DGE Type 2 N-PE Surge Arrester
Surge protection devices for low voltage power equipment
The DGE is a Type 2 AC Surge Protection Device (SPD) dedicated to protect sensitive equipment against
over voltage which may occur in the AC network during a storm (lightning) or during switching electric
power sources (industrial interferences)..
In association with DGT or DGX surge arresters (see diagram), the DGE surge arrester provides
common and differential surge protection for AC networks, following the CT2 configuration in
IEC 60 364-5-534 standard.
Protection is based on specific gas tube which provides much lower residual voltages and high
discharge current capability on 8/20μs impulses.
The DGE is built with a plug-in module and a fixed base, which allows an easy and fast maintenance.
The DGE surge arrester can be used as secondary type 2 protection for 1 or 3-phase AC networks.
It is therefore installed as close as possible to the equipment to be protected. It is exclusively dedicated
to be connected between the Neutral (N) and Protective Earth (PE) wires, in association with DGT or
DGX connected between phases and Neutral.
The DGE surge arrester is DIN rail compatible.
Connection cables between DGT or DGX and the lines to be protected must be identical in crosssectional
area to the lines with a maximum of 25mm². The cross-sectional earthing cable from DGE
must equal half that of the main protection cable of the installation with a minimum of 4 mm² and
a maximum of 25 mm². If external lightning protection system is fitted, the minimum cross-sectional area
will be 10 mm².
DGE association with DGT or DGX can be easily done by bus bar T2 ref P8481.
|Description||Ref.||Dimensions (m)||Weight (kg)|
|DGE 400||P8319E||0,09 x 0,067|