Article number 90078

Overvoltage protection modules for effective protection against power surges for All-IP and traditional telecommunications connections.


  • Perfectly secured telecommunications infrastructure
  • Plug and play – commissioning made as quick and easy as possible
  • Full performance – bandwidths guaranteed
  • No productivity hits when Internet access fails
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Use the modules in the SG series to can protect your router or a remote end device on your ITC infrastructure against power surges from the communications network. The SG-100 is the best choice for use on ADSL connections with splitters, ISDN or remote exchange line connections, remote analogue extensions, remote UP0 extensions or analogue door terminals.


The SG-200 is designed for use on All-IP connections such as VDSL or ADSL without splitters.


Features & technical data

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Accessory Features

  • VDSL connections
  • Suitable for VDSL 100
  • ADSL connections without splitters

Please note: information depending on the configuration level of the system. For detailed information please refer to the datasheet. Subject to modification.

Technical Highlights
Dimensions Height (mm) 142 / Width (mm) 81 / Depth (mm) 27
Casing material plastic
Weight (g) 111
Cut-off frequency, core-core (100 Ω) (fG) minimum 35 / maximum 80
highest continuous voltage (UN), (V) AC 28
relative humidity (%, non-condensing) minimum 5 / maximum 95
Serial impedance per core (0 to 30 MHz) Tolerance (negative deviation) 20 / Tolerance (positive deviation) 20 / capacitive 100
Delivery scope
  • SG-100 or SG-200
  • RJ45 connecting cable
  • Mounting hardware
  • Installation Guidelines

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Datasheet download

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