Electrical Distribution

 
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Overvoltage arrester Type 2

  • General
  • Technical Table

Standards

Protection of an electrical installation and all electrical and electronic devices connected to this installation against destructive surges. Such voltage surges can be generated by lighting induced currents, by network polluting devices such a motors, frequency converters, dimmers, etc.., and by power supply networks switching operations.

Type
2
Number of Poles
1+N/PE, 2, 3, 3+N/PE, 4
Net System
1+N/PE (TT), 2 (TN), 3 (TN-C/IT), 3+N/PE (TT), 4 (TN-S)
Nominal discharge impulse current (8/20μs) In
1+N/PE (30kA), 2 (40kA), 3 (60kA), 3+N/PE (30kA), 4 (80kA)
Voltage protection level Up
< 900V a 5kA - < 1500V a 35kA
Response time tA
<25ns
Max backup fuse
125A gL/gG
Short circuit strenght
25kA 50Hz
Insulation resistance Risol
> 10000MΩ
Operating Temperature (°C)
-40 ... +80
Protection degree
IP20
Mounting
on DIN rail 35 mm according to EN 50022
Standard connection terminals (mmq)
50 stranded wire or 35 flexible wire
Remote signalling contact (Fm)
Absent
Standard
DIN VDE 0675 Teil 6-11:2002-12; EN61643-11:2002; I