Overvoltage protection module for effective protection of 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

Your advantages in detail

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.

Note: 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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  • ADSL connection with splitter
  • ISDN exchange line connection
  • Analogue exchange line connection
  • Remote analogue or UP0 extension or analogue door terminal
  • ADSL and VDSL connections with bandwidth reduced, but above minimum guaranteed access line speed



Usable in compliance with country-specific requirements

across europe

Ambient temperature in operation | in storage

-5 to +40 ºC | -40 to +70 °C

Relative humidity in operation

5 % to 95 %, non-condensing

Type of installation

wall mounting

Protection class


Casing material

plastic (fire-proof), black

Dimensions (w x h x d)

142 mm x 81 mm x 27 mm


106 g



Surge arrester class

Type 2P1

Rated voltage (UN)

70 V AC / 100 V DC

Highest continuous voltage (UC)

85 V AC / 120 V DC

Rated current at 45 °C (IL)

<=200 mA

C2 rated discharge surge current 5 kV (8/20 μs) (In)

5 kA

C2 rated discharge surge current 5 kV (8/20 μs) per core (In)

<=2.5 kA (operation with wire terminal)
<=2 kA (operation via RJ45 socket)

Protective level, core-core at C2 (UP)

<=130 V

Protective level, core-PG at C2 (UP)

<=230 V

Serial impedance per core (0 to 30 MHz)

2,4 Ω ±20 %

Cut-off frequency, core-core (100 Ω) (fG)

0 to 100 MHz

Capacity, core-core (C)

<=10 pF

Capacity, core-PG (C)

<=10 pF

Pulse reset time

<=160 ms

Overload failure mode

Mode 3 (disconnect line)

Delivery Scope

  • Surge protection module
  • RJ-45 connecting cable
  • Mounting hardware
  • Installation guideline

Top Sellers

Sales Configurator (SC)

- the easy way to the right system

Customer requirements for communication solutions are constantly increasing and with them the complexity and scalability of ITC systems. Project planning therefore takes up more and more time. Here, the free Sales Configurator offers a simple and fast solution. It gives you the opportunity to efficiently plan communication solutions and create project planning proposals.

Sales Configurator (SC)