Otowa Electric Industry Co., Ltd.'s Company Profile and Products

■Features 1. Great protection ability Impulse current Iimp25kA, 50kA protects facilities and equipment from damage caused by di...

• Surge Countermeasures

• Lightning Arresters

■Features 1.SPD external separator (MCCB) and SPD are integrated, minimizing wiring inside the panel Integration of the SPD ext...

• Surge Countermeasures

• Lightning Arresters

■Features 1.SPD external separator (MCCB) and SPD are integrated, minimizing wiring inside the panel Integration of the SPD ext...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Impulse current 25kA, 50kA (10/350μs) 2. Compatible with contact output (b contact) 3.DIN rail installation 4. Com...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Impulse current 100kA (10/350μs) 2. Compatible with contact output (b contact) 3.Used for connection between groun...

• Surge Countermeasures

• Lightning Arresters

■Features 1.SPD external separator (fuse) and SPD are stored in the panel 2. Comes with a safety function even when it deterio...

• Surge Countermeasures

• Lightning Arresters

■Features 1.SPD external separator (fuse) and SPD are stored in the panel 2. Comes with a safety function even when it deterio...

• Surge Countermeasures

• Lightning Arresters

■Features 1.SPD external separator (fuse) and SPD are stored in the panel 2. Comes with a safety function even when it deterio...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Integrate SPD external separator (fuse) and SPD Pre-wiring unit reduces man-hours between SPD external separator an...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Design SPD panel according to customer's request We offer panels that combine a wide variety of products such as SP...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Design explosion-proof SPD panel according to customer's request We offer panels that combine a wide variety of pro...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Explosion-proof SPD panel incorporating JIS-compliant class I SPD (Iimp 25kA) 2. Explosion-proof structure is d2G...

• Surge Countermeasures

• Lightning Arresters

■Features 1.With the built-in JSPD separator, the wiring inside the panel is the shortest possible. Built-in SPD separator elim...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Built-in SPD separator eliminates the need for external separator 2.Easy to install inside the panel ・Compliant ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Built-in surge count/replacement recommendation display function Built-in surge count function allows visualization...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Easy to install inside the panel ・Compliant with JIS convention type molded circuit breaker dimensions (3 poles) ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Easy to install inside the panel JIS convention type hardwired circuit breaker 2 pole width 50mm 2. Comes with a s...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Improved efficiency and compactness An integrated structure that combines each SPD reduces wiring man-hours and sig...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Excellent responsiveness and no follow current Maximum discharge current (Imax) is 10kA (8/20μs), protects power s...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Excellent responsiveness and no follow current ・Response speed: 3nsec or less ・Maximum discharge current (Imax) ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Improved efficiency and compactness An integrated structure that combines each SPD reduces wiring man-hours and sig...

• Surge Countermeasures

• Lightning Arresters

■Features 1. UL 1449 Listing certified/NFPA79 compliant Complies with NFPA79 surge protection requirements for industrial machi...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Built-in disconnection device/with SPD function display ・Built-in disconnection device when ZnO element deteriorat...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Compact and space saving possible Integrated line-to-ground and line-to-ground type that protects against induced l...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Design a grounding terminal board according to customer requirements A JIS-compliant grounding SPD is built into th...

• Terminals / Interfaces

• Terminal Boards

■Features 1.Used in combination with various power supply SPDs to cut off short-circuit current. 2. Compatible with RoHS regul...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Ideal for protecting signal lines and telephone lines with a large number of lines. 2.DIN rail compatible 3.Plug...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Supports RS485 line 2.DIN rail compatible 3.Plug-in type (easy inspection and replacement) 4.With SPD function d...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Rated current 1,000mA 2.DIN rail compatible 3.Plug-in type (easy inspection and replacement) 4.With SPD function...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Supports speaker circuit (for high impedance) 2.DIN rail compatible 3.Plug-in type (easy inspection and replaceme...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Compatible with 2-wire and 3-wire signal lines 2.DIN rail compatible 3.Plug-in type (easy inspection and replace...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Compatible with control power supply circuit (AC/DC common) 2.DIN rail compatible 3.Plug-in type (easy inspectio...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Supports LSA-Plus Krone, NUCS, UCS terminal installation 2.With SPD function display 3.Plug-in type (easy inspectio...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Great protection ability 2. Compatible with DIN rail mounting and screw mounting. 3.Plug-in type (easy inspection ...

• Surge Countermeasures

• Lightning Arresters

■Features 1, Compatible with contact signals 2. Great protection ability 3.Supports DIN rail mounting and screw mounting. 4.Plu...

• Surge Countermeasures

• Lightning Arresters

■Features 1. SPDs for signal lines, telephone lines, and control power circuits can be installed together (up to 10 units) 2.C...

• Surge Countermeasures

• Lightning Arresters

■Features 1, Small size, lightweight and easy to install 2. Compatible with modular outlets 3. Excellent responsiveness and n...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Dedicated power supply for SPD function display of signal line SPD and lightning arrester By supplying DC3 to 5V t...

■Features 1. Protects network devices such as ITV cameras and computers connected to LAN cables. 2. Compatible with degraded c...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Protects network devices such as ITV cameras and computers connected to LAN cables. 2. Compatible with Gigabit Et...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects network equipment and computers connected to LAN cables without the need for grounding Built-in high-volta...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects various wireless devices from lightning surges 2.Excellent high frequency characteristics 3.High quality...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects various wireless devices from lightning surges 2. Ideal for protecting devices with long wiring lengths U...

• Surge Countermeasures

• Lightning Arresters

■Features 1, Compatible with degraded contact output Equipped with a deteriorated contact output function, it is possible to re...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects devices connected to the GPS antenna port from lightning surges 2.High quality and high performance due t...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Protect ITV/surveillance cameras from lightning surges 2. Compatible with various signal transmission standards u...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects TV and surveillance cameras from lightning surges 2. Two mounting methods: DIN rail mounting and screw mou...

• Surge Countermeasures

• Lightning Arresters

■Features 1, Compatible with degraded contact output Equipped with a deteriorated contact output function, it is possible to re...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects equipment from lightning surges entering from the TV antenna Compatible with 2.4K/8K broadcasting, terrest...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Protects equipment from lightning surges entering from the TV antenna 2. Compatible with terrestrial digital televi...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Assembly kit for attaching SPD for coaxial cable to DIN rail Contains all the parts necessary to attach the SPD fo...

• Surge Countermeasures

• Lightning Arresters

■Features 1. Supply power to SPD with PD function display function 2. Contact output in conjunction with SPD function display ...

• Controllers

• Power Control Units

■Features 1. Attenuates intrusion surge to approximately 1/10,000 (10,000V→1V) 2.Reliably attenuates not only surges coming fro...

• Transformers

• High Voltage Isolation Transformers

■Features 1. Attenuates intrusion surge to approximately 1/10,000 (10,000V→1V) 2.Reliably attenuates not only surges coming fro...

• Transformers

• High Voltage Isolation Transformers

■Features 1. Attenuates the intrusion surge from the primary (input power supply) side to approximately 1/100 (10,000V→100V) 2....

• Transformers

• High Voltage Isolation Transformers

■Features 1.Attenuates the intrusion surge from the primary (input power supply) side to approximately 1/1,000 (10,000V→10V) 2...

• Transformers

• High Voltage Isolation Transformers

■Features 1.Small and lightweight type 2. Attenuates the intrusion surge from the primary (input power supply) side to approxi...

• Transformers

• High Voltage Isolation Transformers

• Transformers

• High Voltage Isolation Transformers

■Features 1.Excellent stain resistance properties 2. Small and lightweight due to polymer jacket, easy to install and handle ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.No follow current due to non-linear resistance of ZnO element Suitable for protection against severe lightning surg...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties 2.No follow current due to non-linear resistance of ZnO element Suitable for...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties -Double-skirted insulator structure prevents contamination from progressing a...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties -Double-skirted insulator structure prevents contamination from progressing a...

• Surge Countermeasures

• Lightning Arresters

■Features 1.For Gekirai area Due to its high discharge capacity, it is suitable for use in areas with frequent lightning or mou...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties 2.Excellent response characteristics Since there is no series gap, there is ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties The internal structure has the same performance as lightning arresters delive...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Uses high performance zinc oxide element Performance above JIS C 4608 2.With three-pole interlocking disconnection...

• Surge Countermeasures

• Lightning Arresters

■Features 1.No follow current due to non-linear resistance of ZnO element Suitable for severe lightning surge protection. 2.Ex...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent stain resistance properties 2. Small and lightweight due to polymer jacket, convenient for installation ...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Surge arrester specifically for DC train lines The DC nominal voltage is 1,500V, and the discharge start voltage is...

• Surge Countermeasures

• Lightning Arresters

■Features 1.Excellent response characteristics Since there is no series gap, there is no delay in discharge, so the response ch...

• Surge Countermeasures

• Lightning Arresters

■Features Suitable for 1.6.6kV system phase advance capacitor circuits where there is overcurrent/overtemperature relay operati...

• Connectors

• Cable Connectors

■Features 1.Easy to install and remove 2. Inspection work is safe because it can be reliably separated from the track. 3.Preven...

• Connectors

• Cable Connectors

■Features 1. Prevents ground faults and short circuit accidents specific to bird damage This prevents the wire used for bird ne...

• Connectors

• Cable Connectors

■Features 1.Insulation penetration type, just attach it to the insulated wire The conductive blade penetrates the wire sheathin...

• Connectors

• Cable Connectors

■Features 1. Uninterrupted disconnection When the lightning arrester deteriorates, it automatically disconnects the grounding w...

■Features 1.Large display The display is large, making it easy to check visually. 2. Detect deterioration and malfunctions eve...

■Features 1.Selectable operation mode, 3 patterns to choose from 2. Automatic reload time can be set The automatic reload time...

■Features 1. Determine whether it is lightning surge or load abnormality The "reset breaker" is an automatic power breaker rest...

• Safety Devices

• Breakers

■Features 1. Equipped with a long-life lead battery (expected lifespan of 10 years) and maintenance-free, providing overwhelmin...

• Power Supplies

• UPS

■Features 1. Equipped with a long-life lead battery (expected lifespan of 10 years) and maintenance-free, providing overwhelmin...

• Power Supplies

• UPS

■Features 1, Realization of miniaturization Approximately 1/4 volume and 1/7 mass compared to UPS. Significant reduction in siz...

■Features 1, Realization of miniaturization Approximately 70% the volume and 40% the mass of a UPS. It can be made smaller and ...

■Features 1, Realization of miniaturization By adopting a transformerless system and rational design, it can be significantly r...

■Features 1.In the event of a lightning strike, the power is automatically turned off to protect equipment within the facility....

■Features 1. Two types of power switching types can be selected. ・Automatic type ・Manual type 2.Design a power switchboard a...

■Features 1. Large capacity for indoor use, ensuring power supply in the event of a power outage. There are three types availab...

• Power Supplies

• Portable Power Supply Machines

■Features 1. Electricity generated during daily driving can be stored in a storage battery and used anywhere. The electricity g...

• Power Supplies

• Storage Batteries

■Features 1. Can be used by converting the electricity generated by the car battery to AC100V It has an output comparable to th...

■Features 1.Achieved a 40% reduction in installation area and a 30% reduction in volume compared to conventional products. 2.A...

• Filters

• Noise Filters

■Features 1, Low leakage current type for domestic power supply/European power supply 2. Smallest mounting area in its class I...

• Filters

• Noise Filters

■Features 1.Same dimensions as safety breaker 2. Can be installed on the distribution board using the empty space for one safet...

• Surge Countermeasures

• Arresters

■Features 1. Protect devices such as IP phones from lightning surges 2.Excellent protection performance due to bypass circuit ...

• Surge Countermeasures

• Surge Protectors

■Features 1.Protect devices such as IP phones from lightning surges 2.Excellent protection performance due to bypass circuit I...

• Surge Countermeasures

• Surge Protectors

■Features 1, Compatible with JIS C 1400-24 Lightning protection (JIS C 1400-24) Compatible with Class I of the lightning curren...

■Features 1, Compatible with JIS C 1400-24 Lightning protection (JIS C 1400-24) Compatible with class II-2 (summer lightning ar...

■Features 1.Displays electrostatic field strength with LED bar graph 2. Count the number of lightning discharges 3.With warni...

• Aircraft

• Weather Radars

■Features 1.Report information on past lightning strikes Based on the lightning data observed by the Japan Meteorological Agenc...

■Features 1. Record and display the level of surge current that has entered the grounding wire, etc. and the time it was detect...

■Features 1. Record and display the level of surge current that has entered the grounding wire, etc. and the time it was detect...

■Features 1. No battery required for power supply Can be used in places where AC power is not available. 2.Supports direct lig...

■Features 1.Small, lightweight and easy to install Can be installed with DIN rail and M4 screws. 2. Count the number of surge ...

■Features 1. Operation start voltage up to DC40~100kV can be measured 2.Easy to operate 3. Equipped with overvoltage and overcu...

■Features 1.SPD (surge arrester) deterioration can be diagnosed Operation start voltage (V1mA) and discharge start voltage up t...

■Features Deterioration of 1.6.6kV power distribution surge arrester elements can be diagnosed. 2. Easy to operate and automat...

■Features 1.Measures transient ground resistance values ​​(effective surge impedance) that cannot be measured with a ground res...

• Analyzers

• Impedance Analyzers

■Features 1. Design and manufacture of impulse (voltage/current) generators In addition to the standard impulse voltage (1.2/50...

• Generators

• Pulse Generators

■Features Compatible with special specifications of 1.100kV or more We provide detailed support for equipment dielectric streng...

• Meters & Instruments

• Insulation Resistance Testers

■Features 1.Able to provide detailed support for equipment dielectric strength tests Adopting a porcelain (or resin) insulator ...

• Test Equipment

• Withstanding Voltage Testers

■Features It is useful in sites where grounding is difficult to obtain or renewable energy sites.

■Features Can be constructed in a variety of shapes in limited space such as small substations

■Features 1. Has an excellent grounding resistance reduction effect, resulting in savings in grounding construction costs. 2. V...

■Features 1.Excellent grounding resistance reduction effect 2. No water required during construction; hardens with moisture in ...

■Features 1.The background color is orange and the text color is green. 2.The folding is doubled, and the standard length is 20...

■Features 1. The reduction effect is improved by using multi-mesh. 2. No water required during construction; hardens with moist...

■Features 1.The reduction effect is improved by using power mesh 2. No water is required during construction; it hardens with m...

■Features 1.The reduction effect is improved by using power mesh 2. No water is required during construction; it hardens with m...

■Features 1.100Ω for class D grounding, easy to install in narrow spaces such as houses, and reduces grounding resistance. The ...