DEHNbox
Universal Lightning Current / Surge Arrester
- Combined lightning current and surge arrester
- Capable of carrying lightning currents up to 10 kA (10/350 µs)
- Low voltage protection level, capable of protecting terminal equipment
- For installation in conformity with the lightning protection zone concept at the boundaries from 0A – 2 and higher Easy to use
- Suitable for wall mounting, IP 65 degree of protection
- Fast and easy installation due to spring-loaded terminals
- Easy retrofitting of surge protection
Description
The compact arresters of the DEHNbox product family are combined lightning current and surge arresters designed for protecting information, measuring and control and automation equipment and systems. With its surface-mounted plastic enclosure with integrated fixing lugs, DEHNbox is ideally suited for wall mounting and can be easily retrofitted into existing equipment and systems. The IP 65 degree of protection allows the arrester to be used in harsh environments such as in moist atmospheres. The conductors are therefore entered via easy-to-install self-sealing rubber grommets. These grommets allow easy and fast installation and prevent the ingress of moisture and dust. Both the cores and an installed line shield can be contacted by means of spring-loaded terminals without the use of screws. DEHNbox is available in two versions:
DEHNbox TC 180
The arrester is optimised for use at telecommunication connections and devices such as analogue telephones as well as ISDN and VDSL2 connections. With a cut-off frequency of 250 MHz, the arrester is also capable of transmitting high-frequency signal parts and can thus be used at high-performance signal interfaces. As an alternative, DEHNbox TC 180 can also be installed at measuring and control interfaces up to a voltage of 180 V and a maximum current of 750 mA.
DEHNbox TC 180 allows fast connection of one pair without tools and fixing of the connecting cable (integrated strain relief) on the printed circuit board by means of cable ties. The connection space in the box and the position of the terminals ensure optimal conductor routing and easy conductor connection.
DEHNbox with actiVsense technology
This arrester type does not have a specific nominal voltage and can thus be used for voltages ranging from 0 to 180 V with a superimposed signal voltage (± 5 V/50 MHz). The nominal current is limited to 100 mA which is sufficient for information technology systems. This innovative actiVsense technology allows the arrester to detect the signal voltage applied and to automatically adapt the voltage protection level to this voltage. This makes the arrester ideal for applications where changing or slowly fluctuating signal levels (≤ 400 Hz) are to be expected. In case of interference, DEHNbox arresters have an adapted voltage protection level for every signal voltage, thus providing maximum protection for the devices and system circuits connected to them. The four-pole version of DEHNbox provides protection for two different balanced interfaces, e.g. a bus interface with a system voltage of 5 V and an analogue measured value signal with a system voltage of 24 V.
The arrester is ideally suited for domestic and industrial use in information technology transmission systems such as telecommunication, bus and measuring and control systems.
DEHNbox TC 180
The arrester is optimised for use at telecommunication connections and devices such as analogue telephones as well as ISDN and VDSL2 connections. With a cut-off frequency of 250 MHz, the arrester is also capable of transmitting high-frequency signal parts and can thus be used at high-performance signal interfaces. As an alternative, DEHNbox TC 180 can also be installed at measuring and control interfaces up to a voltage of 180 V and a maximum current of 750 mA.
DEHNbox TC 180 allows fast connection of one pair without tools and fixing of the connecting cable (integrated strain relief) on the printed circuit board by means of cable ties. The connection space in the box and the position of the terminals ensure optimal conductor routing and easy conductor connection.
DEHNbox with actiVsense technology
This arrester type does not have a specific nominal voltage and can thus be used for voltages ranging from 0 to 180 V with a superimposed signal voltage (± 5 V/50 MHz). The nominal current is limited to 100 mA which is sufficient for information technology systems. This innovative actiVsense technology allows the arrester to detect the signal voltage applied and to automatically adapt the voltage protection level to this voltage. This makes the arrester ideal for applications where changing or slowly fluctuating signal levels (≤ 400 Hz) are to be expected. In case of interference, DEHNbox arresters have an adapted voltage protection level for every signal voltage, thus providing maximum protection for the devices and system circuits connected to them. The four-pole version of DEHNbox provides protection for two different balanced interfaces, e.g. a bus interface with a system voltage of 5 V and an analogue measured value signal with a system voltage of 24 V.
The arrester is ideally suited for domestic and industrial use in information technology transmission systems such as telecommunication, bus and measuring and control systems.
Detail 1
Cable entry with self-sealing rubber grommets.
Detail 2
Conductor terminals for fast connection without tools (DBX TC 180).
Detail 3
Conductor fixing by means of cable ties (DBX TC 180).
Detail 4
Available with direct or indirect shield earthing (DBX U4/U2 KT BD S 0-180).
Detail 5
Voltage protection level diagram (DBX U4/U2 KT BD S 0-180)
