Overvoltage arrester Type 2
SURGE ARRESTER NVA280 80kA 4P CL.2 TN-S
NVA280-4
SCARICATORE SCHALT NVA280 TIPO 2 PER SOVRATENSIONI CON PROTEZIONE TERMICA INTERNA
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Technical Specifications
Type
2
Number of Poles
4
Number of modules
4
Max continuos voltage uc
280V P-N / 255V N-PE
Nominal discharge impulse current (8/20µs) In
80kA
Max. discharge current (8/20µs) Imax
150kA
Net System
TN-S
Integrated Thermal disconnector
yes
Voltage protection level Up
< 1300V at In
Max backup fuse
125A gL/gG
Response time tA
<25ns
Maximum Terminal Capacity
50 stranded wire or 35 flexible wire MMQ
Working temperature
-40 ... +80 GC
Torque
4 NM
Protection degree
IP20
Mounting
on bar DIN 35 mm EN 60715
Standard
EN 61643-11
Megiston