2-pair DIN rail plug-in Data surge protector

DLA2-24D3
DLA2-24D3
Part Number: 640311
  • Din rail plug-in surge protector
  • 2-pair
  • Un: 24 V
  • Shield wire protection
  • 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.


Network 4-20mA
Nominal line voltage Un 24 V
Max. DC operating voltage Uc 28 V
Max. frequency f max. > 3 MHz
Insertion loss < 1 dB
Max. discharge current Imax 20 kA
Line inductance No
Protection level Up 40 V
Max. capacitance C < 50 pF
Impulse current Iimp 5 kA
SPD configuration 2-pair + 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-24D3
Certification UL listed / EAC