1-pair DIN rail plug-in Data surge protector

Part Number 640151
  • High current data transmission
  • Common mode and differential mode protection
  • Data lines, including those isolated from Earth
  • Compact DIN rail enclosure, high density protection
  • Protection of shield wire
  • Plug-out with line cut-off
  • Location and test categories: D1, C2, C3
  • IEC 61643-21 compliance

DLA surge protectors are designed to protect, against surge voltages due to lightning, terminals equipment connected to industrial buses, telecom lines or datalines. These surge protectors must be installed on symmetrical DIN rail and are available for most of the transmission lines: line voltage from 6 to 170V, bitrate up to 10 Mbit/s. D3 types aim to realize fine protection and D2 types is specific for floating application. These products are 1-pair surge protectors with removable module for easy maintenance.

Floating applications, E.g: RS422
Nominal line voltage
Un 6 V
Max. DC operating voltage
Uc 8 Vdc
Max. frequency, in the channel
f max. DC bis 3 MHz
Insertion loss
< 1 dB
Max. discharge current
max. withstand @ 8/20 µs, X-C (Line/Earth)
Imax 20 kA
Protection Level
C3 category (10/1000μs), 300 applications@10 A, X-X (Line/Line)
Up 20 V
Protection level
C3 category (10/1000μs), 300 applications@10 A, X-C (Line/Earth)
Up 650 V
Impulse current
D1 category (10/350μs), 2 applications, X-C (Line/Earth)
Iimp 5 kA
Nominal Discharge Current
C2 category (8/20μs), 10 applications, X-X (Line/Line)
In 200 A
Nominal discharge current
C2 category (8/20μs), 10 applications X-C (Line/Earth)
In 5 kA
Max. Load current
IL 2,4 A
Line resistance
0 Ohm
@1MHz, X-C (Line/Earth)
C < 25 pF
Network type
Data Communication
GDT+Clamping diode
SPD configuration
Connection to Network
By screw terminal: cross section 0.5-2.5mm²
Symmetrical rail 35 mm (EN 60715)
Housing material
Thermoplastic UL94 V-0
Operating and storage temperature
Ingress Protection rating
IP20 (NEMA 2)
Failsafe mode
Disconnection indicator
Transmission interrupt - default mode 2
Spare module(s)
See diagram
0.087 kg
Standards compliance
IEC 61643-21 / EN 61643-21