Brochure/Catalogue

VARITECTOR SPC EX
Products for intrinsically safe
circuits
VSPC 1CL 12 V ATEX
and VSPC 1CL 24 V ATEX
This VSPC surge protector is used to
protect an intrinsically safe current
loop.
24 V
VSPC 1 CL PW
VSPC EX 1 CL 24 V/Power ATEX
This VARITECTOR SPC surge protector
protects an analogue signal and has an
intrinsically safe power supply which
is protected by a Type III end-device
protection mechanism.
All in one product it is suitable for an
intrinsically safe sensor, which also
requires an intrinsically safe power
supply.
VSPC EX 2SL 12 V DC ATEX
VSPC EX 2SL 12 V AC ATEX
VSPC EX 2SL 24 V DC ATEX
These VSPC EX surge protection
modules are used for protecting two
intrinsically safe binary signals.
VSPC 3/4 wire
VSPC EX 3/4 wire 5 V ATEX
This VSPC EX surge protector is
suitable for 3- or 4-wire measurement
systems with signals going in and out
of the intrinsically safe zone.
VSPC EX 1CL 5 V ATEX
This VSPC EX surge protector is
suitable for temperature signals which
goes in and out of the intrinsically safe
zone.
VSPC EX 1CL 12 V ATEX (Namur)
This VSPC EX surge protector is used
to protect a Namur sensor signal in an
intrinsically safe zone.
Colour coding
The pluggable components transfer
their coding to the BASE when they are
plugged in for the rst time.
The voltage level is also marked with
coloured Dekax on the VSPC EX
plug section. This gives you a better
overview within the electrical cabinet.
Voltage level Colour
≤ 12 V green
24 V Binary blue
24 V Analogue yellow
Special function white
Testing option
Because the modules are pluggable, it
is possible to test the VSPC EX using
the V-TEST testing device. The user
inserts the VSPC EX into the testing
device for testing. The result is then
shown on the display.
Periodic inspections
Monitoring
IEC 62305-3 requires testing and
maintenance for lightning protection
systems.
This includes the testing of the
arresters used in the system.
Class of
protection
Interval for
complete testing
Interval for
visual inspection
I 2 years 1 year
II 4 years 2 years
III/IV 6 years 3 years
Caution! These periodic inspections
may be extended with stricter
requirements pertaining to special
applications or regions.
Markers
The VSPC BASE lower section can be
labelled with Dekax 5 markers.
The VSPC pluggable modules are
colour coded with Dekax 5 according
to their nominal voltage.
Installation
The VSPC EX series is used to protect
signal circuits. In order to achieve
a complete protective strategy for
the facility, the power feed must be
protected with Type II surge protection
(for example, by using the VPU II series).
For existing lightning protection
facilities, Type I protection must
be used (for example, by using the
VPU I series).
When there is no lightning protection
system, the Type II protection is
sufcient (such as the VPU II).
B
B.1352028840000
Lightning and surge protection for control and instrumentation signals