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 to 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 Building Equipment Design Standards Class 2 (JIS C 5381-11) compliant Protects equipment from lightning surges entering through power and grounding (earth). Compatible with induced lightning. Protects equipment from lightning surges entering through power and grounding (earth). JIS compliant. A standard SPD that can be installed in distribution boards and sub-distribution boards. Manufactured by Otowa Electric Industry, a specialist in lightning protection products, including SPDs, lightning arresters (such as arresters and surge protectors), and products for lightning surge countermeasures and induced lightning countermeasures.
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basic information
*Features* 1. Easy installation in the panel ● Complies with JIS standard dimensions for circuit breakers (3-pole) ● Copper bars available for branch MCCBs 2. Safety features even during degradation ● Built-in automatic disconnection device ● SPD function indicator included ● Supports degraded contact output (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 using mounting brackets (sold separately, model: 7146-0056) 5. Protects line-to-line and line-to-ground with one unit 6. Complies with RoHS regulations on hazardous substances
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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 【Application】 Protects equipment from lightning surges entering from the power supply (lightning induction compatible). SPD (Surge Protective Device) for Class 2 compatible power supplies (lightning arrester, arrestor). 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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Visual confirmation of function with the SPD function indicator lamp.
catalog（2）
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Otowa Electric Industry Catalog - Agreement Dimensions SPD LT-2T, LT-24T, LT-44T Series
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.