Schneider Electric Zelio SR3XT61BD Expansion Module, 4 Digital Inputs, 2 Relay Outputs, 24V DC

The Schneider Electric Zelio SR3XT61BD is a dedicated expansion module engineered to increase the input and output capabilities of Zelio Logic smart relays. This compact unit provides 4 digital inputs and 2 relay outputs, operating seamlessly on a 24V DC power supply. It is designed to integrate directly into existing automation architectures, allowing for more complex control logic and the management of additional peripheral devices in industrial and commercial environments.

Advantages

This expansion module offers a robust solution for scaling automation systems without the need for replacing the primary controller. By providing additional I/O points, it enables the monitoring and control of more sensors and actuators, which enhances the overall flexibility of the system. The relay outputs ensure reliable switching for various electrical loads, while the 24V DC operation aligns with standard industrial control voltage requirements, ensuring compatibility and stable performance in demanding operational conditions.

Suitable for

• Expanding I/O capacity in small-scale industrial automation
• Commercial building control systems
• Monitoring and switching peripheral equipment
• Enhancing logic control in manufacturing processes

This module may not be suitable for applications requiring high-speed pulse counting or analog signal processing, as it is strictly limited to digital and relay-based operations. Furthermore, it is not intended for use in environments exceeding the specified temperature or environmental protection ratings of the Zelio Logic series.

Key specifications

• Input type: 4 digital inputs
• Output type: 2 relay outputs
• Supply voltage: 24V DC
• Compatibility: Zelio Logic smart relays
• Mounting: DIN rail or panel mounting

To use the module, connect it to the base Zelio Logic smart relay using the provided expansion connector. Ensure the power supply is disconnected during installation to prevent electrical hazards. Once physically connected, the module is automatically recognized by the Zelio Soft software, where you can configure the additional inputs and outputs within your control program to suit your specific application requirements.

What to consider before purchase

• Verify compatibility with your existing Zelio Logic base unit
• Ensure your power supply provides a stable 24V DC output
• Check that the number of inputs and outputs meets your project requirements
• Confirm the physical space available for the expansion module on the DIN rail

For optimal performance and longevity, ensure that the relay outputs are not subjected to loads exceeding their rated capacity and maintain proper ventilation around the module to prevent overheating during continuous operation.