Brochure/Catalogue
VARITECTOR SPC EX
VARITECTOR SPC EX
Pluggable surge protection for
measurement and control systems
VARITECTOR SPC EX
Weidmüller’s VARITECTOR SPC EX
pluggable surge protector is
remarkable for its combination of
extremely high protective functionality
and compact dimensions. It protects
intrinsically safe measurement and
control circuits. The size is made
possible by the selection of INSTA
dimensions, with a width of 17.8 mm
(1 TE). You save time on connections
because of the screw connection and
the indirect earthing contact via the
DIN rail. The VARITECTOR SPC series
is optimally designed for compact
installations in process automation,
industrial automation and building
automation. The two-stage surge
protection terminals are equipped with
gas discharge tubes, suppressor diodes
(TVS) and decoupling components.
IEC 62305 requires that a periodic
inspection of surge protection products
be conducted. The functionality of
all VARITECTOR SPC modules can
be tested using testing equipment
(such as the V-TEST) that is available
separately.
You can get our VARITECTOR SPC
surge protection series in the nominal
voltages of 5 V, 12 V and 24 V. The
product’s voltage level is colour-coded
on the pluggable arrester.
It can be snapped on an earthed DIN
for indirect earthing. The TS 35 must
be earthed in order to ensure safe
power discharging via the terminals
of up to 20 kA (8/20 µs) and 2.5 kA
(10/350 µs). The DIN rail must be
screwed onto the earthed mounting
plate to ensure EMC.
In order to optimise the protective
function, the PE contact should be
made every 60 cm / 24 inch using
the terminal on the VARITECTOR SPC
module.
A testing device, available as a
Weidmüller accessory, allows you
to test the protective element in
compliance with the IEC 62305-3
directive. Accessories also include
the EMC SET which provides a simple
method for creating the cable shield.
Overview of model types
Surge protection consists of a separate
plug-in VARITECTOR SPC EX
and a separate base
unit VARITECTOR SPC BASE.
ATEX
T
The VSPC EX series comes in a light
blue housing and is used to protect
electronics connected to intrinsically
safe circuits. The unearthed (oating
ground - FG) VARITECTOR SPCs have
negligible internal inductance and
capacitance.
Labelling of the VSPC EX
equipment
ATEX:
For gas
T II 1 G Ex ia IIC T4 … T6 Ga or
For dust
T II 1 D Ex ia IIIC T135°C … T85°C Da
KEMA 10 ATEX 0148 X
IEC EX:
For gas
Ex ia IIC T4 ... T6 Ga
For dust
Ex ia IIIC T135 °C ... T85 °C Da
The basic health and safety functions
are fullled by compliance with:
EN 60079-0:2009,
EN 60079-11:2007,
EN 60079-26:2007 and
EN 61241-11:2006, IEC 61643-21
VARITECTOR SPC EX
B
B.134 2028840000
Lightning and surge protection
for control and instrumentation signals