HD674-A003-E4V isolated Modbus Slave to Modbus TCP Master converter with metal housing and 4kV protection

Industrial isolated Modbus Slave to Modbus TCP Master Converter, metal housing resistant to vibration and shock with triple 4kV isolation between Modbus Slave/Modbus TCP Master, Modbus Slave/power supply and Modbus TCP Master/power supply.

Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector and in fragile environments. Thanks to its rugged metal housing, the HD674-A003-E4V is designed for high mechanical resistance, ensuring durability even under conditions of vibration, shocks and temperature fluctuations. Two versions are available: one with a coating of the PCB (suffix code V) that ensures total protection from dust (IP65), and another with encapsulation-based resin (suffix code R), which guarantees IP67 protection, high-performance insulation and increased resistance to moisture and electrical noise. This flexibility allows the device to be deployed in both dry and highly humid industrial environments while maintaining reliable data transmission.

This product can be mounted on any type of surface (horizontal, vertical and oblique) with four fixing lugs, also you can choose the type of connector, Mini-Fit or Superseal 1.5. Such flexibility allows engineers and installers to adapt the device to existing infrastructures without redesigning the installation. The availability of different connectors (Mini-Fit® or Superseal 1.5) increases compatibility with a wide range of industrial cabling systems. Combined with DIN rail mounting capability, this ensures quick installation and secure fixing in both stationary and mobile applications.

Excellent range of temperature resistance from -40°C to +105°C, features required by AUTOMOTIVE. This wide temperature span allows use in extreme conditions such as engine compartments, outdoor cabinets, or transport systems exposed to varying climates. Additionally, the triple 4kV galvanic isolation provides strong protection against surges, ensuring long-term stability and safety for both the converter and the connected devices. These industrial-grade protections are critical in sensitive applications like railway systems, marine automation, and energy management.

Specifications:

• Ports: 1x RS485; 1x Ethernet
• Data Rates RS485: Up to 115200 bps
• Data Rates Modbus TCP: 10/100 Base-T Autosensing
• RS485 connector: 3way Mini-Fit®
• Modbus TCP connector: RJ45
• Power supply connector: 2way Mini-Fit®
• Power supply: 10...40VDC; 8...26VAC
• Operating temperature: -40°C to +105°C (-40°F/+221°F)
• Dimensions: 76 mm x 86 mm x 40 mm (DxWxH)
• Dimensions with fixing lugs A: 105 mm x 86 mm x 40 mm (DxWxH)
• Dimensions with fixing lugs B: 83 mm x 112.5 mm x 40 mm (DxWxH)
• Dimensions with fixing lugs C: 105 mm x 112.5 mm x 40 mm (DxWxH)
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• Software: SW674-A003
• ORDER CODE: HD674-A003-E4V

The technical specifications highlight the robustness of the HD674-A003-E4V, which combines industrial-grade RS485 and Ethernet connectivity in a compact form factor. With flexible power supply ranges, wide temperature tolerance, and optional sealing up to IP67, this converter is ideal for environments where reliability and durability are paramount.

Configurator - Software SW674-A003 FREE DOWNLOAD

Manufacturer's warranty: 24 months

Each device is covered by a 24-month manufacturer’s warranty, ensuring long-term support and reliability. Combined with software updates and industrial-grade protections, the HD674-A003-E4V provides a future-proof solution for mission-critical Modbus communication systems.

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