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Lightning Equipotential Bonding


lsolating spark gaps with plastic coating and two stainless steel connections (Rd 12 mm).

  • For indirect connection / earthing of functionally isolated installation parts under lightning conditions
  • For lightning equipotential bonding according to IEC/EN 62305
  • For installation in buildings, outdoors, in damp rooms as well as for under-ground installation
Basic circuit diagram

Technical data

Type TYP481
Isolating spark gap according to EN 62561-3 / IEC 62561-3yes
Nominal discharge current (8/20 μs) In100 kA
Lightning impulse current (10/350 μs) Iimp100 kA
Class (lightning current carrying capability)H
Rated power-frequency withstand voltage (50 Hz) UwAC300 V
Power frequency sparkover voltage (50 Hz) Uaw≤ 1,2 kV
Rated impulse sparkover voltage Ur imp≤ 3,0 kV
Operating temperature range TU-20 °C – +80 °C
Degree of protectionIP 67
ATEX directive 94/9/ECEX II 2G EEx D IIC T6
Length (mm)210
Enclosure diameter (mm)51
Enclosure materialstainless steel / plastic coating
Connection (mm)Rd 12
Material (connection)stainless steel
Weight (kg)0.650


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