The response speed is less than 3 nanoseconds due to gaplessness.
Ministry of Land, Infrastructure, Transport and Tourism Public Building Construction Standard Specifications Compatible Product Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compatible Product Compliant with JIS C 5381-11 *When used as an SPD for grounding, an SPD external separator is not required. Protects equipment from lightning surges entering through power and grounding (earth). Inductive lightning compatible. Protects equipment from lightning surges entering through power and grounding (earth). Compliant with JIS. 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 countermeasure products, inductive lightning countermeasures, 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), protects 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 upper transparent window 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 connection 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 (for induced lightning). 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.
Detailed information
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Installation example
catalog（4）
Download All Catalogs
Otowa Electric Industry Catalog - Power Supply SPD LGL Series
Otowa Electric Industry General Catalog
Otowa Electric Industry Catalog Device SPD LT-C Series
Otowa Electric Industry Catalog - SPD for Built-in Equipment MT-ZGB254C
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.