Dehn DV M TN 255 combined lightning current and surge arrester. Manufacturer: Dehn. Designation: Dehnventil M combined lightning current and surge arrester. Type: DV M TN 255. Mains form DC: No. Mains form TN: Yes. Number of poles: 2. Lightning impulse current (10/350 µs): 50 kA. Maximum continuous voltage AC: 264 V. Rated voltage AC: 230 V. Protection level: 1.5 kV. Protection level L-N: 1.5 kV. Protection level L-PE: 1.5 kV. Protection level N-PE: 1.5 kV. Consecutive current quenching capacity: 50 kA. Specific energy (W/R): 625 kJ/ohm. Max. overcurrent protection device Stub arrester: Yes. Overcurrent protection device Stub wiring (fuse): 315 A. Max. overcurrent protection device V-wiring: 315 A. Overcurrent protection device V-wiring (fuse): 125 A. Mounting type: Top-hat rail TH35. Size: 4 TE. Max. conductor cross-section rigid (single): 50 mm². Max. conductor cross-section flexible (fine-stranded): 35 mm². Remote signalling: No. Signalling on the device: Optical. Test class: Type 1 and 2. Energy-coordinated protective effect to the terminal device: Yes. Voltage-switching spark gap technology: Yes. Protection class (IP): IP20. Dehn combined lightning current and surge arrester DV M TN 255: further details. Multipole combined lightning current and surge arrester Dehnventil modular, type 1 + type 2 to EN 61643-11 on spark gap basis, consisting of base part and plug-in protection modules. Highest system availability due to RADAX flow sequence current limitation. Enables end device protection. For protecting low-voltage consumer installations against overvoltages, even in the event of direct lightning strikes. Can be used according to the lightning protection zone concept at interfaces 0A to 2. EAN: 4013364108097.