V3T-12,5/50
Transitory, three-phase, Class I+II
Description
Protector of permanent overvoltages caused by increases in the network voltage, and of transient overvoltages caused by lightning strikes or network switching, in three phase installations.
In the event of a transient overvoltage, the equipment absorbs it by deriving it to earth (PE), thus preventing it from producing any damage to the devices connected to the network.
If due to an overvoltage, the protection will be inoperative, the equipment will show the warning window in red. In such a case, the protection module will have become inoperative, and must be replaced by another, pluggable and easy to replace.
SPECIFICATIONS>/th>
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Nominal voltage Un
230Vac (L/N) 400Vac (L/L)
Maximum voltage Uc
320Vac (L/N) 255Vac (N/PE)
Frequency
50-60Hz
Level of protection Up
<1,5kV (L/N) /<1,5 kV (N/PE)
Impulse intensity (10/350us) Iimp
12,5kA (L/N) 25kA (N/PE)
Maximum discharge intensity (8/20μs) Imax.
50kA (L/N) 100kA (N/PE)
Nominal discharge intensity (8/20μs) In
20kA (L/N) 25kA (N/PE)
Surge response time
≤25ns
Pre-existing protection fuse
160A gL
Maximum cable section in terminals
35mm2
Temperature ranges
-40º +80ºC / 80%
Grade of protection
IP20
No. of modules DIN
4
Assembly
Rail DIN 35
Standards
IEC 61643-11 / EN 61643-11
Class / Type
I+II
Codes and references
10003022 | V3T-12,5/50 – 3P+N 12,5/50kA |
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