Compact and lightweight, making lightning intrusion "visible."
Records and displays the surge current levels that have entered grounding lines, along with the detection time. Compact, lightweight, and easy to install. Records and displays surge current levels (100A~, 1000A~) and their detection times. Compact, lightweight, and easy to install. Manufactured by Otowa Electric Industry, a specialized manufacturer of SPD, lightning arresters (such as arresters and surge protectors), lightning protection products, lightning surge countermeasures, and induced lightning countermeasures.
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basic information
*Features* 1. Records and displays the surge current level that has entered the grounding line and the detection time, which helps in verifying the effectiveness of the SPD (surge protective device) and maintenance. 2. Compact and lightweight. 3. Easy to install. Pass the grounding line through the wire insertion part (CT part for OLM-2C) and secure it with M5 or M6 screws or cable ties. 4. Outputs a contact when surge current is detected (only for OLM-2S and OLM-2C, open collector output). 5. Easy to operate. 6. Complies with RoHS regulations on hazardous substances.
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Applications/Examples of results
【Purpose】 Surge detector for detecting lightning surges and others. Records the scale of the surge and the detection time. Equipped with a surge counter function.
catalog（3）
Download All Catalogs
Otowa Electric Industry Catalog Thunder Memory OLM-2, OLM-2S
Otowa Electric Industry General Catalog
Otowa Electric Industry Catalog Thunder Radar TA-3SG, TA-3SW
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.