Plug-in surge arrester type 2 for 400/690V networks 

• Complete unit consisting of cover and base, pre-mounted and ready for connection 
• VDE-tested 
• Suitable for TN, TT and IT network systems 
• NPE spark gap designed for max 440 V AC (IEC 60364-5-53) 
• Arresting capacity of the spark gap MB25 up to 25 kA (10/350) 
• Plug-in cover; cover can be separated from base without tools  
• Including thermal and dynamic cut-off unit 
• With visual display of defects 
• With remote signalling 
• Labelled connections 
• Vibration-proof through Shock Guard 
• Particularly suitable for use in wind power plants

Application example: Industrial and wind power plants

Connection options

V20-C3+NPE400+FS
Nominal voltage UN 400
SPD to EN 61643-11 Type 2
SPD to IEC 61643-11 Class II
Lightning protection zone LPZ 1→2
Nominal discharge current (8/20) In 20
Arrestor surge current (8/20) [total] ITotal 8/20 50
Maximum discharge current (8/20 μs) Imax 40
Voltage protection level Up 
Response time tA 
Maximum back-up fuse 125
Temperature range ϑ -40 +80
Division unit TE (17.5 mm) 4
Protection rating IP20
Connection cross-section rigid 2,5-35
Connection cross-section, multi-wire 2,5-35
Connection cross-section, flexible 2,5-35