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AC surge arrester 4P 12,5 kA Type T1+2 Mersen
Manufacturer: Mersen
INDEX: 44120404
AC surge arrester, Surge-Trap® K model – K1 series, is a Type 1+2 / Class I+II device designed to protect electrical installations against lightning strikes (10/350 μs) and induced voltage surges (8/20 μs).
It is installed as the first line of defence for a building's electrical installation. It can be used in areas with high exposure to severe weather conditions where external lightning protection systems are installed. Applicable to both residential and commercial buildings.
The AC surge arrester protects against induced surges, most often caused by nearby lightning discharges or direct lightning strikes to the building, as well as voltage surges in the power network resulting from failures or switching of large electrical loads.
It is installed to protect both the building's electrical installation and the devices connected to it, especially where the building is powered using photovoltaic systems.
Key product features:
- 4-pole model
- Lightning impulse current (10/350 μs): 12.5 kA per phase
- Nominal discharge current (8/20 μs): 20 kA per phase
- TT, TNC, TNS and isolated IT earthing systems. 230/400 V, 277/480 V networks
- Short-circuit current 25 kA
- No backup fuse required up to 315 A
- Distributed PE and equipotential EBB
- Shock and vibration resistant
- Certified by multiple bodies: IEC certificate (DEKRA and ENEC) and UL Type 1CA
- DIN rail mounting
| Width - number of modules: | 4 |
|---|---|
| Weight [kg]: | 0.64 |
| Dimensions [mm]: | 72 x 90 x 90.4 |
| AC protection type: | AC surge arrester |
|---|---|
| Nominal voltage [V]: | 230 |
| Type of protection: | AC |
| Max. voltage [V]: | 400 |
| Max. current [A]: | 50000 |
| Feed-in phases: | 3 |