Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
PLC selection guide for engineers covering IEC 61131 compliance, Siemens, Rockwell, Schneider, ABB comparison, scan time sizing, and wiring. Shop at Stoklink.
The Schneider Electric TM3DQ8T is a Modicon TM3 expansion module that adds 8 transistor discrete outputs with positive (source) logic and 24 V DC output voltage to Modicon M221, M241, M251 and M262 logic controllers. Each channel switches up to 50 mA with a response time of 450 microseconds and mounts via the TM3 bus connector.
Pick the TM3DQ8T when the downstream loads or drives expect positive (source) logic; the TM3DQ8U covers the same 8-channel transistor output count but wired for negative (sink) logic instead. Both share the 50 mA per-channel rating and 450 microsecond switching time, so the decision comes down to the sinking or sourcing convention of the connected actuators.
| Range of Product | Modicon TM3 |
|---|---|
| Product or Component Type | Discrete output module |
| Range Compatibility | Modicon M241, Modicon M251, Modicon M221, Modicon M262 |
| Device Application | Industrial Application |
| Discrete output number | 8 |
| Discrete output logic | Positive logic (source) |
| Discrete output voltage | 24 V DCtransistor |
| Discrete output number | 8 transistor |
|---|---|
| Discrete output current | 50 mA transistor output |
| Response time on output | 450 µs maximum (turn on), 450 µs maximum (turn off) |
| Maximum leakage current | 0.1 mA |
| Maximum voltage drop | <0.4 V |
| Safety reliability data | MTBF = 100 years 40 °C |
| Power supply type | Electronic powered by internal bus |
| Typical current consumption | 5 mA 5 V DC, 0 mA 24 V DC, 20 mA 5 V DC, 10 mA 24 V DC |
| Electrical connection | 11 x 2.5 mm² removable screw terminal block with pitch 5.08 mm adjustment for outputs |
| Maximum cable distance between devices | Unshielded cable <98.4 ft (30 m) transistor output |
| Isolation between channels and bus | 500 V AC |
| Local signalling | 1 LED per channel (green) for output status |
| Housing Colour | Grey |
| AWG gauge | 0.0003…0.004 in² (0.2…2.5 mm²) / 24 AWG...14 AWG with solid cable |
| Mounting support | Top hat type TH35-15 rail IEC 60715, Top hat type TH35-7.5 rail IEC 60715, plate or panel with fixing kit |
| Height | 3.5 in (90 mm) |
| Width | 1.08 in (27.4 mm) |
| Depth | 3.3 in (84.6 mm) |
| Net Weight | 1.68 lb(US) (0.76 kg) |
| IP Degree of Protection | IP20 |
|---|---|
| Protective treatment | None |
| Marking | CE |
| Product certifications | CE, CULus, UKCA, RCM, EAC, CULus HazLoc |
| Standards | IEC 61131-2 |
| Ambient air temperature for operation | 14…95 °F (-10…35 °C) vertical installation), 14…131 °F (-10…55 °C) horizontal installation) |
| Ambient air temperature for storage | -13…158 °F (-25…70 °C) |
| Relative humidity | 10…95 % without condensation for operation, 10…95 % without condensation for storage |
| Operating altitude | 0...6561.68 ft (0...2000 m) |
| Pollution degree | 2 |
| Vibration resistance | 3.5 mm 5…8.4 Hz) on DIN rail, 3 gn 8.4…150 Hz) on DIN rail, 3.5 mm 5…8.4 Hz) on panel mounting, 3 gn 8.4…150 Hz) on panel mounting |
| Shock resistance | 15 gn 11 ms |
| Part number | TM3DQ8T |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480611469 |
| Warranty (in months) | 18 |
|---|
| Country of origin | TW |
|---|---|
| Shipping weight | 0.76 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for TM3DQ8T is 853710.
The EAN (GTIN) of TM3DQ8T is 3606480611469.
TM3DQ8T ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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