A surge arrester, lightning arrester and surge arrester is a device designed to protect electrical equipment against transient overvoltages, limiting the duration and frequency of the line current.

Overvoltages may occur, for example, when switching on or off an unloaded overhead line, or when a lightning strikes an overhead line, and may destroy the insulation and other network components.

Rated AC voltage [V] 400
Signaling of tripping on the device. Optical
Size 1 module
Number of poles 1
Network system TN network
Maximum continuous operating voltage AC [V] 275
Blowing No.
Type 1 + 2 protection class
With actuation signaling contact No.
Maximum L-PE / N-PE [kV] protection level 1.5000
Maximum L-N [kV] 0 protection level
Surge current (10/350) [kA] 4.5000 Cross-section of a flexible cable with a ferrule end [mm2] from 2.5
Cross-section of a flexible cable with a ferrule [mm2] up to 25
The cross-section of a rigid conductor (single-wire, multi-wire) [mm2] from 2.5
Cross-section of a rigid conductor (single-wire, multi-wire) [mm2] up to 35
Mounting method DIN 35 mm mounting rail
Protection level [kV] 1.5