DSL-FLÜ Surge protection

DSL-FLÜ Surge protection

2- or 4-wire version
RJ-45 socket and screw connection
Overvoltage coarse protection on the line side via gas discharge diodes
Frequency range 6 – 2.000kHz
Dielectric strength 6kV
Transmission ratio 1:1
Operating attenuation ≤ 0.3dB
Error attenuation ≥ 23dB
Symmetry attenuation ≥ 52dB (552kHz)
DIN-35mm top-hat rail mounting
Tested according to EN 61000-4-5:2006
Dimensions: 77 x 40 x 148 mm (LxWxH)

DSL remote line transformers are used for transmission and overvoltage protection of DSL modems.

The use of transformers specially adapted to the requirements of DSL transmission ensures galvanic isolation of the modems from the copper line, providing reliable protection up to 6 kV.

In contrast to a fuse-based system, even lower voltages below 10V are kept away from the downstream modems.

Overvoltage can be discharged to ground via a coarse protection.
The modem, as well as the transmission side can be connected either via RJ-45 or screw connection.

The DSL-FLÜ is available in two different versions:

DSL-FLÜ-02-02 for 2-wire applications with 10mH chokes

DSL-FLÜ-02-04 for 4-wire applications (now new!) with 56mH chokes for a lower signal-to-noise ratio.


Dimensions: 77 x 40 x 148 mm (LxWxH)
Top-hat rail mounting in metal housing
RoHS and WEEE: RoHS (lead free) and WEEE compliant

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