The DEHNgap Maxi is a single-pole, modular lightning current arrester, designed specifically for installation in 3+1 and 1+1 circuits of TT systems as per IEC 60364-5-53. This type 1 arrester complies with EN 61643-11, and is intended for the protection of low-voltage consumers’ installations against surges and even direct lightning strikes. Able to handle a nominal discharge surge current (8/20) of 100kA and a specific energy (W/R) of 2500 kJ/Ohm, it operates at a maximum continuous AC voltage of 255V. It features fiber optic cable signaling on the device and is housed in rail copper.
Specifications
System configuration DC : No
System configuration IT : No
System configuration TN : No
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 conductors (without earthing) : 1
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) : 2.5
Follow current extinguishing capability (kA) : 0.1
Specific energy (W/R) (kJ/Ohm) : 2500
Mounting method : Busbar
With remote signalling contact : No
Exhausting : No
Signalling at the device : With fiber optic cable
Category type 1 : Yes
Integrated backup fuse : No
Suitable for outdoor use : No
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