The Dehn DEHNshield is a multipole type 1 and type 2 spark-gap-based combined lightning current and surge arrester, complying with EN 61643-11 standards. It features a compact design with a width of only 1 module/pole due to the utilization of space-saving spark gap technology. It is suitable for use in residential buildings and unique applications, and is capable of protecting terminal equipment. Designed to safeguard low-voltage consumer installations against surges, it even offers protection from direct lightning strikes. The arrester should be installed conforming to the lightning protection zone concept, at the boundaries from 0A – 2. It has a max continuous voltage AC of 255V, nominal voltage AC of 230V, and safety level of 1.5kV. It can withstand a lightning impulse current of 25kA.
Specifications
System configuration DC : No
System configuration IT : No
System configuration TN : Yes
System configuration TN-C : No
System configuration TN-C-S : No
System configuration TN-S : No
System configuration TT : Yes
System configuration other : No
Number of poles : 2
Lightning impulse current (10/350 µs) (kA) : 25
Max. continuous voltage AC (V) : 255
Nominal voltage AC (V) : 230
Voltage protection level (kV) : 1.5
Voltage protection level L-N (kV) : 1.5
Voltage protection level N-PE (kV) : 1.5
Follow current extinguishing capability (kA) : 25
Specific energy (W/R) (kJ/Ohm) : 156.25
Max. overcurrent protection device, parallel connection (fuse) (A) : 160
Max. overcurrent protection device, series connection (fuse) (A) : 100
Mounting method : DIN rail (top hat rail) 35 mm
Construction size : 2 modular spacing
Max. conductor cross section solid (solid, stranded) (mm²) : 35
Max. conductor cross section flexible (fine-strand) (mm²) : 25
Remote signalling : Yes
Signalling at the device : Optic
Test class : Type 1 + 2
Integrated backup fuse : No
Energy-coordinated protection effect with regard to the terminal equipment : Yes
Voltage switching spark gap technology : Yes
Overcurrent protected voltage tapping : No
Degree of protection (IP) : IP20
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