Brochure/Catalogue

B
B.96 2028840000
Lightning and surge protection for control and instrumentation signals
VSSC 4 CL and CL FG - protection for current loops
UNPROTECTED PROTECTED
1
TS
2
3
4
UNPROTECTED PROTECTED
1
TS
2
3
4
Rated current I
N
500 mA
Volume resistance 1.8
Ω 10 %
Overload - failure mode Modus 2
Requirements category acc. to IEC 61643-21 C2, C3, D1
Standards IEC 61643-21
Surge current-carrying capacity C1
Surge current-carrying capacity C2 2.5 kA 8/20 µs 5 kV 1.2/50 µs
Surge current-carrying capacity C3 50 A 10/1000 μs
Surge current-carrying capacity D1 0.5 kA 10/350 μs
Discharge current I
n
(8/20 µs) wire-wire/wire-PE/GND-PE 2.5 kA / 2.5 kA
Discharge I
max
(8/20 μs) wire-wire/wire-PE/GND-PE 5 kA / 5 kA
Lightning test I
imp
(10/350 µs) wire-wire/wire-PE/GND-PE / 0.5 kA
Storage temperature -40 °C...80 °C
Ambient temperature (operational) -40 °C...70 °C
Protection degree IP20
UL 94 flammability rating V-0
Connection data
Type of connection Screw connection, Torx
®
T15, Slotted 0.8 x 4
Tightening torque 0.5 Nm
Wire connection cross section, finely stranded, max. 4 mm²
Wire connection cross-section, finely stranded, min. 0.5 mm²
Wire cross-section, solid, max. 6 mm²
Wire cross-section, solid, min. 0.5 mm²
Wire cross-section, stranded, max. 4 mm²
Wire cross-section, stranded, min. 0.5 mm²
Stripping length 10 mm
Mounting rail TS 35
Failure probability
λges 19
MTTF 6008
SIL in compliance with IEC 61508 2
Approvals
Approvals CE; CSAEX; EAC; GOSTEX; OEVE; TUEV; UL
Standards IEC 61643-21
0
0.2
0.4
0.6
0.8
1
Ambient temperature T [°C]
Load current I [A]
-40 0 15 42.5 70
0.4
Note
Dimensions Dimensions
Height x width x depth mm 76 / 6.2 / 58.5
Technical data
• Two-stage surge protection with screw connection for measurement
and control signals
• Surge protection in terminal block design
• Modular width of only 6.2mm
• Space-saving design: 1 analogue signal
• Torx
®
slotted screw connection
• Can be used in compliance with installation standard IEC 62305
• Integrated PE foot, safely discharges up to 20kA (8/20 μs) and
2.5kA (10/350 μs) to PE
VARITECTOR SSC 4AN