Page 30 - Surge-Protection-E_0.pdf

Combined Arresters – Type 1 + Type 2
CIRCUIT INTERRUPTION
FUSE INTEGRATED
DEHNvenCI
• Spark-gap based combined lightning current and surge arrester
with integrated lightning current carrying backup fuse
• Energy coordination with other arresters of the Red/Line
product family
• Low voltage protection level UP ≤ 1.5 kV (including backup fuse)
• Maximum system availability due to RADAX Flow follow
current limitation
Combined Arresters – Type 1 + Type 2 • High lightning current discharge capacity of 25 kA (10/350 µs)
• Extinction of mains follow currents up to 100 kArms

• Capable of protecting terminal equipment
• Operating state / fault indication by green / red indicator flag
in the inspection window

DEHNvenCI 1 255:
Single-pole combined lightning current and
For protecting low-voltage consumer installations against surges and even direct
lightning strikes. For installation in conformity with the lightning protection zone
surge arrester with integrated backup fuse
concept at the boundaries from 0A – 2.
DEHNvenCI 1 255 FM: With remote signalling contact for monito-
ring device (floating changeover contact)
Featuring the functional Red/Line family design, coordinated DEHNvenCI The patented RADAX Flow technology for follow current limitation and
combined lightning current and surge arresters provide maximum system extinction ensures the high availability of the electrical consumer instal-
protection and take up little space. The features of the practice-proven lation to be protected.
DEHNventil family were combined with a lightning current carrying arrest- Even in case of short-circuit currents as high as 100 kArms, DEHNvenCI can
er backup fuse in an enclosure with a width of only two modules. be used in industrial systems without restrictions.
Due to the increasingly compact design of switchgear installations, the The ability to carry lightning impulse currents without destruction and
standard-compliant installation of lightning current arresters is difficult simultaneously reduce the energy to an acceptable level for terminal de-
for the user. The DEHNvenCI not only meets requirements regarding the vices ensures the availability of the switchgear installation in case of a
space-saving integration of a combined lightning current and surge ar- lightning strike. This considerably reduces the risk of cost-intensive fail-
rester, but also satisfies the protection requirements of modern switchgear ures.
installations. The integrated arrester backup fuse is dimensioned to ensure
maximum discharge capacity and optimal system protection. The operating state / fault indicator of DEHNvenCI, which houses the fuse
monitoring system and does not cause operating currents, shows the op-
The need to select and install an arrester backup fuse is eliminated, en- erating state of the arrester. Apart from the standard visual indicator with
suring short connecting cable lengths as required in IEC 60364-5-53. green and red indicator flags, DEHNvenCI 1 255 FM devices feature a
Consequently, DEHNvenCI is an efficient combined arrester which is easy three-pole remote signalling terminal. As the remote signalling contact is
to install. designed as a floating changeover contact, the remote signal can, depend-
The energy-coordinated arresters even allow protection of terminal devic- ing on the circuit concept, be used as a make or break contact.
es or sensitive electronic systems in modern switchgear installations if the
distance between DEHNvenCI and the loads is ≤ 10 m.

961 200 DVCI 1 255
961 205 DVCI 1 255 FM DEHNvenCI 255 (FM)
Single-pole combined lightning current and surge arrester with integrated lightning current carrying backup fuse for use in 230 / 400 V systems;
961 200 4013364145108 04 01 01 03 432 g
337,40 € FM version with floating remote signalling contact.
961 205 4013364145115 04 01 01 03 435 g
353,30 €
Type DVCI 1 ... 255 255 FM
Part No. 961 200 961 205
SPD according to EN 61643-11 / IEC 61643-11 type 1 + type 2 / class I + class II type 1 + type 2 / class I + class II
Maximum continuous operating voltage (a.c.) (UC) 255 V (50 / 60 Hz) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) (Iimp) 25 kA 25 kA
Voltage protection level (UP) ≤ 1.5 kV ≤ 1.5 kV
Max. mains-side overcurrent protection not required not required
Approvals KEMA KEMA
Type of remote signalling contact — changeover contact
For use in switchgear installations with prospective short-circuit currents
Extended technical data:
of more than 50 kArms (tested by the German VDE)
– Max. prospective short-circuit current 100 kArms (220 kApeak) 100 kArms (220 kApeak)

Accessories for DEHNvenCI
Earthing Clip for two-module Enclosures, single-phase, two-pole / three-pole / four-pole
900 419 EB 1 2 5
900 419 4013364156821 04 01 02 50 39 g
12,40 €
Earthing clip for connecting the earth terminal of e.g. two / three / four SPDs with two-module enclosure to earth, with terminal.
Type EB 1 2 5 EB DG 1000 1 3 EB 1 4 9
900 411 EB DG 1000 1 3
900 411 4013364107205 04 01 01 50 54 g
15,10 € Part No. 900 419 900 411 900 417
Dimensions 34 x 77 x 28 mm 34 x 112 x 28 mm 34 x 148 x 28 mm
900 417 EB 1 4 9
Terminal up to 25 mm 2 up to 25 mm 2 up to 25 mm 2
900 417 4013364120419 04 01 01 50 66 g
18,40 €
26 You will find detailed product information on our website Valid as of August 1, 2020