Arnocanali SS440.4FI - ENERPRO Surge arrester T2 3P+N integrated fuse

Arnocanali SS440.4FI - ENERPRO Surge arrester T2 3P+N integrated fuse

Protection class T2 for TT-TN networks

Surge arrester with integrated fuse, to be installed in secondary low voltage distribution panels, to prevent the effects deriving from atmospheric phenomena and effectively protect the connected equipment. Includes remote fault signaling contact.

Poles: 3(L-N) + 1(N-PE)
Remote signaling: Yes
Occupied modules: 4
Dimensions in mm: 90x72x67
Reference standards: EN 61643-11 | IEC 61643-11 | UL 1449 ed.4
Replacement cartridge: SS440FI

Technical data
Networks: 230/400V
Maximum continuous AC voltage: 275V
Nominal discharge current (8/20 μs): 15 kA (per pole)
Maximum discharge current (8/20 μs): 25 kA (per pole)
Specific energy per pole: 40 kJ/Ω
Voltage protection level: 1.25 kV
Residual current: <1 mA
Follow-on current: None
Short circuit with maximum protection: 100 kA
Internal protection fuse: 40AgG
TOV voltage 120 minutes (L/N): 440 Vac
TOV voltage 5 seconds (N/PE): 335 Vac
Protection degree: IP20
Operating temperature: -40°C +85°C
Metal rail mounting: DIN 35 (EN60715)
Min/max connection sections: 2.5 - 25 mm²
Fault indicator: Green/Red
Enclosure material (thermoplastic): UL 94V0
Tightening torque: According to assembly instructions

Replacement cartridge (if red light)
Arnocanali SS440FI – Cartridge for model with integrated fuse and remote signalling

Tip:
Thanks to the integrated fuse, this model effectively solves the need for dedicated protection for the arrester, with advantages in terms of space in the panel and safety. Ideal in the design phase to guarantee a complete and compliant solution. In the event of a fault, consider whether to directly replace the entire module: this is often more economically convenient.