Brochure/Catalogue
B
B.102 2028840000
Lightning and surge protection
for control and instrumentation signals
VSSC 4 GDT - protection with sparkover gap (GDT)
VSSC4 GDT
1
24
3
TS
Rated current I
N
20 A
Volume resistance < 0.1
Ω
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 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 / 5 kA
Discharge I
max
(8/20 μs) wire-wire/wire-PE/GND-PE / 20 kA
Lightning test I
imp
(10/350 µs) wire-wire/wire-PE/GND-PE / 2.5 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 10
MTTF 11416
SIL in compliance with IEC 61508 3
Approvals
Approvals CE; CSAEX; EAC; GOSTEX; TUEV
Standards IEC 61643-21
0
10
20
30
40
50
Ambient temperature T [°C]
Load current I [A]
-40 0 55 70
24
Note
Dimensions Dimensions
Height x width x depth mm 76 / 12.2 / 58.5
Technical data
• One-stage surge protection with screw connection for measurement
and control signals
• Surge protection in terminal block design
• Modular width of only 12.4mm
• Space-saving design for one signal
• Torx
®
slotted screw connection
• Can be used in compliance with installation standard IEC 62305
• Tested in accordance with IEC 61643-21: C1, C2, C3
• Integrated PE foot, safely discharges up to 20kA (8/20 μs) and
2.5kA (10/350 μs) to PE
VARITECTOR SSC 4AN