DEHNventil®, multi-pole, modular combined arrester for protecting low-voltage consumer systems in industrial and residential areas against switching and lightning surges, can be used according to the lightning protection zone concept at the interfaces 0A - 2,, arrester type 1 according to EN 61643-11:, ready-to-connect combined arrester based on spark gaps, consisting of a base part and plugged-in protection modules, highest system availability due to RADAX-Flow follow current limitation, switch-off selective for 20 A gL/gG fuses up to 50 kAeff short-circuit current, enables terminal device protection, function/fault indication by marking in the viewing window, easy protection module replacement by module release button, available as FM variant with 3-pole terminal set for connecting the remote display, DEHNventil® M TNC 255 (FM), complete circuit for TN-C systems with 230/400 V / 50 Hz - nominal voltage
| Property | Value |
| Maximum continuous voltage AC: | 264 V |
| Lightning impulse current (10/350 µs): | 75 kA |
| Protection level: | 1.5 kV |
| Test class: | Type 1 and 2 |
| Number of poles: | 3 |
| Nominal voltage AC: | 230 V |
| Blow-out: | no |
| Size: | 6 TE |
| Remote signaling: | no |
| Signaling on the device: | optical |
| Network type TN-CS: | no |
| Network type DC: | no |
| Network type TN: | no |
| Energetically coordinated protective effect on the end device: | yes |
| Mounting type: | DIN rail TH35 |
| Network type TT: | no |
| Specific energy (W/R): | 1400 kJ/Ohm |
| Integrated backup fuse: | no |
| Follow current extinguishing capacity: | 50 kA |
| Max. conductor cross-section rigid (single-/multi-wire): | 50 mm² |
| Max. conductor cross-section flexible (fine-stranded): | 35 mm² |
| Network type other: | no |
| Network type TN-C: | yes |
| Network type IT: | no |
| Network type TN-S: | no |
| Protection class (IP): | IP20 |
