Schneider TM3DQ8R: A Compact 8-Relay Output Module for Modicon Controllers
The Schneider TM3DQ8R is a discrete output module from the Modicon TM3 family, engineered for reliable control in industrial automation. This module offers eight normally open relay outputs and supports both 24 V DC and 240 V AC loads, making it a versatile choice for switching actuators, signal lights, and small motors. Engineers and procurement professionals value its compact design and strong compatibility with Schneider Electric’s Modicon M221, M241, M251, and M262 controllers.
Key Features and Technical Highlights
The Schneider TM3DQ8R delivers a robust set of specifications tailored for demanding environments. Each relay output handles up to 2 A, with a mechanical durability of 20 million cycles. The module responds in 10 ms on turn-on and 5 ms on turn-off, ensuring fast and consistent switching. Insulation between output and internal logic reaches 2300 V AC, providing excellent noise immunity and safety.
Operating temperature ranges from -10 °C to 55 °C in horizontal installation, and the module carries an IP20 protection rating with a protective cover. It meets multiple certifications including CE, cULus, UKCA, RCM, and EAC, which simplify global deployment. Additionally, the TM3DQ8R withstands electrostatic discharges of up to 8 kV in air and vibration up to 3 gn on a DIN rail.
Compatibility and Integration
This module is designed for seamless integration with the Modicon TM3 ecosystem. It connects via an 11-pin removable screw terminal block (pitch 5.08 mm) and draws minimal bus power—only 40 mA at 24 V DC when all outputs are active. The compact footprint (27.4 mm width) saves panel space, and mounting options include TH35 DIN rails or a panel with a fixing kit. Unshielded cable runs up to 30 m are supported for relay outputs, offering flexibility in layout.
Practical Applications for the TM3DQ8R
Industrial automation engineers frequently use the Schneider TM3DQ8R for discrete control tasks. Common applications include on/off control of conveyor belts, valve actuators, and status indication panels. Its high mechanical durability makes it suitable for high-cycle operations such as sortation systems and packaging machinery. The module’s positive or negative logic capability simplifies wiring in both sourcing and sinking configurations.
Maintenance teams benefit from the per-channel green LED indicators, which provide instant visual feedback on output status. The removable screw terminal block eases replacement without disturbing wiring. With a net weight of only 0.11 kg, the module is easy to handle during installation or retrofitting.
Conclusion: Why Choose the Schneider TM3DQ8R?
The Schneider TM3DQ8R stands out as a durable, compact, and widely compatible relay output module. Its 8-channel capacity, strong insulation, and global certifications make it a solid choice for OEMs and system integrators. For procurement professionals seeking a reliable component for Modicon-based automation projects, the TM3DQ8R delivers consistent performance and long service life. Explore this module at PLC Source PRO to enhance your next control system design.