TM3DQ8T
Schneider Electric
Overview
The TM3DQ8T is a distributed I/O module in the Modicon TM logic controller / I/O range from Schneider Electric. Digital Output Module, 8 channels, transistor 0.5 A.
Application & Technical Notes
As a modicon tm logic controller / i/o device, the TM3DQ8T is intended for deployment in panel-based control cabinets and machine enclosures where Modicon TM logic controller / I/O equipment is installed. It localises I/O close to the field devices, reducing wiring length and bringing intelligence to the periphery of the installation.
Key published characteristics include 24 vdc transistor output, source (pnp) signal handling, a 24 Vdc (via TM3 bus) rating, an operating temperature range of 0...+55 °C. These values should be confirmed against the current manufacturer datasheet before final selection, as options and suffixes vary by configuration.
Maintenance & Diagnostics
Respect the published operating temperature window (0...+55 °C); do not exceed it during commissioning or in enclosed panels without airflow. For storage and transit, keep the unit within -25...+70 °C. Verify field wiring, shielding and grounding at installation; check terminal torque and confirm signal types match the configured range. Periodically inspect for loose terminations, induced noise and channel-level diagnostics reported by the controller. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.
Sourcing & Procurement
When sourcing the TM3DQ8T, distinguish three supply tiers: (1) genuine Schneider Electric stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.
Confirm the module matches your Modicon TM logic controller / I/O rack, the required channel count, signal type and voltage, and the firmware/configuration of the controller. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.
Frequently Asked Questions
What is the TM3DQ8T?
The TM3DQ8T is a modicon tm logic controller / i/o device in the Modicon TM logic controller / I/O range from Schneider Electric. It belongs to the Modicon TM logic controller / I/O automation family.
What are the key technical ratings of the TM3DQ8T?
Its published highlights include 24 Vdc (via TM3 bus), operating temperature 0...+55 °C. Full electrical, mechanical and environmental limits are listed in the manufacturer datasheet and should be confirmed for your exact suffix.
How is the TM3DQ8T mounted or installed?
Installation follows the standard Modicon TM logic controller / I/O mounting practice for this device class; refer to the installation manual for exact dimensions and torque.
Is the TM3DQ8T compatible with my controller?
It is part of the Modicon TM logic controller / I/O family. Confirm the specific rack, firmware revision, slot rules and configuration with the controller documentation before purchase, as compatibility depends on the exact system build.
What should I check before buying the TM3DQ8T?
Verify the genuine part number and suffix, confirm it matches your platform and ratings, check the current lifecycle/availability status, and buy from an authorised distributor. PLCXpert provides this reference only and does not sell the component.
Specifications
Digital Output Module, 8 channels, transistor 0.5 A
I/O Specifications
| Module type | Digital output (transistor, source/PNP) |
|---|---|
| Channels | 8 |
| Signal type | 24 Vdc transistor output, source (PNP) |
| Range | 24 Vdc (nominal) |
| Output current | 0.5 A per channel (max) |
| Resolution | N/A |
| Accuracy | N/A |
| Isolation | 500 V AC between output and internal logic; no isolation between channels |
| Diagnostics | Module status, bus status; short-circuit and overload protection |
| Response time | 450 µs max. (turn on/off) |
| Wiring | Removable screw terminal block, 5.08 mm pitch |
Electrical
| Supply voltage | 24 Vdc (via TM3 bus) |
|---|---|
| Power consumption | Not available |
| Bus current | 20 mA at 5 V DC (all outputs on); 5 mA (all outputs off) |
Environmental
| Operating temperature | 0...+55 °C |
|---|---|
| Storage temperature | -25...+70 °C |
| Protection rating | IP20 |
Physical
| Dimensions (H×W×D) | 90 × 27.4 × 84.6 mm |
|---|---|
| Weight | 0.1 kg |
Compatibility
| Compatible platforms | Modicon M221, M241, M251, M262 |
|---|
Status
| Lifecycle | Active (Last verified: 2026-09) |
|---|
Lifecycle
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.