Surge protection - Functional building

Surge protective devices protect electric / electronic systems and devices from damage caused by excessively high voltages. This dangerous interference energy is gradually broken down to a level corresponding to the rated impulse voltage.

Please note that the relevant arresters have to be energy-coordinated to ensure interaction of the individual protection stages.

Product recommendations

Überspannungsschutz für Zweckgebäude Sicherheitstechnik Sicherheitstechnik Energieversorgung Daten- und Telekommunikationstechnik Energieversorgung Energieversorgung Daten- und Telekommunikationstechnik Photovoltaik LED Beleuchtung E-Mobility Heizung LED Beleuchtung Sicherheitstechnik Elektrische Jalousien

A - Power supply

Main distribution board

DEHNventil: For protecting the power supply of low-voltage consumer's installations. Multipole type 1 + type 2 spark-gap-based arrester according to EN 61643-11.

Sub-distribution board

DEHNguard ACI: For protecting the power supply in sub-distribution boards.
Type 2 surge arrester with integrated ACI switch / spark gap combination ensures safe dimensioning. Connection cross-section of just 6mm² Cu is always enough.

Protection of terminal devices

DEHNflex: The type 3 DEHNflex arrester is mounted directly at the terminal device. It is ideal for installation in cable ducts and installation boxes. Other places of installation are possible.

B - Data and telecommunication technology

LSA technology

DEHNrapid LSA: The DEHNrapid series for LSA technology (LSA-PLUS/LSA+) is a flexibly combinable system of lightning current and surge arresters for telecommunication systems and measuring and control applications.

Ethernet cabling

DEHNpatch: Universal arrester for Industrial Ethernet, Power over Ethernet (IEEE 802.3-compatible up to PoE++ / 4PPoE) and similar applications in structured cabling systems according to class E up to 250 MHz. Protection of all pairs thanks to powerful discharge tube and adapted filter matrix for each pair. Fully shielded adapter with sockets for DIN rail mounting.

KNX / EIB systems

BUStector: This type 2 surge arrester with bus terminal design is particularly adapted to the immunity of KNX / EIB systems. It can be easily inserted into the slot of KNX components.

C - Photovoltaic system

Inverter

DC side of the inverter - if the separation distance is kept

DEHNcube: The DEHNcube type 2 arrester offers comprehensive protection for a PV system – in a single enclosure. It is mounted directly upstream of the inverter. In case of a cable length of more than 10 metres between the PV system and the inverter, another arrester is required in the roof area.

Alternative 1

DEHNguard M YPV 1200: DC side of the inverter - if the separation distance is kept

Alternative 2

DEHNcombo: DC side of the inverter - if the separation distance is not kept

 

D - Electric shutters

Electric Venetian blinds

DEHNcord R: Surge arrester for electric Venetian blinds; compact dimensions.

E - Security technology

CCTV camera

DEHNpatch outdoor: Universal surge arrester for GBit Ethernet applications, Power over Ethernet (IEEE 802.3-compliant up to PoE++ / 4PPoE) and similar applications in structured cabling systems up to class E (indoor and outdoor) in an IP66 enclosure, dust and water-proof.

Safety lighting

DEHNguard SE DC 242: Single-pole DEHNguard SE DC type 2 surge arrester according to EN 61643-11, consisting of a base part and plug-in protection module. High immunity thanks to powerful DC switching device DCD which is particularly designed for use in DC circuits. For protecting DC consumer installations from surges, e.g. safety lighting systems.

Fire alarm system

Power supply

DEHNrail: Two-pole type 3 surge arrester for industrial electronics equipment.
For protecting the power supply circuit of industrial electronics equipment (e.g. fire alarm system) against transient surges in switchgear cabinets.

Fire alarm system

Input and output of data technology

BLITZDUCTOR XT plug-in module: Space-saving combined arrester module for protecting 2 single cores sharing a common reference potential as well as unbalanced interfaces, direct or indirect shield earthing.

Fire alarm system

Input and output of data technology

BLITZDUCTOR XT base part: Space-saving combined arrester module for protecting 2 single cores sharing a common reference potential as well as unbalanced interfaces, direct or indirect shield earthing.

F - LED lights

Indoor lighting - Light strips

DEHNcord L: Three-pole surge arrester for protecting LED lights/light strips. Its extremely compact design with connecting cable also allows outdoor installation (IP 65 degree of protection), e.g. at the fuse box of LED mast lights.

Outdoor lighting - Fuse box

EK480: With integrated DEHNcord surge protective device (Part No. 900445). Can be installed in masts with an inside diameter from 89 mm.

G - E-mobility

Charging post

Power supply

DEHNshield: Type 1 + 2 spark-gap-based combined arrester. For protecting the power supply in charging posts and wall boxes. Can be used at all locations and lightning protection zones according to EN 62305-4.

Charging post

Information technology

BLITZDUCTOR XT plug-in module: Pluggable combined lightning current and surge arrester for protecting 2 pairs. For unearthed high-frequency bus systems or interfaces in charging posts for electromobility.

Charging post

Information technology

BLITZDUCTOR XT base part: Pluggable combined lightning current and surge arrester for protecting 2 pairs. For unearthed high-frequency bus systems or interfaces in electromobility charging posts.

H - Heating/air-conditioning/ventilation

Heating

Power supply

DEHNrail M 4P 255 FM: Four-pole DEHNrail modular type 3 surge arrester according to EN 61643-11, consisting of a base part and plug-in protection module.

Heating

Information technology

BLITZDUCTOR XT plug-in module: Protects the communication and measuring lines of home automation/ heating systems. The base part including plug-in module is directly mounted on the electronic component of, e.g., the heating, air-conditioning systems or heat pumps to be protected.

Heating

Information technology

BLITZDUCTOR XT base part: Protects the communication and measuring lines of home automation/ heating systems. The base part including plug-in module is directly mounted on the electronic component of, e.g., the heating, air-conditioning systems or heat pumps to be protected.

Contact

Have you got any questions? Contact us.

Technical support

Telefon: +49 9181 906 1750

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