What types of electrical cable are available and what are these used for?

Take a look at our installation materials and you will see that there are lots of different types of electrical cables. We provide information about the most common types on this page.


UTP and FTP are two types of Twisted Pair cables that are used mainly for data networking and telephony. As the name suggests, there are two conductors twisted together for a circuit. The difference between UTP and FTP is that the FTP has an additional layer of foil, which provides protection against electromagnetic interference. This extra foil layer may be around individual circuits, all of the wiring or both.

Some examples:

Name Also known as Wire pair protection Cable protection
S-STPS/FTPFoilCopper cladding

Types of electrical cable

For data networks, these twisted pair cables are often categorised according to bandwidth. For example:

  • Cat. 4: to 20 MHz
  • Cat. 5: to 100 MHz
  • Cat. 6: to 250 MHz
  • Cat. 7: to 600 MHz


A coaxial cable (also referred to as coax cable) consists of a shielded core conductor encased within a second conductor. There is little to no interference because the axes of the two conductors coincide.

Coax is used most frequently for carrying television signals.


CTMB is a cable with multiple cores (from 2 to 12) that are protected by a rubber sheath. This makes the cable moisture resistant. CTMB is used for connecting cooker rings, saunas, yard cables (between 1.5mm and 6mm), etc.


A VOB is a single electrical wire that is available in different colours. It is used for a variety of purposes. You can use a yellow-green VOB for equipotential connections. Single VOB wires are also used in fuse boxes. Preflex is required when these wires are used in a wall or concrete to protect the wires from being damaged.


A VOBst is a variant of the VOB. This electric wire is much more flexible than the VOB. The VOBst consists of a multi-stranded core of tin-plated copper.


An SVV is also called a signal cable. It is ideal for sending and receiving control signals, for example, for home automation, an intercom, videophone, etc. These are used to control stepping relays at low voltage.


VTLMB is better known as speaker cable. This cable is also suitable for the connections of small electric household appliances.


VVT is a telephony cable for indoor devices. The wires are twisted together in pairs.


XVB consists of a bundle of VOB wires that are protected by a plastic sheath. These cables are used for indoor devices.

In addition, there is the EXVB cable, which has an extra strong sheath. EXVB is the cable used to convey public electricity to your home.

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