Surge Protector DEHNguard M TNS 275 - 952400
4-pole, modular, ready-to-connect surge protector for TN-S networks with a rated voltage of 230/400 V (4+0 connection system).
- On request
Product details
- Brand
- DEHN
- Reference
- 952400
- EAN13
- 4013364108455
- MPN
- 952400
Data Sheet
Brak danych technicznych
Description
Description
Protection of electrical installations
DEHNguard M TNS
Modular surge protector for TN-S networks with a rated voltage of 230/400 V
Advanced surge protection technology
DEHNguard DG M TNS 275 is a professional, modular surge protector designed for TN-S / 230 V AC networks, providing type 2 protection in accordance with EN 61643-11.
Thanks to the use of zinc oxide varistors, the device provides high surge current discharge capacity, and the "Thermo Dynamic Control" system monitors the condition of the device and ensures its safe disconnection in the event of a failure.
Key Features
- Type 2 (Class II) in compilance to EN/IEC 61643-11
- Maximum continuous AC voltage: 275 V
- High lightning surge current capacity
- Visual status indication: green/red
- Certifications: KEMA, UL, VDE
Innovative technical solutions
Advanced, secure, four-pole protection system dedicated to TN-S networks, in which each circuit - L1, L2, L3, and N- is equipped with its own protection module that discharges surge energy directly to the PE conductor.
Each track contains a varistor with a disconnect circuit that monitors the condition of the components and reacts in the event of an overload. This solution prevents damage to the module and eliminates the risk of overheating, ensuring continuity and safety of operation even with frequent power surges.
The L/N–PE topology used is adapted to the characteristics of low-voltage networks and guarantees rapid operation of the arrestor during voltage surges - the design meets the requirements of classic AC systems, offering effective and predictable protection in TN-S switchgears.
-40°C to +80°C
≤ 25 ns
Easy installation and operation
Professional DIN rail mounting with intuitive status indication for reliable operation monitoring.
The device may only be connected and installed by an electrically skilled person, observing national standards and safety regulations in accordance with IEC 60364-5-5. The compact design occupies only 4 modules on a standard DIN rail.
Built-in status indicator in the inspection window provides clear operational feedback - green indicates normal operation, while red signals a fault condition requiring device replacement.
Installation requirements
- Installation by qualified electrician only
- Indoor installation only (IP20)
- Flexible cable cross-section range
Specifications
DEHNguard M TNS (952400) |
|
| SPD according to EN 61643-11 / IEC 61643-11 | type 2 / class II |
| Energy coordination with terminal equipment (≤ 10 m) | type 2 + type 3 |
| Nominal voltage AC (U N ) | 230 / 400 V (50 / 60 Hz) |
| Max. continuous operating voltage AC (U C ) | 275 V (50 / 60 Hz) |
| Nominal discharge current (8/20 µs) (I n ) | 20 kA |
| Max. discharge current (8/20 µs) (I maks. ) | 40 kA |
| Voltage protection level [L-PE]/[N-PE] (U P ) | ≤ 1,5 / ≤ 1,5 kV |
| Voltage protection level [L-PE]/[N-PE] przy 5 kA (U P ) | ≤ 1 / ≤ 1 kV |
| Response time (t A ) | ≤ 25 ns |
| Max. mains-side overcurrent protection | 125 A gG |
| Short-circuit withstand capability for max. mains-side overcurrent protection (I SCCR ) | 50 kA rms |
| Temporary overvoltage (TOV) (U T ) – Characteristic | 335 V / 5 s – withstand |
| Temporary overvoltage (TOV) (U T ) – Characteristic | 440 V / 120 min – safe failure |
| Operating temperature range (T U ) | -40°C ... +80°C |
| Operating state / fault indication | green / red |
| Number of ports | 1 |
| Cross-sectional area (min.) | 1,5 mm 2 solid / flexible |
| Cross-sectional area (max.) | 35 mm 2 stranded / 25 mm 2 flexible |
| For mounting on | 35 mm DIN rails acc. to EN 60715 |
| Enclosure material | thermoplastic, red, UL 94 V-0 |
| Place of installation | indoor installation |
| Degree of protection | IP 20 |
| Capacity | 4 module(s), DIN 43880 |
| Approvals | KEMA, VDE, UL |
|
Arrester use at 16.7 Hz - traction power supply systems |
|
| – Test voltage AC (U C ) | 275 V |
| – Nominal AC voltage (U N ) | 230 / 400 V |
| – Nominal frequency AC (f N ) | 16,7 Hz |
Product Details
-
Brand
-
Reference952400
-
EAN134013364108455
-
MPN952400
