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Data Center
Surge protection for data centres

Surge protection concept

Internal lightning protection measures offer comprehensive protection of the electrical and electronic systems during lightning strikes and switching operations.
The lightning equipotential bonding is designed for all conductive systems running from the outside into the building.

3 stages for full surge protection

An effective surge protection concept has three protection stages. Stage by stage, the penetrating energy is broken down to a safe degree, so that terminal equipment is secure.

The best protective effect is achieved when all protection stages are optimally harmonised. Crucial here is that the arresters of the individual stages are energy-coordinated as per DIN VDE 0100-534.

Stage 1

Type 1 lightning current or combined arrester
at the point where conductors enter the building.

Stage 2

Type 2 surge arrester
in the sub-distribution board

Stage 3

Type 3 surge arrester
directly on the terminal device or socket outlet
DEHN 3-Stufen Schutzkonzept

Product recommendation

Surge protection for data centres

DEHN protects data centres from surges 1 - Niederspannungsanlage 2 - Container mit Batterienotstromversorgung 3 - Dieselgenerator zur Notstromversorgung 4 - Serverraum mit Stromschiene 5 - Serverraum mit separater Unterverteilung 6 - Dachaufbauten 7 - PV-Anlage 8 - Sicherheitskameras 9 - Brandmeldeanlage 10 – Sicherheitszentrale, Office

1 – Low-voltage switchgear assembly

DEHNvenCI

Spark-gap-based combined arrester with integrated lightning current arrester backup fuse.

BLITZDUCTORconnect

Space-saving, modular combined arrester with a width of 6 mm and push-in connection technology with status indication for the protection of 2 single lines with a common reference potential and unbalanced interfaces. With signal disconnection for maintenance purposes.

DEHNrecord SD

Multifunctional measuring equipment based on edge computing

2 – Container with emergency battery power supply

DEHNguard modular

Surge arrester with Advanced Circuit Interruption (ACI) for TN-S systems.

BLITZDUCTORconnect

Universal lightning current and surge arrester for protecting measuring and control circuits, bus and telecommunication systems.

3 – Diesel generator for emergency power supply

DEHNguard modular

Surge arrester with Advanced Circuit Interruption (ACI) for TN-S systems.

DEHNpatch

Arrester for data networks and Ethernet applications.

4 – Server room with busbar

DEHNguard modular

Pluggable surge arrester with Advanced Circuit Interruption (ACI) for TN-S systems.

BLITZDUCTORconnect

Universal lightning current and surge arrester for protecting measuring and control circuits, bus and telecommunication systems.

5 – Server room with separate sub-distribution board

DEHNguard

For the protecting the power supply in sub-distribution boards.

BUStector

Surge arrester with KNX bus terminal design, adapted to the immunity of KNX / EIB systems. EIBA-certified.

DEHNcord

Compact three-phase arrester for TT and TN-S systems.

6 – Roof-mounted structures

DEHNguard modular

Surge arrester with Advanced Circuit Interruption (ACI) for TN-S systems.

BLITZDUCTORconnect

Universal lightning current and surge arrester for protecting measuring and control circuits, bus and telecommunication systems.

7 – PV system

DEHNcube

Surge arrester with IP65 degree of protection and three-step DC switching device for PV inverters for protecting one MPP input.

8 – Safety cameras

DEHNpatch outdoor

Surge arrester for GBit Ethernet applications, power over Ethernet (IEEE 802.3-compliant to PoE++ / 4PPoE) in structured cabling to class E indoors and outdoors. In the IP66 enclosure for protection against the ingress of dust and water.

9 – Fire alarm system

DEHNguard modular

Surge arrester for TN-S systems.

DEHNrail modular

Two-pole surge arrester consisting of a base part and plug-in protection module.

BLITZDUCTORconnect

Universal lightning current and surge arrester for protecting measuring and control circuits, bus and telecommunication systems.

10 – Security centre / offices

DEHNrail modular

Two-pole surge arrester consisting of a base part and plug-in protection module.

DEHNflex M

Surge arrester for single-phase 230 V TT and TN systems for all installation systems of terminal equipment; compact dimensions.

DEHNpatch

Universal arrester for Industrial Ethernet, Power over Ethernet (IEEE 802.3-compliant to PoE++ / 4PPoE) in structured cabling as per Cat. 6 and class EA up to 500 MHz.

BLITZDUCTORconnect

Universal lightning current and surge arrester for protecting measuring and control circuits, bus and telecommunication systems.

DEHNselect – Product selection made easy

Which surge protection for which interface?

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Topic data centre
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