1-pair DIN rail plug-in Data surge protector

Part Number 6419041
  • 1-pair Surge protection
  • Pluggable protection module
  • Optical fault indication
  • Indirect shield connection
  • Visual indicator in failsafe behaviour
  • Indirect earthing
  • Current circuit disconnection when module is unplugged
  • Conforms to IEC 61643-21, VDE 0845-3-1 and UL497B

The surge protection devices of the DLAWS1 series protect I&C, telecommunication and data technology systems against lightning effects and overvoltages. These surge protectors were developed for the protection of one twin wire and can be used for all applications with voltages from 6 V to max. 48 V and transmission rates of up to 10 Mbps. The electrical circuitry of the DLAS consists of a combination of high-performance gas discharge tubes and fast-switching diodes for high discharge capacity and fast response. The shield connection is additionally earthed via a gas discharge tube. Earthing is simply done via the top-hat rail. When the plug-in module is disconnected, the transmission signal is interrupted. Error signalling is via an optical display.

4-20 mA
Nominal line voltage
Un 48 V
Max. DC operating voltage
Uc 53 Vdc
Max. frequency
f max. > 3 MHz
Insertion loss
< 1 dB
Max. discharge current
max. withstand @ 8/20 µs by pole
Imax 20 kA
Line inductance
Protection mode(s)
Common/Differential mode
Protection level
Following the test category C3 (IEC61643-21) - Line/Line
Up 70 V
Impulse current
2 x 10/350µs Test - D1 Category
Iimp 5 kA
Nominal discharge current
C2 Category
In 5 kA
Line/Line Nominal discharge current
C2 Category
In L/L 5 kA
Nominal Discharge Current, X-C (Line/Earth)
8/20µs Test x 10 - C2 Category
In L/PE 5 kA
Line resistance
< 4.7 Ohm
Network type
Data Communication
Specific version with line cut-off in case of removal plug-in module
GDT+Clamping diode+PTC (thermal resistor) + Resistor
SPD configuration
Connection to Network
By screw terminal: cross section 0.5-2.5mm²
Plug-in DIN box
Symmetrical rail 35 mm (EN 60715)
Housing material
Thermoplastic UL94 V-0
Operating temperature
Tu -40/+85°C
Protection rating
Failsafe mode
Opening line - transmision cut-off - fault mode 2
With line cut-off in case of removal plug-in module
Disconnection indicator
Red light on
Spare module(s)
See diagram
Standards compliance
IEC 61643-21 / EN 61643-21 / UL497A
UL Listed