For 2-wire system, for 3-wire system, for RS485 line, for RS422 line.
Ministry of Land, Infrastructure, Transport and Tourism Standard Specifications for Public Building Construction Compliant Products (SLT-GV5JW, SLT-GV12JW, SLT-GV24JW) Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compliant Products (SLT-GV24JW) Corresponding to JIS C 5381-21 SPD, lightning arresters (such as arresters, surge protectors), lightning protection products, lightning surge protection products, induced lightning protection, manufactured by Otowa Electric Industry, a specialist in lightning protection.
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basic information
*Features* 1. Compatible with 2-wire and 3-wire signal lines 2. DIN rail compatible 3. Plug-in type (easy to inspect and replace) 4. SPD function indicator included The LED lamp turns off to notify the replacement time, making inspection easy. (When using separate products, LED power supply type: SL-205A) 5. Compliant with RoHS restricted substances
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【Purpose】 Protects equipment from lightning surges entering through communication lines (3-wire signal lines). SLT-GV5JW: For 3-wire temperature resistance sensors (PT100), potentiometers, thermocouples, general use (2-wire, 3-wire), and RS485 lines. SLT-GV12JW: For 3-wire temperature resistance sensors (PT100), slow pulse applications, general use (2-wire, 3-wire), RS485 lines, and RS422 lines*. SLT-GV24JW: For DC4-20mA, general use (2-wire, 3-wire), RS485 lines, and RS422 lines*. *When using with RS422 lines, please prepare two units of this SPD. Also, ensure that the maximum continuous operating voltage is not exceeded during use.
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Otowa Electric Industry Catalog: SPD for 3-Wire Signal Lines SLT-GV5JW, SLT-GV12JW, SLT-GV24JW

Otowa Electric Industry Catalog - SPD for Signal Lines and Telephone Lines, SL-GVJ Series, SL-TJ Series

Otowa Electric Industry Catalog - SPD for Telephone Terminals and Communication Terminals (SPU Series) SPU-T170J, SPU-GV24J

Otowa Electric Industry Catalog Broadcast Line SPD SL-GZ110J

Otowa Electric Industry Catalog - SPD for Signal Lines and Telephone Lines, SG-GVJ, SGR-GVJ, SG-TJ Series (SG-GVJ Series)

Otowa Electric Industry Catalog - SPD for High Current Signal Lines - SL-KH24J

Otowa Electric Industry Catalog RS485 Line SPD SR-GV5J, SR-GV12J, SR-GV24J, SR-GV38JN

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.