Data and telecommunication line surge protection unit DLAH-06D3

for telecom applicationsplug-ingas discharge tube

Overview
The CITEL DLAH-06D3 is a 1-pair plug-in surge protector designed to safeguard data and telecom interfaces (RS422/RS485 and similar) from lightning-induced and transient overvoltages. Intended for symmetrical 35 mm DIN-rail mounting, the device features a removable protection module for fast, on-site maintenance and replacement. It is suitable for a wide range of transmission lines and supports high data rates depending on the model.

Main features

• Pluggable surge protection for DIN mounting
• Coordination inductor
• Up to 2.4 A line current
• Remote supply version available
• Compatible with telephone and data lines (RS422, RS485)
• Shield conductor protection
• IEC 61643-21 compliance
• UL497B listed

Electrical Properties (excerpt)
Network: RS422, RS485
Nominal line voltage (Un): 6 V
Max. DC operating voltage (Uc): 8 Vdc
Cut-off frequency (-3 dB, 100 ohm system): f max. > 1.8 MHz
Cut-off frequency (-1 dB, 100 ohm system): f max. > 1 MHz
Max. load current @25°C (IL): 2.4 A
Max. discharge current Imax (8/20 µs by pole): 20 kA
Nominal discharge current In L/PE (8/20 µs x10, C2): 5 kA
Line inductance (±10%): 10 µH
Protection level Up (C3 10/1000 µs) Line/Line, Line/Earth: 20 V
Impulse current Iimp (D1 10/350 µs) X-C (Line/Earth): 5 kA

Mechanical Properties (excerpt)
Network type: Data communication
Technology: GDT + TVS diode
SPD configuration: 1-pair + shielded
Connection: Screw terminal, cross section 0.4–1.5 mm²
Format: Plug-in DIN module
Mounting: Symmetrical 35 mm DIN rail (EN 60715)
Housing material: Thermoplastic UL94 V-0
Operating temperature (Tu): -40 / +85 °C
Protection rating: IP20
Failsafe mode: Short-circuit
Disconnection indicator: Transmission interrupt (default mode 2)
Spare module(s): DLAHM-06D3

Norms & Certification
Standards compliance: IEC 61643-21 / EN 61643-21 / UL497B
Certification: UL Listed

Schematics / Diagrams
Product includes schematic and diagram images for wiring and mounting; refer to the technical documentation for installation details.

Technical specifications

• Model: DLAH-06D3
• Manufacturer: CITEL
• Part Number: 641001
• Network compatibility: RS422, RS485
• Nominal line voltage Un: 6 V
• Max DC operating voltage Uc: 8 Vdc
• Max load current @25°C: 2.4 A
• Max discharge current Imax (8/20 µs) per pole: 20 kA
• Nominal discharge current In L/PE (8/20 µs x10): 5 kA
• Line/Line nominal discharge current (C2) In L/L: 5 kA
• Impulse current Iimp (10/350 µs) X-C: 5 kA
• Line inductance: 10 µH
• Protection level Up (C3 10/1000 µs): 20 V (Line/Line and Line/Earth)
• Technology: GDT + TVS diode
• SPD configuration: 1-pair + shielded
• Connection: Screw terminal 0.4–1.5 mm²
• Format: Plug-in DIN box
• Mounting: Symmetrical 35 mm DIN rail (EN 60715)
• Housing: Thermoplastic UL94 V-0
• Operating temperature range: -40 to +85 °C
• Protection rating: IP20
• Failsafe mode: Short-circuit
• Disconnection indicator: Transmission interrupt (default mode 2)
• Spare module: DLAHM-06D3
• Standards: IEC 61643-21 / EN 61643-21 / UL497B
• Certification: UL Listed