Type 1 + Type 2 Combined Lightning Current and Surge Arresters

Coordinated Type 1 Lightning Current Arresters

Spark-gap-based type 1 + type 2 combined arresters- DEHNventil, DEHNvenCI, DEHNshield, DEHNcombo - combine lightning equipotential bonding and protection of terminal equipment in a single arrester.

 Type 1 lightning current arresters ensure lightning equipotential bonding in electrical installations and allow a compact configuration of low-voltage main distribution boards.

Accessory for Type 1 Arresters

N-PE Lightning Current Arresters

Type 2 Surge Arresters

Receiver modules for optical transmission for selective operating state indication / centralised fault indication of three coordinated DEHNbloc Maxi S / DEHNgap Maxi S lightning current arresters.

Spark-gap-based type 1 N-PE lightning current arresters of type DEHNgap are installed in “3+1” or “1+1“ circuits of TT or TN systems between neutral conductor N and protective conductor PE.

Type 2 DEHNguard S / M ...CI / SCI surge arresters are available in different types and voltages and are ideally suited for a.c., d.c. and PV applications.

Type 3 Surge Arresters

International

General accessories

Type 3 arresters are typically used for protecting terminal equipment. Different types of enclosures allow easy installation close to terminal equipment.

DEHN provides specialized solutions to fulfil the regional different demands (e.g. diverse voltage levels, earthing conditions, standards) of many Power Supply Systems and markets worldwide.

Adequate accessories such as terminals, insulating enclosures or busbars make it easier to install and monitor DEHN surge protective devices in many applications.

Measuring and test equipment

Isolating spark gaps

Voltage Controlled Short-Circuiting Device

Monitoring devices for potential-free registration of the discharge currents of protective devices and for testing the sparkover voltage of surge arresters.

Isolating spark gaps for aboveground and underground installation are used to indirectly earth and connect functionally isolated parts of installations under lightning conditions.

Voltage Controlled Short-Circuiting Device for protection in case of transient, temporary and long-duration overvoltages caused by external voltages from various sources of interference (e.g. high-voltage systems, traction power supply systems, low-voltage systems, lightning interference).

SDS

Medium-voltage arrester

The function of voltage-limiting devices in railway systems is to permanently connect parts in the overhead contact line and pantograph zone to the return circuit as soon as the sparkover voltage is exceeded.

Medium-voltage arrester for protecting transformers, switchgear installations and transmission lines against surges. Directly mounted on the mast, point of transition between the overhead line and the cable or transformer

Pluggable DIN Rail Mounted SPDs

Terminal block with integrated surge protection

The universal and pluggable DIN rail mounted arresters of the BLITZDUCTOR SP/XT/XTU series protect measuring and control circuits, bus systems and telecommunication systems.

The space-saving and function-optimised DEHNconnect SD2 terminal blocks with integrated surge protection protect measuring and control circuits and bus systems.

The application-optimised BLITZDUCTOR VT surge protective devices are ideally suited for process and automation technology.

SPDs for LSA Technology

SPDs for field devices

SPDs for telecommunication and data networks

The DEHNrapid series for LSA technology is a flexibly combinable system of lightning current and surge arresters for telecommunication systems and measuring and control applications.

Surge arresters of the DEHNpipe series provide effective protection for field devices, also in hazardous areas.

The surge arresters of the DEHNpatch and NET Protector families protect Ethernet, ISDN and DSL interfaces and can be flexibly installed / retrofitted on terminal equipment or in 19" distribution cabinets.

SPDs for building systems

SPDs for Coaxial Connection

SPDs for SUB-D Connection

Arresters for building systems are surge protective devices for telecommunication interfaces and bus systems for building automation whicg can be easily installed and retrofitted.

The arresters of the DEHNgate and UGKF series provide protection for coaxial systems such as satellite systems, modem technology, video and transmission systems and large transmitters and receivers.

The FS and USD arresters with SUB-D connection are designed for installation at terminal equipment and are ideally suited for protecting V-24, RS485/422 and Profibus-DP interfaces.

Shield connection systems and enclosures

Measuring and test devices

Lightning-current-tested shield terminals with accessories for lightning equipotential bonding of cable shields and aluminium enclosures for DIN rail mounted devices.

The condition monitoring system with LifeCheck^® sensor is a powerful monitoring system which already detects pre-damaged arresters and indicates imminent failure. The associated monitoring devices are available as stationary units or flexible hand-held devices.