2-pair DIN rail plug-in Data surge protector

DLA2-12D3
Part Number: 640211
DLA2-12D3
  • Din rail plug-in surge protector
  • 2-pair
  • Un: 12 V
  • Shield wire protection
  • Plug-out without line cut-off
  • IEC 61643-21 compliance
  • UL497A

DLA protect I&C, telecommunication equipment and data technology systems from lightning effects and surges. Designed for DIN rail mounting, these surge protectors can be used for all applications with voltages from 6 V to max. 170 V and transmission rates up to 10 Mbit/s and protect one (DLA) to two (DLA2) pairs with a plug-in protection module. The electrical circuit of the DLA consists of a combination of high-performance gas discharge tubes and fast-switching diodes for high discharge capacity and fast response behaviour. The shield connection is additionally earthed via a gas discharge tube. The earthing connection is conveniently made via the top-hat rail. When the plug-in module is unplugged, the transmission signal is not interrupted. Special versions: DLAH are protective devices for applications with higher current values, operating current for connected operating devices up to 2.4 A. DLAW is a version which interrupts the signal transmission when the protection module is pulled out. D3 types aim to realize fine protection and D2 types is specific for floating applicaiton.


Network RS232, RS485
Nominal line voltage Un 12 V
Max. DC operating voltage Uc 15 Vdc
Max. frequency f max. > 3 MHz
Max. discharge current Imax 20 kA
Line inductance No
Protection level Up 30 V
Protection level Up 20 V
SPD configuration 2-pairs+shielded
Mounting Symmetrical rail 35 mm (EN 60715)
Housing material Thermoplastic UL94 V-0
Operating and storage temperature -40/+85°C
Protection rating IP20
Failsafe mode Short-circuit
Spare module(s) DLA2M-12D3