DEHNshield TNS Basic FM
Ready-to-connect, application-optimized combined arrester for TN-S systems for use in the main power supply system (4+0 circuit) in residential buildings without external lightning protection (also with overhead line feed), with potential-free remote signaling contact.
DEHNshield
Ready-to-connect, application-optimized combined arrester type 1 + type 2 based on spark gaps
Space-saving spark gap technology with only 1 module per pole enables compact design
Meets minimum requirements for lightning current discharge capacity according to 0100-534
Enables compact lightning protection equipotential bonding including terminal device protection
Discharge capacity up to 50 kA (10/350 s)
Function / defect indication by green-red marking in the viewing window
High follow current extinguishing capacity (Ifi = 25 kAeff)
Technical data:
SPD according to EN 61643-11 / ... IEC 61643-11 Type 1 + Type 2 / Class I + Class II
Energetically coordinated protective effect to the terminal device (≤ 10 m) Type 1 + Type 2 + Type 3
Nominal voltage AC (UN ) 230 / 400 V (50 / 60 Hz)
Highest continuous voltage AC (UC ) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 s) [L1+L2+L3+N-PE] (Itotal ) 30 kA
Lightning impulse current (10/350 s) [L, N-PE] (Iimp ) 7.5 kA
Nominal discharge current (8/20 s) [L/N-PE]/[L1+L2+L3+N-PE] (In ) 12.5 / 50 kA
Protection level [L-PE]/[N-PE] (UP ) ≤ 1.5 / ≤ 1.5 kV
Follow current extinguishing capability AC (Ifi ) 25 kAeff
Follow current limitation / selectivity Non-tripping of a 35 A gG fuse up to 25 kAeff (prosp.)
Response time (tA ) ≤ 100 ns
Max. mains-side overcurrent protection 160 A gG
TOV voltage [LN] (UT) characteristic 440 V / 120 min. strength
Operating temperature range (TU ) -40 °C ... +80 °C
Function / defect indicator green / red
Number of ports 1
Connection cross-section (L1, L2, L3, N, PE, 9) (min. ) 1.5 mm2 single / fine-stranded
Connection cross-section (L1, L2, L3, N, PE, 9) (max. ) 35 mm2 multi-stranded / 25 mm2 fine-stranded
Mounting on 35 mm top hat rail in accordance with EN 60715
Housing material Thermoplastic, color red, UL 94 V-0
Installation location Indoor
Protection class IP 20
Installation dimensions 4 TE, DIN 43880
Approvals VDE
FM contacts / contact type changeover
Switching capacity AC 250 V / 0.5 A
Switching capacity DC 250 V / 0.1 A, 125 V / 0.2 A, 75 V / 0.5 A
Connection cross-section for FM terminals max. 1.5 mm2 single / fine-stranded
| Property | Value |
| Maximum continuous voltage AC: | 255 V |
| Lightning impulse current (10/350 µs): | 30 kA |
| Test class: | Type 1 and 2 |
| Number of poles: | 4 |
| Nominal voltage AC: | 230 V |
| Size: | 4 TE |
| Remote signaling: | yes |
| Signaling on the device: | optical |
| Energetically coordinated protective effect to the terminal device: | yes |
| Mounting type: | DIN rail TH35 |
| Protection level N-PE: | 1.5 kV |
| Follow current extinguishing capacity: | 25 kA |
| Max. conductor cross-section rigid (single/multi-wire): | 35 mm² |
| Max. conductor cross-section flexible (fine-stranded): | 25 mm² |
| Network type TN-S: | yes |
| Protection level L-PE: | 1.5 kV |
| Protection class (IP): | IP20 |
