Standards
IEC 61643-11 / EN 61643-11
Type of Low Voltage Distribution System
TT TN-S
Suitable For
To protect the systems against the transient overvoltage (lightning)
Nominal AC Voltage of the System (U<sub>o</sub>)
400 / 690 V
Voltage Protection Level ( Up)
(L-N) 1.9 kV (N-PE) 1.9 kV (L-PE) 2 kV
Maximum Continuous Operating Voltage (U<sub>c</sub>)
(L-PE) 440 V (L-L) - V (L-N) 440 V (N-PE) 440 V
Temporary Overvoltage Test Value (U<sub>T</sub>)
(L-N) 581 V (N-PE) 1200 V
Discharge Current
Nominal 20 kA Maximum 80 kA Total 100 kA
