Lightning Protection Breaker SPD LD-B22E3, LD-B22E3S
LD-B22E3 without deterioration contact output terminal, LD-B22E3S with deterioration contact output terminal *Replacement SPD part LD-B22E3-E available.
Class 1 and 2 compliant products for the Ministry of Land, Infrastructure, Transport and Tourism's Building Equipment Design Standards (JIS C 5381-11) - Industry's first integrated SPD separator and Class 1 compliant SPD.
Integration of SPD external separator (MCCB) and SPD Designed to withstand direct lightning strikes. Protects equipment from lightning surges entering through power supply and grounding (earth). Compliant with JIS standards. Processes the diversion components of direct lightning and is installed in distribution boards and sub-distribution boards. Manufactured by Otowa Electric Industry, a specialist in lightning protection products, including SPD, lightning arresters (such as arresters and surge protectors), lightning countermeasures, and lightning surge countermeasures.
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basic information
*Features* 1. Integration of SPD external isolator (MCCB) and SPD, resulting in the shortest internal wiring. By integrating the SPD external isolator, the external wiring between the SPD and the isolator becomes zero, significantly reducing wiring labor. By keeping the wiring as short as possible, optimal lightning protection can be achieved. 2. Inspection function with disconnector that allows inspection while the main breaker is energized. Wiring breaker (MCCB): During the replacement or inspection of the SPD section, the circuit can be opened by operating the breaker, allowing work to be done without voltage. 3. High protection capability. Voltage protection level is below 1300V, impulse current Iimp 25kA, protecting facilities and equipment from damage caused by direct lightning strikes. 4. SPD section can be replaced independently. 5. Excellent responsiveness and no continuous current. Response speed: less than 3nsec. 6. Safety features even during degradation. - Two-stage protection function (automatic disconnection device inside the SPD operates, and the SPD external isolator trips). - SPD function display included. - Degradation contact output compatible (only for LD-B22E3S). 7. 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 3-wire, three-phase 3-wire, 1φ3W, 3φ3W, AC100V, AC200V (single-phase 2-wire, 1φ2W also acceptable), for lighting use, for power use.
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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.