The Schneider TM3DQ8T is an 8‑channel discrete (digital) output module designed to expand the I/O capabilities of Schneider Electric’s Modicon TM3 I/O system, compatible with logic controllers such as the Modicon M221, M241, M251, and M262. It provides PNP transistor (positive logic source) outputs rated for standard 24 V DC industrial control applications.
Specifications
General
Product type: Discrete (digital) output module (TM3 series)
Model: TM3DQ8T
Series compatibility: Modicon TM3 I/O system (with M221, M241, M251, M262 controllers)
Mounting: DIN‑rail (TH35‑15 or TH35‑7.5) or panel with fixing kit
Protection rating: IP20
Dimensions: Approx. 27.4 mm × 84.6 mm × 90 mm
Operating temperature: −10 °C to +55 °C (horizontal); −10 °C to +35 °C (vertical)
Storage temperature: −25 °C to +70 °C
Outputs
Number of outputs: 8 discrete outputs
Output type: PNP transistor (source logic)
Rated output voltage: 24 V DC
Rated output current: 0.5 A per channel (max)
Total module current capacity: ~4 A total (8 × 0.5 A)
Response time: ~450 µs turn‑on/off
Maximum leakage current: ~0.1 mA
Maximum voltage drop: < 0.4 V across the output
Output logic: Positive (source) logic
Load types: Suitable for resistive and inductive loads (standard industrial outputs)
Connections & Indicators
Electrical connection: Removable screw terminal block (5.08 mm pitch)
Local status signalling: One green LED per output channel indicating ON/OFF status
Typical Applications
Expanding discrete outputs for PLC automation systems
Controlling solenoids, relays, lights, and other 24 V DC actuators
Fast switching applications where transistor outputs are preferred
General purpose machine and process automation control