Power supply SPD LT-121, LT-122
LT-121 Maximum continuous operating voltage (Uc) 110V AC, LT-122 Maximum continuous operating voltage (Uc) 230V AC
Protects the line-to-line and line-to-ground connections of a single-phase two-wire circuit with one unit.
Ministry of Land, Infrastructure, Transport and Tourism Standard Specifications for Public Building Construction Compliant Products Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compliant Products Class 2 (JIS C 5381-11) Compliant Protects equipment from lightning surges entering through power supply and grounding (earth). Induced lightning compatible. Protects equipment from lightning surges entering through power supply 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, surge protectors, etc.), lightning protection products, lightning surge protection products, induced 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 Maximum discharge current (Imax) is 10kA (8/20μs), protecting the power supply from lightning surges and switching surges 2. Compact design, protects line-to-line and line-to-ground in a single-phase two-wire circuit 3. Safety features even during degradation Built-in disconnection device during degradation SPD function indicator included *Normal operation: lit, during degradation: off (however, when SPD is powered on)* 4. Mounting with M4 screws 5. 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, arrester) for Class 2 compliant power supply. Single-phase two-wire, 1φ2W, AC100V, AC200V, for lighting use.
Detailed information
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Function confirmation by visual inspection using the SPD function indicator lamp.
catalog（2）
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Otowa Electric Industry Catalog Power Supply SPD LT-121, LT-122, LT-121, LT-122
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.