DTB 4/100 M 5cat

These surge protection devices intended for computer networks are specially designed for securing a faultless data transfer within computer networks category 5. They protect input electronic circuits of network cards against damage caused by surge effects in the Lightning Protection Zones Concept at the boundaries of LPZ 0A(B) -1 and higher according to EN 62305. It is recommended to use these protection devices at the input of protected equipment.


DTB*/100M 5cat is suitable for mounting on a wall. DTB 2/100M 5cat protects two pairs and DTB 4/100M 5cat protects four pairs of conductors.

Dimension drawing
Dimension drawing
Number of protected pairs 4
Input/output RJ45/RJ45
Nominal voltage UN 6 V
Maximum continuous operating voltage UC 7,2 V
Rated load current IL 300 mA
C2 Max. discharge current (8/20) Imax 2 kA
C2 Nominal discharge current ln (8/20) In 1 kA
C3 Voltage protection level at 1 kV/µS UP < 10 V
Frequency handling line-line fg 100 MHz
Max. attenuation < 0,4 dB (at 100 MHz)
Near-end crosstalk > 40 dB (at 100 MHz)
Return loss < 14 dB (at 100 MHz)
Series impedance per line R 1,5 Ω
Characteristic impedance 100 Ω
Response time tA < 25 ns
Parasitic capacitance C < 42 pF
Category tested acc. to IEC 61643:21-2000 A2, B2, C2, C3, D1
Article number 45 109