Lightning Surge Protector SPD LD-B22E3, LD-B22E3S
LD-B22E3 without degraded contact output terminal, LD-B22E3S with degraded contact output terminal *Replacement SPD part LD-B22E3-E available.
Class 1 and 2 compliant products according to 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 that enter through power sources 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 SPD, lightning arresters (such as arresters and surge protectors), lightning countermeasures, and induced lightning 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 is reduced to 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 circuit 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. The voltage protection level is below 1300V, with an impulse current Iimp of 25kA, protecting facilities and equipment from damage caused by direct lightning strikes. 4. SPD section can be replaced independently. 5. Excellent responsiveness with 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 support (only for LD-B22E3S). 7. Compliant with RoHS regulated substances.
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Applications/Examples of results
【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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Lightning Protection Breaker SPD LD-B22E3, LD-B22E3S
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.
