Contract dimensions SPD LT-2T, LT-24T, LT-44 series
LT-2T, LT-2TS,LT-2T2H, LT-2T2HS,LT-24T2H, LT-24T2HS,LT-44T2H,
The same external dimensions as JIS standard circuit breakers, protecting between phases and between phase and ground with a single unit.
Protects between lines and to ground with one unit. Registered product with the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Compliant with MLIT's Standard Specifications for Public Building Construction Compliant with MLIT's Design Standards for Building Equipment 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 and surge protectors), 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. Easy installation in the panel ● Complies with JIS standard dimensions for wiring circuit breakers (for 3 poles) ● Copper bars available for branch MCCB 2. Safety features even during deterioration ● Built-in automatic disconnection device ● SPD function indicator included ● Deterioration contact output compatible (only for S type) 3. Excellent responsiveness and no continuous current 4. Four installation patterns ● DIN rail ● Installation with M4 screws (tightening torque: 2.0–2.5 N·m) ● Connecting mounting plate ● Screw mounting with mounting brackets (sold separately, model: 7146-0056) 5. Protects line-to-line and line-to-ground with one unit 6. Compliant with RoHS regulations
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Applications/Examples of results
Mass: LT-2T, LT-2TS… approximately 260g LT-2T2H, LT-2T2HS… approximately 340g LT-24T2H, LT-24T2HS… approximately 340g LT-44T2H, LT-44T2HS… approximately 370g 【Purpose】 Protects equipment from lightning surges entering from the power supply (for induced lightning). SPD (Surge Protective Device) for Class 2 compliant power supplies (lightning arresters, arresters). 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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Function confirmation by visual inspection using the SPD function indicator lamp.
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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.