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Overvoltage Protection Citel DLA2-24D3

  • Order number
    M81125.7 / M50010M
  • Availability

    Usually on stock
2-pair DIN rail plug-in Data surge protector

Description

  • 2-pair DIN rail plug-in Data surge protector
  • Standards compliance: IEC 61643-21 / EN 61643-21
  • Technology: GDT + Clamping diode
  • Network: 4 … 20 mA
  • Max. DC operating voltage: 28 VDC
  • Max. discharge current : 5 kA

DLA protects information and communication technology, telecommunication equipment and data technology systems from lightning effects and surges.

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.

Specifications

Overvoltage Protection Citel DLA2-24D3
General Information
Order Number M81125.7 / M50010M
Specifications
Nominal line voltage (Un) 24 V
Max. DC operating voltage (Uc) 28 V DC
Max. discharge current (Imax) 20 kA
Max. withstand @ 8/20 µs by pole
Protection level (Up) 40 V
Following the test category C3 (IEC61643-21) – Line/Line
Nominal discharge current (In) 5 kA
C2 Category
Operating and storage temperature -40 … +85 °C
Protection rating IP 20
Manufacturer Citel

Dimensional drawing

Instructions

Installation / Operating instructions
This overvoltage protector is used for the protection of data and signal lines.
The protective device must be connected as closely as possible to the equipment to be protected.
Protected and unprotected lines must not be laid together.
Please note that the device must be installed upside down:
Wiring Diagram
Citel Orientation
Maintenance
Merely check this overvoltage protector for correct operation after the period when thunderstorms are most frequent.
Apart from that this product requires no maintenance.
Trouble-shooting
As and when required, this overvoltage protective device can be checked by measuring insulation and continuity.
For testing purposes
The following resistances must be above 1 MΩ:
1 to 2
1 to PE (6)
2 to PE (6)

Furthermore, the lines from the unprotected side to the protected side must be below 5 Ω:
1 to 1p
2 to 2p