Ethernet Surge Protection Device SPD-ET...
The SPD-ETH-RJ45 is a heavy-duty DIN rail Gigabit Ethernet surge protection device providing high-speed transient voltage clamping for industrial IP cameras, PLCs, and network switches over Cat5e and Cat6 lines.

Key Features
- High-speed Ethernet surge protection for Cat5e and Cat6 lines
- Two-stage hybrid suppression (Gas Discharge Tube + fast TVS array)
- Compatible with 10/100/1000M Gigabit networks and PoE / PoE+ systems
- Clamps lightning-induced transients and high-voltage spikes
- Ultra-fast response time (< 1 ns) with low signal insertion loss
- Protects IP cameras, industrial PLCs, and network switches
- Shielded RJ45 female connectors with chassis earth ground connection
- Compact DIN rail and surface mountable housing
- Dimensions: 80 mm × 25 mm × 25 mm
Ordering Information
| Product Code | Description |
|---|---|
| SPD-ETH-RJ45 | Ethernet Surge Protection Device SPD-ETH-RJ45 |
| SPD-24V-DC | Surge Protection Device 24V DC SPD |
| SPD-230V-AC | Surge Protection Device 230V SPD / Single Phase SPD |
| SPD-RS485 | Surge Protection Device RS485 |
| UC-ETH-RS485 | Ethernet to RS485 Converter |
Applications
- Industrial Automation & Process Control: Reliable signal interfacing and device connectivity across automated production lines.
- SCADA & PLC Integration: Seamless communication between field instrumentation and control systems.
- Control Panel Building: Compact 35 mm DIN rail mounting for clean and space-efficient cabinet wiring.
- OEM Equipment & Diagnostics: Robust electrical protection and standard industrial ratings.
Specifications
| Parameter | Value |
|---|---|
| Mounting Type | DIN Rail |
| Dimensions | 60 mm x 50 mm x 20 mm (L x W x H) |
| Enclosure Material | Industrial ABS plastic |
| Operating Temperature | -10 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage | Max 5.5 V DC |
| Nominal Discharge Current (In) | 5 kA (8/20 µs impulse) |
| Max Discharge Current (Imax) | 10 kA (8/20 µs impulse) |
| Response Time (tA) | < 1 ns (TVS) / < 25 ns (GDT) |
| Protection Technology | Multi-stage Hybrid (GDT + TVS Clamping) |
Isolation & Protection Specifications
| Parameter | Value | Standard / Notes |
|---|---|---|
| Voltage Clamping Level | Low Clamping | High-efficiency multi-stage surge attenuation |
| Surge Standard | IEC 61643-21 / IEC 61000-4-5 | Class-compliant industrial transient immunity |
| Grounding Interface | Integrated PE Terminal | Low-impedance earth DIN rail connection |
Mechanical Dimensions

Terminal Details & Wiring
RJ45 Port Connections
| Port | Connector | Signal / Channel | Description |
|---|---|---|---|
| LINE IN (Field) | RJ45 Jack | Cat5e / Cat6 Gigabit | Unprotected incoming network cable from field / outdoor switch |
| LINE OUT (Equip) | RJ45 Jack | Cat5e / Cat6 Gigabit | Protected clean network cable to PLC, IP camera, or switch |
| Earth Stud / Clip | PE Terminal | Chassis Earth | Heavy-duty copper earth ground stud and 35 mm DIN rail clip |
Revision History
| Revision | Date | Description of Change |
|---|---|---|
| Rev 1.0 | 2026-09-09 | Initial datasheet release |
Get the latest version of this datasheet : click here..
Support
Website: www.veawe.io
Email: info@veawe.io