RS232 isolator 1kV in top-hat rail housing

RS232 Isolator 1kV in DIN Rail Housing by Wiesemann & Theis

The RS232 Isolator 1kV in DIN rail housing (#88205) by Wiesemann & Theis provides a reliable solution for galvanic isolation of RS232 connections to protect devices from potential differences and electromagnetic interference. With an isolation voltage of 1 kV DC and active RS232 interfaces supported by their own power supply, the isolator is ideal for applications in Industry 4.0, automation technology, and control engineering. The two RS232 ports (9-pin Sub-D plug with DTE wiring and 9-pin Sub-D socket with DCE wiring) allow flexible device connection, even to low-power interfaces. The signal refreshing ensures stable data transmission, while the transparent operation without setting transmission parameters simplifies installation. The DIN rail housing and external power supply via a pluggable screw terminal make the isolator especially suitable for industrial control cabinets. The isolator meets strict standards for office and industrial environments and offers a five-year warranty. This article highlights the technical features, applications, and benefits of the RS232 Isolator 1kV.

Galvanic Isolation: Protection Against Potential Differences

The RS232 Isolator 1kV galvanically isolates RS232 connections between two devices to prevent equalizing currents and potential differences that can disrupt data transmission or damage interface components. Potential differences often arise with longer cable lengths, for example through distant lightning strikes or switching operations of powerful electrical loads during normal operation. Even a voltage difference of 7 V can cause transmission errors, while differences over 30 V risk destroying interface components. The isolator provides an isolation voltage of 1 kV DC, ensuring robust separation between ports and dramatically increasing the lifespan of connected devices. This is especially important in industrial applications where RS232 interfaces are frequently used for communication between controllers, sensors, or terminals over long distances. The isolator's active RS232 interfaces, supported by their own power supply, enable reliable operation even on low-power interfaces found in older or cost-effective devices. Signal refreshing improves signal quality and ensures stable data transmission, even over long cables.

Interfaces and Connectivity

The RS232 isolator features two RS232 interfaces: a 9-pin Sub-D plug with DTE wiring (Data Terminal Equipment) and a 9-pin Sub-D socket with DCE wiring (Data Communication Equipment). This combination allows flexible connection of devices such as PCs, controllers, or modems without additional adapters. The galvanic isolation between ports with an isolation voltage of 1 kV DC protects both sides from electrical interference and ensures secure data transmission. The isolator operates transparently without requiring adjustments of transmission parameters (such as baud rate or parity), simplifying integration into existing systems. The DIN rail housing enables easy mounting in industrial control cabinets, making the isolator ideal for automation technology applications. The active interfaces and signal refreshing ensure reliable communication, even with long cable runs or in environments with electrical interference.

Power Supply and Energy Efficiency

The RS232 Isolator 1kV is powered by an external power supply of 12 V to 24 V AC/DC connected via a pluggable screw terminal. The power input is galvanically isolated, providing additional protection against potential differences and increasing the safety of the overall installation. This dedicated power supply enables operation of active RS232 interfaces that reliably support even low-power devices. The flexible power supply is especially advantageous in industrial environments where various power sources may be available. The isolator’s energy-efficient design minimizes power consumption and makes the device environmentally friendly. These features are crucial for applications demanding reliability and energy efficiency, such as automation technology or production environments.

Compliance and Reliability

The RS232 Isolator 1kV complies with stringent standards for immunity (EN 61000-6-2) and emissions (EN 55032:2015 + A1 Class B, EN 61000-3-2, EN 61000-3-3), qualifying it for use in residential, commercial, and industrial environments. Its high immunity ensures reliable operation even in environments with electromagnetic interference, such as production facilities or control centers. CE marking and UL certification confirm suitability for international applications, while the robust construction is designed for continuous operation. With a five-year warranty, the isolator offers a low-maintenance and durable solution for professional users. The galvanic isolation and active interfaces provide additional safety and stability, especially in applications with long cable lengths.

Versatile Applications

The RS232 Isolator 1kV is ideal for applications requiring galvanic isolation to ensure reliability and safety of RS232 connections. In automation technology, the isolator protects controllers, sensors, or terminals from potential differences caused by long cables or electrical loads. For example, an RS232 terminal in a production hall can be connected to a controller over several meters without communication disturbances. In control engineering, the isolator prevents electrical interference between devices, which is critical in industrial projects. In data acquisition, galvanic isolation ensures precise data by eliminating equalizing currents, such as when connecting RS232 sensors for environmental parameter measurement. The DIN rail mounting makes the isolator especially suitable for industrial control cabinets, while support for low-power interfaces ensures compatibility with older devices. Signal refreshing enables stable transmissions even over long distances, making the isolator versatile for environments ranging from production halls to data centers.

Advantages of Transparent Operation and DIN Rail Mounting

The transparent operation of the RS232 isolator is a major advantage, as no transmission parameter adjustments are required. This reduces configuration effort and makes the isolator compatible with a broad range of RS232 devices, regardless of baud rate or protocol settings. The DIN rail housing enables easy and stable mounting in industrial environments where space and order in control cabinets are essential. The active interfaces supported by a dedicated power supply ensure reliable communication even with low-power devices. This combination of user-friendliness and robust design is particularly beneficial in environments demanding fast and reliable solutions, such as industry or automation technology.

Please note: The power supply is NOT included in the delivery.

Reliable and User-Friendly Solution for RS232 Isolation

The RS232 Isolator 1kV in DIN rail housing by Wiesemann & Theis impresses with its simplicity, high reliability, and standards compliance. With galvanic isolation, active RS232 interfaces, signal refreshing, DIN rail mounting, and external power supply, it is the ideal solution for applications in automation technology, control engineering, and data acquisition. The five-year warranty underlines the longevity and quality of this compact solution.