The DEHNbloc H is a modular single-pole lightning current arrester based on spark-gap technology. It is a type 1 device as per EN 61643-11 with RADAX Flow spark gap technology and high follow current limitation. Designed for the protection of low-voltage consumer installations against surges and direct lightning strikes, it should be installed in accordance with the lightning protection zone concept at boundaries from 0A-1. The device features a maximum continuous voltage AC of 255V, a nominal discharge current of 100kA, and it can accommodate 3 wires excluding earth, with a maximum flexible conductor cross-section size of 35mm² and a maximum rigid conductor size of 50mm². The protection degree is IP20 and it is mountable on a 35mm DIN-rail within a network structure TN-C.
Specifications
System configuration DC : No
System configuration IT : No
System configuration TN : No
System configuration TN-C : Yes
System configuration TN-C-S : No
System configuration TN-S : No
System configuration TT : No
System configuration other : No
Number of conductors (without earthing) : 3
Lightning impulse current (10/350 µs) (kA) : 100
Nominal discharge surge current (8/20) (kA) : 100
Max. continuous voltage AC (V) : 255
Nominal voltage AC (V) : 230
Voltage protection level (kV) : 4
Follow current extinguishing capability (kA) : 50
Specific energy (W/R) (kJ/Ohm) : 2500
Mounting method : DIN rail (top hat rail) 35 mm
Construction size : 6 modular spacing
Max. conductor cross section solid (solid, stranded) (mm²) : 50
Max. conductor cross section flexible (fine-strand) (mm²) : 35
With remote signalling contact : No
Exhausting : No
Signalling at the device : None
Category type 1 : Yes
Integrated backup fuse : No
Suitable for outdoor use : No
Degree of protection (IP) : IP20
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