Overvoltage arrester Type 2
SURGE ARRESTER 3+1P, 275V, Imax: 40kA
SUA20-31
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Technical Specifications
Type
2
Number of Poles
3+N
Max continuos voltage uc
275V
Nominal discharge impulse current (8/20µs) In
10kA
Max. discharge current (8/20µs) Imax
20kA
Voltage protection level Up
<1200V
Response time tA
<25ns
Max backup fuse
80A gL/gG
Short circuit strenght
20kA 50Hz
Working temperature
-40 ... +80 GC
Number of modules
4
Protection degree
IP20
Mounting
On DIN rail 35 mm according to EN 50022
Maximum Terminal Capacity
35 stranded wire, 25 flexible wire MMQ
Standard
CEI 81-10; EN 62305
Megiston