Brochure/Catalogue

Installation advice for instrumentation and control engineering
Surge protection for data lines, RS485 or RS422
The VSPC RS485 plug-in surge protector is used to protect
an RS485 data line or two RS422 data lines.
The unprotected side points in the direction where the pulse
or interference is expected. The connecting cable’s shield
is connected to terminal 3 e. g. the Weidmüller clamping
bracket (KLBÜ) can be used.
The earthed DIN rail can then pick up the pulse and
discharge it to the earth.
PE
PROTECTED
UNPROTECTED
8
10
12
2 4
6
1
3
5
7
9
11
VSPC 3/4WIRE
24 V DC
8924550000
U:28 V DC
C
I:0,45 A
N
C1 1 kA 8/20<
IP 20
U800 V
P
≤
DI DE RE/
RO
RS 485
DI DE RE/ RO
RS 485
DI DE RE/
RO
RS 485
DI DE RE/RO
RS 485
B
B.130 2028840000
Lightning and surge protection for control and instrumentation signals