Designed and Manufactured in Australia


Dynamic response to the approach of a lightning downleader

Non-radioactive technology

No external power required

Three replaceable terminals for specific elevation requirements

UL Listed


Collection Volume Method (CVM)

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What is System 3000?

The ERITECH® SYSTEM 3000 is a technically advanced lightning protection system. The unique features of this system allow the achievement of reliable lightning capture and control.

The ERITECH® DYNASPHERE air terminal provides a preferred point for lightning discharges which would otherwise strike and damage an unprotected structure and/or its contents. The ERITECH® DYNASPHERE is optimally connected to an ERITECH® ERICORE downconductor and low impedance grounding system in such a way as to provide a totally integrated system.

ERITECH SYSTEM 3000 includes ERITECH® DYNASPHERE air terminal, ERITECH® ERICORE downconductor, Lightning event counter, Purpose designed low impedance grounding system.

These components form an integral part of the ERICO® Six Point Plan of Protection. Each component must be considered independently and ultimately integrated together to form the complete lightning protection system. Without such integration there is limited protection.

While it is possible to implement a hybrid system using other components, it is important to realize that inefficiencies in any substitute represents an inefficiency in the protection system as a whole.

How It Works?

During the dynamic phase of the thunderstorm, on closer approach of the downward leader, the semi-sphere or dome of the ERITECH® DYNASPHERE will rise in voltage via capacitive coupling. When the voltage is high enough, a triggering arc is created across the air gap between the sphere and grounded rod.

The triggering arc has two effects: (i) it produces the large number of free electrons needed to initiate an upward streamer  and (ii) it causes a sudden “snap” increase in the electric field above the air terminal, which provides the additional energy to initiate and convert a strong propagating upward leader.

These two effects develop stable leader propagation to help ensure reliable lightning capture. The size of the air gap is optimized so that a triggering arc only occurs when the ambient electric field is high enough to ensure a stable upward leader can be developed to successfully intercept the downward leader.

Erico CVM System 3000 - how it works - - Erico Bangladesh

The ERITECH DYNASPHERE has been designed to meet the criteria necessary for the controlled emission of a streamer. The concept of “controlled” is important because it is not effective to launch a streamer too early – the ambient field will not be large enough to convert the streamer to a leader and so the streamer will cease to propagate. This will leave a space charge behind which can inhibit future initiation attempts.


Design Support

The placement and application of the ERITECH® SYSTEM 3000 is critical to ensure optimal protection is provided. ERICO’s unique computer aided design program enables easier, reliable application of the ERITECH SYSTEM 3000, taking into account individual site parameters and the variables required to complete an optimal design using the CVM. 

Therefore, to obtain final design for any project is time consuming, since verdor’s obtain design directly from nearest ERICO office.

Early Streamer Emission

Lightning Protection System

Designed & Manufactured in Australia

Early Streamer Emission

Lightning Protection System

Designed & Manufactured in France


Lightning Protection System

UL Approved products are available
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