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Active Lightning Rods

Active lightning protection systems, also known as ESE systems (Early Streamer Emission air terminals), are used in more than 80 countries worldwide. The Prevectron 3 system operates completely independently and does not require any external power supply.

The system is charged by lower electrodes using the surrounding electric field (during an approaching storm, this can reach thousands of volts per meter). This means that the PREVECTRON® 3 system operates fully independently without any external power source.

During dynamic analysis of the surrounding electric field, the PREVECTRON® 3 system monitors descending leader discharges. The patented OptiMax® technology is then activated to neutralize spatial discharges occurring naturally near the air terminal, ensuring optimal operating conditions.

Just before the lightning strike, the electric field charge increases rapidly and a descending leader discharge propagates from the cloud to the ground. This triggers an ionization process between the upper electrodes and the air terminal tip. PREVECTRON® 3 reacts precisely at the critical moment.

The controlled ionization process and OptiMax® technology ensure the initiation of an upward leader before the lightning penetrates the protected area. PREVECTRON® 3 safely captures the lightning strike and provides maximum protection for the structure.

Prevectron 3 S60

Prevectron 3 S60

PREVECTRON® 3 S60 Early Streamer lightning air terminal.

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Prevectron 3 S50

Prevectron 3 S50

Latest OptiMax® technology with fast connection system.

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Prevectron 3 S40

Prevectron 3 S40

Modular design combined with the latest OptiMax® technology.

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Prevectron 3 TS25

Prevectron 3 TS25

TS25 offers a modular design providing a wide range of solutions.

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Prevectron 3 TS10

Prevectron 3 TS10

TS10 combines the latest OptiMax® technologies.

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Prevectron 3 S60 Connect

Prevectron 3 S60 Connect

ESE air terminal with maximum protection radius, ΔT 60 µs efficiency, remote monitoring via indelecconnect.com and certified performance.

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Prevectron 3 S50 Connect

Prevectron 3 S50 Connect

Active air terminal with ΔT 50 µs efficiency, Plug & Play Connect module and integrated lightning strike counter.

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Prevectron 3 S40 Connect

Prevectron 3 S40 Connect

Reliable lightning protection with ΔT 40 µs efficiency, IoT monitoring, solar power supply and reduced carbon footprint.

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Prevectron 3 TS25 Connect

Prevectron 3 TS25 Connect

ESE air terminal with ΔT 25 µs efficiency, OptiMax technology, remote monitoring and M2M communication.

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Prevectron 3 TS10 Connect

Prevectron 3 TS10 Connect

Active air terminal with ΔT 10 µs efficiency, 24/7 IoT monitoring, high performance and certified reliability.

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Quality and Certifications

Statement on E.S.E. air terminals 2022

Statement of the Technical Inspection of the Czech Republic

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Test Report 2025

PREVECTRON active lightning conductor

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Czech Certificate 2025

PREVECTRON active lightning conductor

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CRNS Certificate

PREVECTRON active lightning conductor

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French Standard

NF C 17-102/1995

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French Standard

NF C 17-102/2011

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Protection Radius

Protected area radius

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Statement 2017

Statement of the Technical Inspection of the Czech Republic

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Statement 2025

Statement of the Technical Inspection of the Czech Republic

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Technical Inspection

Provision of information

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Prevectron 3 Connect – brochure

All important information related to the Prevectron 3 Connect system.

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