B25M Vseries and B50M Vseries are the encapsulated gas discharge tubes Type 1 according to EN 61643-11 and IEC 61643-11. These arresters are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0-1 (according to IEC 1312-1 and EN 62305), in the power supply lines, which are operated as TN-S and TT systems, where they provide the equipotential bonding between N and PE in the connections of 1+1 or 3+1. Thanks to the high insulation resistance at the release condition, the GDT will not cause the activation of RCD.
Note : For IT power supply networks use a special variant of gas dicharge tubes – find more in the catalogue’s annex for IT networks.
The marking M specifies a type of construction with removable module.
The marking of DS specifies a version with remote monitoring.
|Test class according to EN 61643-11:2012 and IEC 61643-11:2011||TYP1, CLASS I|
|Maximum continuous operating voltage||UC||255 V AC|
|Impulse discharge current for class I test (10/350)||Iimp||25 kA|
|Specific energy for class I test||W/R||156 kJ/Ω|
|Nominal discharge current for class II test (8/20)||In||30 kA|
|Voltage protection level at Iimp||Up||< 1,3 kV|
|Temporary overvoltage (TOV)||UT||1200 V/0,2 s|
|Response time||tA||< 100 ns|
|Follow current interrupt rating||Ifi||100 Arms|
|Housing material||Polyamid PA6, UL94 V-0|
|Degree of protection of enclosure||IP20|
|Operating temperature||ϑ||-40°C ... +80 °C|
|Cross-section of the connected conductors (at tightening moment of clamps 3 Nm)||
25 mm2 (solid)
16 mm2 (wire)
|Method of assembly||DIN rail 35 mm|
|Failure signalisation (S)||green - ok / red - failure|
|Potential free signal contact (DS) (recommended cross-section of remote monitoring max.1 mm2)||AC: 250 V / 0,5 A, DC: 250 V / 0,1 A|
|Lifetime||min.100 000 h|
|Article number||16 040|
|Installation instructions (1.84 MB)|
|2D model (517.54 KB)||for registered only|
|3D model (654.4 KB)||for registered only|
|Certificates (84.81 KB)||for registered only|
|EC declaration of conformity (81.36 KB)||for registered only|