11) Compatible
Compact size with high protection capability Impulse current 25kA, 50kA *When used as an SPD for grounding, an SPD external separator is not required. 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 lightning protection products, including SPDs, lightning arresters (such as arresters and surge protectors), and lightning surge 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 can be replaced 5. Excellent responsiveness and no continuous current Response speed: below 3nsec 6. SPD function display included Function display protrudes when degraded 7. Two installation patterns - DIN rail - Installation with M5 screws (tightening torque: 2.0–2.5N·m) 8. Compliant with RoHS regulations on hazardous substances
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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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Easy-to-exchange plugin type
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Otowa Electric Industry Catalog - Direct Lightning SPD LD-C22EFS Series
Otowa Electric Industry General Catalog
Company information
OTOWA is the only manufacturer in Japan specializing in lightning protection, having explored "lightning" since its establishment. We want to create a safe and secure society that does not fear the natural threat of "lightning." We will realize this wish with our advanced lightning protection systems. ◆ A Wide Range of Products Available 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 facilities and a diverse range of testing equipment, 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 indispensable for lightning protection.