Citel DLA-06D3 SPD, 1-pair, Din rail, plug-in, 6V

Product Overview

The DLA-06D3 is a 1-pair DIN rail plug-in data surge protector designed to protect terminals and equipment connected to industrial buses, telecom lines, and data lines against lightning-induced surge voltages. This compact SPD features hybrid GDT+TVS diode technology providing both common mode and differential mode protection for RS422 and RS485 data transmission systems up to 6V nominal line voltage with shield wire protection and high-density DIN rail mounting.

Key Features:

• Hybrid GDT+TVS Technology: Combines gas discharge tube and TVS diode for comprehensive surge protection
• Dual Mode Protection: Provides both common mode and differential mode protection for complete line coverage
• High Current Data Transmission: Supports data rates up to 3MHz with insertion loss less than 1dB
• Shield Wire Protection: Integrated protection for shielded cable applications
• High Discharge Capacity: 20kA maximum discharge current (8/20μs) with 5kA nominal discharge current
• Compact DIN Rail Design: Space-efficient plug-in module for high-density installations
• Failsafe Operation: Short-circuit failsafe mode with transmission interrupt indicator
• Replaceable Module: Field-replaceable spare module (DLAM-06D3) for easy maintenance

Technical Specifications:

• Article Number: DLA-06D3 (Part Number 6401011)
• Network Type: RS422, RS485
• Nominal Line Voltage (Un): 6V
• Max. DC Operating Voltage (Uc): 8Vdc
• Max. Frequency: > 3MHz
• Insertion Loss: < 1dB
• Max. Load Current: 300mA at 25°C
• Max. Discharge Current (Imax): 20kA (8/20μs)
• Impulse Current (Iimp): 5kA (2 x 10/350μs, D1 Category)
• Nominal Discharge Current (In): 5kA (C2 Category)
• Protection Level (Up): 20V (C3, 10/1000μs, Line-Line and Line-Earth)
• Line Resistance: 4.7Ω (±10%)
• Connection: Screw terminal, 0.5-2.5mm²
• Mounting: DIN Rail 35mm (EN 60715)
• Material: Thermoplastic UL94 V-0
• Operating Temperature: -40°C to +85°C
• Environmental Rating: IP20
• Weight: 0.063kg

Compatible Accessories:

• Replacement Module: DLAM-06D3 (spare protection module)
• Remote Signaling Version: DLATS-06D3 (with remote fault monitoring)
• Status Indicator Version: DLAS-06D3 (with LED status indicator)
• 2-Pair Configuration: DLA2-06D3 (dual pair protection)
• Higher Voltage Variants: DLA-12D3 (12V), DLA-24D3 (24V), DLA-48D3 (48V), DLA-170 (170V)

Compliance & Certifications:

• Standards: IEC 61643-21, EN 61643-21, UL497B
• Location Categories: D1, C2, C3
• Certifications: UL Listed
• Environmental: RoHS compliant

Applications:

Essential for protecting industrial communication systems including RS422 and RS485 networks, building automation systems, SCADA equipment, process control networks, industrial fieldbus installations, telecommunications equipment, data acquisition systems, remote monitoring stations, and any low-voltage data transmission applications up to 6V requiring surge protection for both data lines and shield conductors in industrial, commercial, and telecommunications environments where lightning protection and electromagnetic interference immunity are critical for maintaining reliable high-speed data communications.