HGS 100 Ex

Article number: 10 201
  • High power gas discharge tubes marked with Ex are suitable for use in explosion hazardous areas, where ensure the equipotential bonding between inactive parts, which are not conductively interconnected due to the operating conditions.
  • Recommended for insulated flanges and insulated screw joints bridging in cathodic protected parts of industrial technology.
  • In case of origin of potential difference between those parts, the high power gas discharge tube ignites and interconnects both insulated parts for a transient time.
  • High protection degree of the housing allows using indoors, outdoors and also in the underground.
  • Suitable construction prevents the formation of sparks and minimizes the release of heat generated during the discharge of the highest lightning impulse current.
Certified for explosive areas Yes
EU - Type Examination Certificate II 2G Ex mb IIC T6 G,
II 2D Ex mb IIIC T80 °C D
EU - Type Examination Certificate number FTZÚ 04 ATEX 0255X
DC ignition voltage 400 ÷ 750 V
Maximum discharge current (8/20) Imax 100 kA
Nominal discharge current (8/20) In 75 kA
Rated AC withstand voltage of mains frequency UW AC 285 V
Rated impulse sparkover voltage Ur imp < 1 400 V
Impulse discharge current (10/350) Iimp 100 kA
Charge Q 50 As
Specific energy W/R 2 500 kJ/Ω
Voltage protection level at Iimp Up < 1 kV
Insulation resistance at 100 V DC Ri > 1 GΩ
Capacitance at 1 MHz C < 25 pF
Housing material Stainless steel
Casing Polyurethane resin
Degree of protection IP67
Ambient temperature range for Class T6 ϑ - 20 ÷ 30 °C
Installation By cable, On the flange
Lifetime > 100 000 h
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