Surge protection devices are used as a protection of electrical installations against transient overvoltage and indirect lightning strokes. These SPDs are designed and certified according to EN 61643-11. The indication unit helps users to know the status of device and remote-signal port is able to provide remote indication and alarm. Plug-in module design makes it convenient to change the used modules without device disconnection.
Maximum impulse current Iimp 12.5 kA (10/350 µs) per phase / 50 kA (10/350 µs) for NPE (+1) module
Nominal discharge current In 25 kA (8/20 µs) per phase / 50 kA (8/20 µs) for NPE (+1) module
Maximum discharge current Imax 50 kA (8/20 µs)
Maximum continuous operational voltage Uc 275 V AC per phase / 255 V AC for NPE (+1) module
Due to Iimp 12.5 kA per pole suitable for LPL III and LPL IV according to EN 62305 in standard 3-phase TN-C and TN-S installations
Versions with 1+0, 1+1, 2+0, 3+0, 3+1 and 4+0 connection
Plug-in module design, With and without remote indication contact, Device status indicator