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20kA surge protector for data line

Item No: FS-DN-05-RS485-3G
- Din rail 20kA surge protector for data lines, are applied to control signal double wire circuit in LPZ0B to LPZ2, e.g. 4~20mA circuit, RS485 circuit, RS422 circuit, gas detector, car-park system, CCTV remote monitor, remote control circuits.
- Common and difference surge protection mode, excellent performance.
- The pluggable module allows a fast replacement in case of fail.
- The grounding is realized through an earthing-clip on the DIN-Rail and / or earthing – clamp.
- No limiting in operating current due to parallel connecting method.
- Mounting on 35mm Rail, small space.

Product Description

1.Dimension and circuit diagram of DIN rail surge protector for data line

2.Electrical parameters of DIN rail surge protector for data line

Model. No.





twisted pair + shield

Nominal line voltage (Un)

5 V

Max line voltage

8 V

Nominal Discharge Current (8/20μs,KA) In 10 times

10 kA

Total Max. Discharge Current (8/20μs,KA) Imax 1 time

20 kA

Impulse current (limp) (10/350us KA) impulse 2 times

5 kA

Nominal Current (A) IL


Breakdown Voltage


Protection level (Up) at 1kV/uS


Series impedance per line (Ohm)

0 Ohm

Insertion loss at 10MHz (dB)


Degree of protection


Mounting on

35 mm DIN-rail

Enclosure Material

UL94 V0

Environment Temperature (℃)

- 40~+80

3.Installation of DIN rail surge protector for data line