Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Nov 12, 2025～Dec 09, 2025
This ranking is based on the number of page views on our site.
1～15 item / All 71 items
Power supply SPD conforming to JIS standard dimensions for circuit breakers (3-pole and 2-pole).
This is a power supply SPD (surge protective device) that protects AC100V & 200V/400V power circuits from lightning surges, conforming to the dimensions of JIS standard circuit breakers for wiring (for 3-pole and 2-pole use).
SPD for JIS Class 2 power supply evolved with a new mechanism.
The "SmartSPD for Power / SPD for Power" lineup focuses on surge protective devices (SPDs) for power circuits that comply with JIS standards for direct lightning surges of 10/350μs and induced lightning surges of 8/20μs. The products are available in various types according to circuit configurations, and there are also component types. SmartSPD features high functionality that displays the recommended replacement timing based on lightning surge measurement values. 【Features】 ■ Degradation display ■ Improved separation performance ■ Compliant with JIS Class 2 ■ Plug/jack contact ■ DIN rail (35mm width) mounting structure *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
Newly implemented smart feature. Multi-core unit type SPD that protects equipment from lightning.
"HOWL2" is a multi-core unit type SPD equipped with a new function to protect equipment from lightning. It features an innovative status display that clearly shows the SPD's status using LEDs. It also includes a recommended replacement indication function before failure, which triggers a signal from the alarm terminal when replacement is recommended. The visualization of lightning surges has been realized, displaying the number of operations of the unit on a 7-segment display during lightning surge intrusion. 【Features】 ■ Innovative status representation ■ Realization of lightning surge visualization ■ Satisfaction of multi-core insertion ■ Additional features considering insulation testing *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
Space-saving installation possible! SPD that protects equipment from lightning surges invading communication and signal circuits.
The "ZP type" is a slim communication SPD (surge protective device) that protects equipment from lightning surges entering communication and signal circuits. It complies with JIS C 5381-21 Category C2 and D1. It features a plug-in design that excels in maintainability, with a structure that does not cause circuit interruption during plug removal. It also includes a degradation display function (using the dedicated tester "ZPT1 type" sold separately). 【Features】 ■ Slim design allows for space-saving installation ■ DIN rail (35mm) mounting structure ■ Complies with the Ministry of Land, Infrastructure, Transport and Tourism's standard specifications for public building construction ■ Complies with the Ministry of Land, Infrastructure, Transport and Tourism's building equipment design standards ■ Compliant with RoHS directives For more details, please refer to the catalog or feel free to contact us.
Space-saving type suitable for built-in devices! SPD that protects the AC power circuit from lightning surges.
The "PMZ type" is a power supply SPD (surge protective device) suitable for incorporation into devices such as PCS (power conditioners) used in solar power generation, as well as within lighting panels. In the event of degradation failure, it prevents abnormal heating through an internal disconnection mechanism. It is equipped with a highly visible LED for degradation failure indication. 【Features】 - Space-saving design suitable for incorporation into devices - Can simultaneously protect between lines and to ground with a single unit - Complies with JIS C 5381-1 Class II - Conforms to the Ministry of Land, Infrastructure, Transport and Tourism's Building Equipment Design Standards and the Ministry of Land, Infrastructure, Transport and Tourism's Standard Specifications for Public Building Construction - Compliant with RoHS Directive For more details, please refer to the catalog or feel free to contact us.
Protect communication devices from abnormal voltage! Communication Smart SPD with recommended replacement indication function.
The "SMB-KRAPS1 type" is a communication SPD used to protect equipment from abnormal voltage and current induced by communication lines when mounted on the Tyco Electronics' Krone LSA-PLUS separation module. Additionally, it monitors degradation caused by repeated lightning surges and has a function to display a recommended replacement level before the SPD's protective performance is lost, as well as a function to notify when the SPD has degraded. 【Features】 ■ Communication SPD for Krone LSA-PLUS terminals ■ Compliant with JIS C 5381-21 / IEC 61643-21 Category C2, D1 ■ Displays recommended replacement level and surge operation count (LED) ■ Equipped with degradation indication function ■ Compliant with RoHS directive For more details, please refer to the catalog or feel free to contact us.
Signal line type (SL-GVJ series), telephone line type (SL-TJ series), slim type
Ministry of Land, Infrastructure, Transport and Tourism Public Building Construction Standard Specifications Compatible Products (SL-GV12J, SL-GV24J, SL-GV48J, SL-T170J) Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Compatible Products (SL-T170J) Compliant with JIS C 5381-21 Protects against lightning surges entering through signal lines. Signal line use (SL-GVJ series), telephone line use (SL-TJ series) SPD, lightning arresters (such as arresters, surge protectors), lightning countermeasure products, lightning surge countermeasure products, induced lightning countermeasures, manufactured by Otowa Electric Industry, a specialist in lightning protection.
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.
Ministry of Land, Infrastructure, Transport and Tourism Standard Specifications for Public Building Construction Conforming Products Ministry of Land, Infrastructure, Transport and Tourism Building Equipment Design Standards Conforming Products JIS C 5381-21 Compliant
For terrestrial digital television broadcasting, BS broadcasting, and CS broadcasting Protects equipment from lightning surges entering through coaxial cables. JIS compliant. Manufactured by Otowa Electric Industry, a specialist in lightning protection products, including SPD, lightning arresters (such as arresters and surge protectors), lightning countermeasure products, and induced lightning countermeasures.
For 2-wire use, for 3-wire use, for RS485 line use, for RS422 line use.
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, products from Otowa Electric Industry, a specialized manufacturer of lightning protection.
Corresponding to JIS C 5381-21
For control power circuits (AC/DC compatible) Protection from lightning surges entering from control power circuits (AC/DC compatible). Slim type. SPD, lightning arresters (such as arresters and surge protectors), lightning protection products, lightning surge countermeasures, induced lightning countermeasures, manufactured by Otowa Electric Industry, a specialist in lightning protection.
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 JIS C 5381-21 Compliant
For telephone lines (SPU-T170J) For signal lines (SPU-GV24J) Compatible with LSA-Plus Krone terminal installation Protects equipment from lightning surges entering through telephone and signal lines. JIS compliant. Manufactured by Otowa Electric Industry, a specialist in lightning protection products, including SPD, lightning arresters (such as arresters and surge protectors), lightning countermeasures, and induced lightning countermeasures.
