The DEHNbloc H is a modular, single-pole, spark-gap-based lightning current arrester that is type 1 according to EN 61643-11 standards. It utilizes RADAX Flow spark gap technology with high follow current limitation to protect low-voltage consumer’s installations from surges and even direct lightning strikes. The device is designed for installation in accordance with the lightning protection zone concept, specifically at the boundaries from 0A-1, and offers a maximum continuous voltage of AC 255V. Its specifications include a DIN size 2 TE (Grid Dimension), a protection grade of IP20, and DIN-rail of 35mm, with a max flexible wire cross-section of 35mm² and a max rigid (solid/strand) wire cross-section of 50mm².
Specifications
System configuration DC : No
System configuration IT : Yes
System configuration TN : Yes
System configuration TN-C : Yes
System configuration TN-C-S : Yes
System configuration TN-S : Yes
System configuration TT : Yes
System configuration other : Yes
Number of conductors (without earthing) : 1
Lightning impulse current (10/350 µs) (kA) : 50
Nominal discharge surge current (8/20) (kA) : 50
Max. continuous voltage AC (V) : 255
Nominal voltage AC (V) : 230
Voltage protection level (kV) : 4
Follow current extinguishing capability (kA) : 50
Mounting method : DIN rail (top hat rail) 35 mm
Construction size : 2 modular spacing
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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