The response speed is less than 3 nanoseconds due to gaplessness.
Ministry of Land, Infrastructure, Transport and Tourism Standard Specifications for Public Building Construction Compliance Product Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compliance Product Compliant with JIS C 5381-11 *When used as a SPD for grounding, an SPD external separator is not required. Protects equipment from lightning surges entering through power and grounding (earth). Indirect lightning protection. Protects equipment from lightning surges entering through power and grounding (earth). JIS compliant. A standard SPD that can be installed in distribution boards and sub-distribution boards. SPD, lightning arresters (such as arresters and surge protectors), lightning protection products, lightning surge protection products, indirect lightning protection, manufactured by Otowa Electric Industry, a specialist in lightning protection.
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basic information
*Features* 1. Excellent responsiveness and no continuous flow - Response speed: less than 3nsec - Maximum discharge current (Imax) is 20kA, 40kA (8/20μs), protecting the power supply from lightning surges 2. Effective against switching surges - Supports square wave impulse current of 150A (2ms) for 20 times 3. Safety features even during degradation - Built-in disconnection device - Visual inspection possible through the transparent window on top 4. Two installation patterns - DIN rail - Installation with M5 screws (tightening torque: 2.0 to 2.5N·m) 5. Plug-in type - Only the SPD main unit can be replaced 6. Usable for connecting between grounding electrodes 7. Compliant with RoHS restricted substances
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Applications/Examples of results
【Purpose】 Protects equipment from lightning surges entering from the power supply (lightning-induced). SPD (Surge Protective Device, Lightning Arrester) for Class 2 compliant power supplies. 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.
