Phoenix DT-UFB / DT-TELE / DT-LAN Series – Data and Communication Surge Protection
The Phoenix DT Series includes advanced surge protection and interface modules for data transmission and telecommunication systems.
These modules protect sensitive devices and interfaces against voltage surges, lightning, and transient overvoltages in industrial networks.
Each model is optimized for different communication standards — including RS-232, RS-485, SHDSL, RJ45 Ethernet, and CAT.6+ LAN — ensuring secure and reliable data transfer across industrial environments.
1. Product Overview
| Part Number | Model | Interface Type | Protection Application | Description |
|---|---|---|---|---|
| 2803069 | DT-UFB-V24/S-9-SB | RS-232 (V.24) | Data interface | Surge protection plug for RS-232 serial interfaces, 9-pin Sub-D connector, protects against transient surges. |
| 2800055 | DT-UFB-IB-RBI | INTERBUS | Fieldbus interface | Protective module for INTERBUS communication systems; ensures stable transmission and bus signal protection. |
| 2800056 | DT-UFB-IB-RB0 | INTERBUS Remote Bus | Fieldbus interface | Surge protection for remote INTERBUS modules; reduces signal interference and overvoltage impact. |
| 2920612 | DT-UFB-485/BS | RS-485 | Serial communication | Surge protection for RS-485 interfaces and field devices; suitable for 2-wire and 4-wire data lines. |
| 2801593 | DT-TELE-SHDSL | SHDSL (Symmetrical High-Speed DSL) | Telecommunication lines | Protects DSL communication systems from transient surges; ideal for industrial modem connections. |
| 2882925 | DT-TELE-RJ45 | RJ45 | Ethernet/Telecom | Compact surge protector for RJ45 communication ports, suitable for VoIP, ISDN, and network systems. |
| 2881007 | DT-LAN-CAT.6+ | LAN (CAT.6+) | Gigabit Ethernet | High-speed LAN surge protection for CAT.6+ networks, suitable for data centers and industrial Ethernet. |
2. Technical Features
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Nominal voltage range: 5–90 V DC (depending on model)
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Surge discharge capacity: up to 20 kA (8/20 µs waveform)
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Transmission rate: up to 10 Gbps (for LAN models)
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Insertion loss: < 0.5 dB (typical)
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Connection type: Sub-D, RJ45, screw terminal or plug-in
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Installation type: Inline or interface mount
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Response time: < 1 ns
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Operating temperature: –40°C to +85°C
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Certifications: CE, UL, EAC
3. Key Advantages
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Prevents downtime due to lightning or switching surges
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Protects sensitive communication and control electronics
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Maintains signal integrity with minimal transmission loss
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Compact modular design for easy installation
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Long service life and maintenance-free operation
4. Application Areas
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Industrial automation and control systems
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Fieldbus communication (INTERBUS, PROFIBUS, RS-485)
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Telecommunication and SHDSL lines
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LAN and Ethernet networks (CAT.6/CAT.6A)
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Building automation and remote monitoring systems
Phoenix DT-UFB / DT-TELE / DT-LAN Series – Data and Communication Surge Protection
