1
Introduction
FL485 RS-485 surge protection devices is designed according to IEC61643-21 and GB/T
18802.21 standards. It adopts multi-level protection circuit and TDK-EPCOS high-speed
surge protective parts. It has fast response speed, low output residual voltage and low
capacitance design , transmission performance is superior. This product is suitable for
surge protection of twisted-pairs system, such as RS-485, RS-422, CAN bus, Profibus etc.
It effectively suppresses high voltage and high current pulses induced in the line and
protects the back-end equipment from lightning and industrial surge. This product is made
of aluminum alloy shielded metal casing, has good sealing performance, and has dustproof
and anti-corrosion function. It is connected in series and installed between the protected
equipment and the outer line.
Dimension
Unit:mm
Specification
Nominal operating voltage /
Un
5V
Maximum continuous operating voltage / Uc
6V
Nominal discharge current / In(8/20us)
500A(Line-line), 3000A(Line-ground)
Maximum discharge current / Imax(8/20us)
1000A(Line-line), 5000A(Line-ground)
Voltage protection level /
Up(1.2/50us)
<30V(Line-line), <600V(Line-ground)
Impulse withstand voltage (10/700us)
6000V(Line-line, Line-ground)
