Brochure/Catalogue

VARITECTOR SPC
transfer the alert function to a 2-pole
screw/plug-in connection in the bases
and to the VSPC CONTROL UNIT.
VSPC 1CL
The VSPC 1CL is a two-stage
protective combination with a gas
discharge tube and a suppressor diode
located between the current paths.
This VSPC 1CL limits the surge voltage
within one analogue signal circuit
(such as for current loops). This
pluggable component can be inserted
into the base (VSPC BASE 1CL).
The base (VSPC BASE FG 1CL) is used
when working with signal circuits
which are not earthed.
Monitoring function
The VSPC 1CL R products feature
monitor and alert functions. All
channels remain despite the alert
function. The special VSPC BASE 1CL
R and VSPC BASE 1CL FG R bases
transfer the alert function to a 2-pole
screw/plug-in connection in the bases
and to the VSPC CONTROL UNIT.
VSPC 4SL
The VSPC 4SL is a two-stage
protective combination with a gas
discharge tube and a suppressor diode
from the current path to the PE. This
VSPC 4SL limits the surge voltage
within four binary signal circuits
(such as for alert contacts). This
pluggable component can be inserted
into the base (VSPC BASE 4SL).
The base (VSPC BASE FG 4CL) is used
when working with signal circuits
which are not earthed.
Monitoring function
The VSPC 4SL R products feature
monitor and alert functions. Even
with the alert function, there are still
channels available for the four binary
signal circuits in a single housing.
The special VSPC BASE 4SL R base
transfers the alert function to a 2-pole
screw/plug-in connection in the base
and to the VSPC CONTROL UNIT.
VSPC 2SL
The VSPC 2SL is a two-stage
protective combination with a gas
discharge tube and a suppressor diode
from the current path to the PE. This
VSPC 2SL limits the surge voltage
within two binary signal circuits
(such as for alert contacts). This
pluggable component can be inserted
into the base (VSPC BASE 2SL).
The base (VSPC BASE 2CL FG) is used
when working with signal circuits
which are not earthed.
Monitoring function
The VSPC 2SL R products feature
monitor and alert functions. Even
with the alert function, there are still
channels available for the two binary
signal circuits in a single housing.
The special VSPC BASE 2SL R base
transfers the alert function to a 2-pole
screw/plug-in connection in the base
and to the VSPC CONTROL UNIT.
VSPC 3/4WIRE
The VSPC 3/4WIRE is a two-stage
protective combination with a gas
discharge tube and a suppressor diode
from the current path to the GND. This
VSPC 3/4WIRE limits the surge voltage
within four temperature-measurement
circuits (such as for DMS or
PT100/100 sensors). For non-earthed
measurement circuits, we recommend
using the base (VSPC BASE FG 4CL).
VSPC GDT
VSPC MOV 2CH , VSPC TAZ 2CH
and VSPC GDT 2CH
Four cables can be protected with
the 2CH modules. By wiring the
connections differently, either two no-
voltage signal lines or four binary signal
lines can be protected. Two three-pole
gas discharge tubes (GDTs) are used
for the VSPC GDT 2CH. This universal
protective circuitry limits the voltage
between the signal lines and also
between each signal line and the PE.
B
B.112028840000
Lightning and surge protection for control and instrumentation signals