Brochure/Catalogue

B
B.148 2028840000
Lightning and surge protection for control and instrumentation signals
VSPC 3/4 SL WIRE EX - protection for 3/4-wire signals in
intrinsically safe areas
Complete module, indirect earthing
protected
unprotected
1
5
2
6
3
4
91
0
7
11
8
12
GND
GND
TS
Dielectric strength at FG against PE ≥ 500 V
Volume resistance 0.20
Ω
Overload - failure mode Modus 2
Requirements category acc. to IEC 61643-21 C1, C2, C3, D1
Surge current-carrying capacity C1 < 1 kA 8/20 μs
Surge current-carrying capacity C2 5 kA 8/20 μs
Surge current-carrying capacity C3 100 A 10/1000 μs
Surge current-carrying capacity D1 2.5 kA 10/350 μs
Discharge current I
n
(8/20 µs) wire-wire/wire-PE/GND-PE 2.5 kA / 2.5 kA / 2.5 kA
Discharge I
max
(8/20 μs) wire-wire/wire-PE/GND-PE 10 kA / 10 kA / 10 kA
Lightning test I
imp
(10/350 µs) wire-wire/wire-PE/GND-PE 2.5 kA / 2.5 kA / 2.5 kA
Type of connection Pluggable in VSPC BASE
Storage temperature -40 °C...80 °C
Ambient temperature (operational) -40 °C...70 °C
Protection degree IP20
UL 94 flammability rating V-0
Temperature class T6/85 °C (-40 °C ... +60°C) li 250 mA
Temperature class T5/100°C (-40 ° C ... +75°C) li 250 mA
Temperature class T4/135°C (-40°C ... +85°C) li 350 mA
Failure probability
λges
MTTF
SIL in compliance with IEC 61508
Approvals
Approvals CE; CSAEX; EAC; GOSTEX; IECEXDEK; KEMAATEX; TUEV
Standards IEC 61643-21, IEC 62305, DIN EN 60079-0.2009, DIN EN
60079-11:2007, DIN EN 60079-26:2007, DIN EN 61241-
11:2006
ATEX - dust labelling II 1 D Ex ia IIIC T135 °C …T85 °C Da
ATEX - gas labelling II 1 G Ex ia IIC T4… T6 Ga
IECEx - dust labelling II 1 D Ex ia IIIC T135 °C …T85 °C Da
IECEx - gas labelling II 1 G Ex ia IIC T4… T6 Ga
Note
Dimensions Dimensions
Height x width x depth mm 90 / 17.8 / 69
The associated VSPC base element should be ordered with this. The dimen-
sion information provided refers to the complete module.
Technical data
• Protection of measuring bridge signals in zones 0, 1 and 2
• Pluggable arrester (impedance-neutral plugging/unplugging without
interruption)
• Can be tested with the V-TEST testing device
• Version with floating-earth PE connection for avoiding voltage
potential differences
• Can be used in accordance with installation standard IEC 62305 and
inATEXapplications
• Tested in accordance with IEC/EN 61643-21: D1, C1, C2, C3
• Integrated PE foot, safely discharges up to 20kA (8/20 μs) and
2.5kA (10/350 μs) to PE
Base elements / base to arresters Ordering data for base
Description Type Qty. Order No.
EX base element, indirect earthing / floating earth FG VSPC BASE 4SL FG EX 1 8951840000
Note
Technical data can be found at the end of VARITECTOR SPC EX.
VARITECTOR SPC EX