Schneider TM3DQ8R Modicon TM3 8-Channel Relay Output Module

Product Overview

When your automation system demands reliable switching of high-current loads, the Schneider Electric TM3DQ8R delivers. This Modicon TM3 discrete output module provides 8 normally open relay outputs, each rated for 24 V DC or 240 V AC at 2 A. Designed for seamless integration with Modicon M221, M241, M251, and M262 controllers, the TM3DQ8R handles both positive and negative logic, giving you flexibility in wiring and control schemes.

Technical Specifications

The TM3DQ8R offers 8 relay outputs with a common terminal arrangement. Each output switches up to 2000 mA at 24 V DC or 240 V AC, with a minimum load of 10 mA at 5 V DC to ensure reliable contact wetting. Response times are 10 ms turn-on and 5 ms turn-off, making it suitable for moderate-speed applications. The module consumes 5 mA at 5 V DC via the bus connector when outputs are off, and 40 mA at 24 V DC when all outputs are on. Mechanical durability exceeds 20,000,000 cycles, providing long service life in high-cycle environments.

Industry Applications

In packaging lines, the TM3DQ8R controls solenoid valves and motor contactors, handling the 240 V AC loads typical of European machinery. For material handling systems, its 2 A per channel capability drives small DC motors and indicator lamps directly. The module's 2300 V AC isolation between output and internal logic protects your controller from voltage transients, reducing downtime in harsh industrial settings.

Installation & Mounting

Mount the TM3DQ8R on a standard DIN rail (TH35-15 or TH35-7.5 per IEC 60715) or on a panel using the optional fixing kit. Electrical connections use an 11-position removable screw terminal block with 5.08 mm pitch, accepting wires up to 2.5 mm². Keep unshielded cable runs under 30 meters for relay outputs to maintain signal integrity. The module measures 90 mm high, 27.4 mm wide, and 84.6 mm deep, with a net weight of 0.11 kg.

Maintenance & Reliability

With IP20 protection (with protective cover) and a pollution degree 2 rating, the TM3DQ8R suits clean industrial environments. It operates from -10 to 55 °C in horizontal installation, or -10 to 35 °C when mounted vertically. Periodic inspection of terminal tightness and relay contact wear ensures consistent performance. The module's compliance with EN/IEC 61131-2 and certifications including CE, cULus, UKCA, RCM, and EAC guarantee global acceptance.

Compatibility & Integration

The TM3DQ8R is designed for Modicon M221, M241, M251, and M262 programmable logic controllers. It connects via the TM3 bus, drawing power and communication directly from the controller backplane. No external power supply is needed for the logic side, though the relay outputs require an external 24 V DC or 240 V AC source. The module supports both positive and negative logic, simplifying integration with sensors and actuators of different polarities.

Selection Guide & Purchasing Advice

Before ordering, verify that your controller supports TM3 expansion modules and that the output current (2 A per channel) meets your load requirements. For higher current or inductive loads, consider an external interposing relay. BluePLC Industrial stocks the TM3DQ8R and can advise on compatible accessories like the fixing kit or spare terminal blocks. Contact us for current availability and lifecycle status.