1. Product Overview The Schneider TM3DQ8R is an 8-channel relay output module from the Modicon TM3 series, designed for industrial automation control systems. As a key component of the TM3 modular I/O
The Schneider TM3DQ8R is an 8-channel relay output module from the Modicon TM3 series, designed for industrial automation control systems. As a key component of the TM3 modular I/O system, it connects to TM3 bus adapters or directly interfaces with Modicon M221/M251 PLCs, delivering reliable switching control.
Featuring high-quality relay components, each channel provides independent relay contacts (5A@250VAC/30VDC) for mixed AC/DC load control. Its compact design (45mm wide) suits high-density installations, with per-channel LED status indicators for easy commissioning. Compliant with IEC 61131-2 and certified to CE, UL, cUL, it's globally applicable.
2. Key Features
(1) Electrical Specifications
Output Configuration:
8 relay outputs (NO contacts)
Contact form: SPST
Contact rating:
5A @ 250VAC (resistive)
5A @ 30VDC (resistive)
3A @ 250VAC (inductive, cosφ=0.4)
Mechanical life: 10,000,000 operations
Electrical life:
100,000 cycles @ rated load
300,000 cycles @ 1/2 load
Isolation:
Channel-to-channel: 1500VAC
Channel-to-bus: 1500VAC
(2) Mechanical Design
Width: 45mm
Mounting: DIN rail (EN 60715)
Connections:
Top: TM3 bus connector (integrated)
Bottom: Removable terminal block (screw clamp)
Wire size: 0.5-2.5mm² (AWG 20-12)
(3) Environmental Ratings
Operating temp: -20°C to +60°C
Storage temp: -40°C to +85°C
Humidity: 5-95% non-condensing
Protection: IP20 (enclosure required)
Vibration: 5-57Hz/0.075mm, 57-150Hz/1g
Shock: 15g/11ms
EMC: IEC 61000-4 compliant
(4) Diagnostics
Per-channel green LED indicators
Module power red LED
TM3 bus communication status
3. Typical Applications
(1) General Equipment Control
Motor start/stop (<5A contactors)
Solenoid valve control (pneumatic/hydraulic)
Heater on/off control
(2) Production Line Automation
Conveyor motor control
Packaging machine actuators
Assembly line jig control
(3) Building Automation
Lighting circuit control
Ventilation equipment
Pump control
(4) Special Load Driving
AC contactor coil driving
Signal lamps (AC/DC compatible)
Small DC motor control
4. Why Choose Schneider TM3DQ8R?
(1) Load Compatibility
Unique relay design supports both AC (250VAC) and DC (30VDC) loads without additional relays.
(2) High Contact Rating
5A capacity exceeds competitors (typically 2-3A), enabling direct control of higher-power loads.
(3) Robust Construction
Gold-plated contacts maintain <50mΩ resistance after prolonged use, ideal for frequent switching.
(4) Plug-and-Play Integration
Auto-recognized via TM3 bus, seamlessly works with TM3/M221/M251 systems without complex setup.
(5) Space Efficiency
45mm width saves >50% space versus conventional modules, perfect for high-density cabinets.
