Weidmuller TRS 24VDC 1CO Slim DIN Rail Relay Module

The Applications

1. Protecting PLC Outputs in Continuous Automation
In many industrial control systems, PLC outputs are not designed to directly handle higher currents or inductive loads. The TRS 24VDC 1CO relay module is used as an interface layer that safely separates the controller from field devices. By switching the load through the relay instead of the PLC, electrical stress on output modules is significantly reduced. The relay absorbs voltage spikes and switching noise that could otherwise shorten controller lifespan. Its compact DIN-rail format allows multiple channels to be installed in limited space, making it ideal for scalable automation systems that must remain reliable under continuous operation.

2. Switching Valves and Actuators in Compact Machines
Machine builders often need to control solenoid valves, indicators, or small motors using low-voltage control signals. The TRS 24VDC 1CO relay module enables this by converting a low-power control signal into a stable switching interface for higher loads. The robust contact design supports frequent switching cycles without performance loss, which is essential in repetitive machine sequences. Electrical isolation between control and load circuits improves safety and reduces troubleshooting time. This approach is commonly applied in packaging equipment, automated assembly lines, and special-purpose machines where stable and predictable actuator control is required.

3. Clean Signal Separation in Noisy Environments
Process automation systems often operate in environments with electrical noise, long cable runs, and mixed voltage levels. The TRS 24VDC 1CO relay module is used to isolate control signals from field wiring, reducing interference and preventing unwanted signal coupling. Reinforced insulation helps maintain signal integrity while switching alarms, interlocks, or control loops. By separating grounding references and voltage domains, the relay improves overall system stability. This makes it well suited for process control applications such as fluid handling, energy distribution, and environmental monitoring where reliable signal behavior is critical.

4. High-Density Control Panels and Retrofit Projects
Modern control cabinets demand higher functionality within smaller enclosures. The slim profile of the TRS 24VDC 1CO relay module allows engineers to increase channel density without expanding cabinet size. This is especially valuable in retrofit projects where enclosure dimensions cannot be changed. Despite its compact form, the relay delivers dependable switching performance and long service life. Easy screw-terminal wiring supports clean layouts and faster installation. As a result, system builders can achieve space optimization while maintaining reliability, accessibility, and long-term maintainability in densely populated control panels.