4 © Siemens AG • 07/2003
The 3EL2 surge arrester serves to protect the insulation of a system (or of one of its components) from
undue stresses resulting from overvoltages.
Technical data
The standard model is suitable for an installation altitude of up to 1000 m above sea-level and for a
rated frequency between 48 Hz and 62 Hz.
Fig. 1 Surge arrester type 3EL2
The surge arrester meets the following standards:
Standard Classification
VDE 0675, Teil 4/A2 : 2000-07 10 kA
IEC 60099-4, Ed. 1.2, 2001-12 10 kA, Heavy duty
ANSI C62.11-1999 Station valve arrester
The rating plate [Fig. 2] will be found on the lowest flange (in some cases this has a special design in
accordance with customer requirements).
1 Order number 6 Pressure relief class
2 Rated voltage 7 Year of manufacture
3 Continuous voltage 8 Works serial no.
4 Rated discharge current 9 Module no. of upper arrester unit
5 Line discharge class 10 Module no. of lower arrester unit
Fig. 2 Rating plate
In the case of arresters in several sections, each module will also be provided with a module plate [Fig.
3]:
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