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Early Streamer Emission Terminal


ERICO INTERCEPTOR ESE i-Series generates controlled magnitude and frequency pulses at the tip of the terminal during high static fields prior to a lightning discharge. This enables the creation of an upward leader from the terminal that propagates toward the downward leader coming from the thunder cloud.

These early streamer emission air terminals (ESEAT) are in accordance with the 2011 edition of NFC 17-102. The design requirements, protection level calculations and protection radius are obtained from this standard. Due to the internal control circuit, the ERICO INTERCEPTOR ESE i-Series enables the early launching of an upward leader compared to other passive components.

The ERICO INTERCEPTOR ESE i-Series has been extensively tested at an independent high-voltage laboratory in accordance with the revised 2011 requirements of French NFC 17-102. The testing, as defined in the standard, was designed to simulate naturally occurring conditions and allow comparison of the performance between differing types of lightning protection systems.


  • Designed and tested to NF C 17-102 and similar standards
  • Available in three models to suit specific site requirements
  • Suitable for use with a variety of downconductor systems including tape, stranded conductor and ERICO ERICORE conductor


Part Number SI40I
Material Stainless Steel 304L (EN 1.4306)
Triggered Advance, ∆T 40 µs
Effective Projected Area 25.9 in²
Temperature 248 °F Max
Diameter (Ø) 1.1"
Height (H) 26.95"
Thread Size (TS) MF25
Unit Weight 3 lb
Standard Packaging Quantity 1 pc
UPC 78285684794
EAN-13 8711893132656

Pentair, CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH and LENTON are owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves the right to change specifications without prior notice.



Instruction Sheets

Test Reports