When a lightning current flows, discharge marks are left behind.
Protection of low-voltage distribution boards (sub-distribution boards) and low-voltage power circuits Lightning arresters (arresters, SPD, LA, surge protectors, etc.), lightning protection products, lightning surge protection products, induced lightning protection, manufactured by Otowa Electric Industry, a specialist in lightning protection.
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*Features* 1. Records lightning surges When the surge protector operates, discharge traces remain on the display surface of the characteristic element. Please replace the characteristic element when the discharge trace reaches 50%. 2. Low limiting voltage Protects against lightning surges even for devices with low insulation strength, with a limiting voltage of less than 500V for 100V circuits and less than 800V for 200V circuits. 3. Easy replacement of characteristic elements The timing for replacing the characteristic element can be easily determined by the discharge traces on the display surface.
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【Purpose】 Protects equipment from lightning surges entering through the power supply (for induced lightning). Power surge protector (Aresta). Single-phase 2-wire, single-phase 3-wire, three-phase 3-wire, 1φ2W, 1φ3W, 3φ3W, AC100V, AC200V, 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.