Page 71 - Surge-Protection-E_0.pdf

Surge Arresters – Type 2

DEHNguard S ... VA
• Multi-purpose surge arrester consisting of a base part
and a plug-in protection module
• Leakage-current-free series connection of a varistor
and a spark gap in the pluggable protection module
• High reliability due to "Thermo Dynamic Control" SPD
monitoring device
• Energy coordination with other arresters of the Red/Line
product family
• Easy replacement of protection modules without tools due
to module locking system with module release button
• Narrow (modular) design according to DIN 43880
• Multifunctional terminal for connecting conductors
and busbars
For protecting low-voltage consumer installations against surges. For installation
in conformity with the lightning protection zone concept at the boundaries from
0B – 1 and higher.

DEHNguard S ... VA: Modular single-pole surge arrester with a varistor connected in series with a spark gap in the pluggable protection
module
DEHNguard S ... VA FM: Modular single-pole surge arrester with a varistor connected in series with a spark gap in the pluggable protection
module; with remote signalling contact for monitoring device (floating changeover contact)

The single-pole DEHNguard S ... VA surge arresters are an ideal supple- A high discharge capacity, complete absence of leakage currents, a low
ment to the proven DEHNguard product families. The special series con- voltage protection level and the dual “Thermo Dynamic Control” moni-
nection of a spark gap and a varistor in the protection module opens up toring and disconnection device describe the high level of device safety.
new fields of application. It is advisable to use DEHNguard S ... VA devic- The DEHN-specific “Thermo Dynamic Control” disconnector ensures that
es to protect, for example, systems with permanent insulation monitoring the arresters enter a safe and isolated state, even in case of extreme
and the traction power lines in railway systems where complete absence overload. For this purpose, the surface temperature of the heavy-duty
of leakage currents is required. DEHNguard S ... VA surge arresters are also varistor and the intensity of the discharge current are used for evaluation.
suited for protecting power line communication systems. In addition to the standard visual indication with red and green indicator
Multifunctional terminals provide almost unlimited flexibility in terms of flags, the DEHNguard S VA ... FM devices feature a three-pole remote
connection to one another, but also to other DIN rail mounted devices on signalling terminal. As the remote signalling contact is designed as a float-
the distribution board. However, it is not only flexibility that characterises ing changeover contact, the remote signal can, depending on the circuit
the DEHNguard S ... VA family. Its distinctive performance parameters set concept, be used as a make or break contact.
standards worldwide:

DEHNguard S VA 952 080 952 082 952 084 DG S 75 VA
DG S 275 VA
DG S 385 VA
Modular single-pole surge arrester with a varistor connected in series with a spark gap in the pluggable protection module.
952 080 4013364127296 04 01 02 04 107 g
952 082 102,20 € 4013364127319 04 01 02 04 113 g
97,30 €
Type DG S ... 75 VA 275 VA 385 VA 952 084 4013364127333 04 01 02 04 117 g
102,20 €
Part No. 952 080 952 082 952 084
SPD according to EN 61643-11 / IEC 61643-11 type 2 / class II type 2 / class II type 2 / class II
Max. continuous operating voltage (a.c.) (UC) 75 V (50 / 60 Hz) 275 V (50 / 60 Hz) 385 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 10 kA 10 kA 10 kA
Max. discharge current (8/20 µs) (Imax) 20 kA 20 kA 20 kA
Voltage protection level (UP) ≤ 1.1 kV ≤ 1.5 kV ≤ 1.75 kV Surge Arresters – Type 2
Max. mains-side overcurrent protection 100 A gG 100 A gG 100 A gG
DEHNguard S VA FM 952 085 952 087 952 089 DG S 75 VA FM
DG S 275 VA FM
DG S 385 VA FM
Modular single-pole surge arrester with a varistor connected in series with a spark gap in the pluggable protection module;
with floating remote signalling contact. 952 085 952 087 4013364127302 04 01 02 04 111 g 116 g
115,40 €
4013364127326 04 01 02 04
952 089 110,50 € 4013364127340 04 01 02 04 121 g
115,40 €
Type DG S ... 75 VA FM 275 VA FM 385 VA FM
Part No. 952 085 952 087 952 089
SPD according to EN 61643-11 / IEC 61643-11 type 2 / class II type 2 / class II type 2 / class II
Max. continuous operating voltage (a.c.) (UC) 75 V (50 / 60 Hz) 275 V (50 / 60 Hz) 385 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 10 kA 10 kA 10 kA
Max. discharge current (8/20 µs) (Imax) 20 kA 20 kA 20 kA
Voltage protection level (UP) ≤ 1.1 kV ≤ 1.5 kV ≤ 1.75 kV
Max. mains-side overcurrent protection 100 A gG 100 A gG 100 A gG
Accessories for DEHNguard S ... VA

Varistor-Based Protection Module for DEHNguard S ... VA 952 025 952 027 952 029 DG MOD 75 VA
DG MOD 275 VA
DG MOD 385 VA
Protection module for DEHNguard S ... VA arresters comprising a varistor connected in series with a spark gap.
952 025 4013364127357 04 01 02 04 34 g
952 027 86,80 € 4013364127364 04 01 02 04 40 g
Type DG MOD 75 VA DG MOD 275 VA DG MOD 385 VA 952 029 4013364127371 04 01 02 04 44 g
81,90 €
86,80 €
Part No. 952 025 952 027 952 029
Max. continuous operating voltage (a.c.) (UC) 75 V 275 V 385 V
Valid as of August 1, 2020 You will find detailed product information on our website 67