| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Schneider TM3DM8R Modicon TM3 Discrete I/O Module
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings

Product Overview
The Schneider TM3DM8R is a discrete I/O expansion module designed for the Modicon TM3 range of controllers. It offers reliable digital input and output capabilities, ideal for compact control systems in industrial automation.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | Discrete I/O Expansion Module |
| Series | Modicon TM3 |
| Digital Inputs | 4 sink/source |
| Digital Outputs | 4 relay (NO) |
| Output Type | Relay |
| Input Voltage | 24 V DC |
| Output Voltage | 24 V DC / 230 V AC |
| Output Current | 2 A per channel |
| Isolation | 500 V AC between I/O and logic |
| Mounting Type | DIN Rail |
| Protection Type | Overvoltage, Short-circuit protection |
| Dimensions (mm) | 90 x 84.6 x 27.4 |
| Weight | 0.95 kg |
| Operating Temperature | -10°C to +55°C |
| Certification | CE, cULus, EAC |
Applications
-
Machine automation
-
Process control systems
-
Packaging equipment
-
Building management systems
-
Compact PLC control panels
Product Advantages
-
Compact design suitable for space-limited cabinets
-
Easy integration with Modicon TM3 and TM2 systems
-
Robust relay outputs for AC/DC loads
-
Detachable I/O terminals for fast wiring
-
High reliability in industrial environments
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the TM3DM8R module?
A1: It provides 4 digital inputs and 4 relay outputs for discrete signal handling.
Q2: Is the module compatible with Modicon TM221 and TM241?
A2: Yes, it is fully compatible with TM221, TM241, and other TM3-compatible controllers.
Q3: Can it be mounted on any DIN rail?
A3: Yes, it supports standard DIN rail mounting.
Q4: What is the relay output current rating?
A4: Each relay output supports up to 2 A.
Q5: Is the TM3DM8R hot-swappable?
A5: No, power must be removed before installing or removing the module.
Q6: Can the module switch AC loads?
A6: Yes, it can switch both 24 V DC and 230 V AC loads via relay outputs.
Q7: Does it require external power supply for the relays?
A7: No, it draws required power from the controller’s backplane.
Q8: Is it suitable for high-vibration environments?
A8: Yes, it meets industrial vibration resistance standards.
Q9: Are the input and output terminals removable?
A9: Yes, terminals are detachable for simplified wiring.
Q10: How do I know the I/O status?
A10: The module features LED indicators for each input and output channel.
Related or Similar Schneider TM3 Series Models
| Model | Description | I/O Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TM3DI8 | 8-channel digital input module | Digital Input | 90 x 84.6 x 27.4 | 0.10 kg |
| TM3DQ8 | 8-channel digital output module | Digital Output | 90 x 84.6 x 27.4 | 0.10 kg |
| TM3DQ16R | 16-channel relay output module | Relay Output | 90 x 84.6 x 55.0 | 0.30 kg |
| TM3DI16K | 16-channel digital input module | Digital Input | 90 x 84.6 x 27.4 | 0.15 kg |
| TM3TI4 | 4-channel thermocouple input module | Analog Input | 90 x 84.6 x 27.4 | 0.12 kg |
| TM3AI4 | 4-channel analog input module | Analog Input | 90 x 84.6 x 27.4 | 0.12 kg |
Popular Schneider Models
| Model | Description | Function | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TM241CE24T | Modicon M241 Logic Controller | PLC Controller | 142 x 90 x 71 | 0.54 kg |
| TM221CE16T | Modicon M221 Logic Controller | PLC Controller | 110 x 90 x 70 | 0.45 kg |
| BMXDDI3202K | 32-channel discrete input module | Digital Input | 100 x 70 x 40 | 0.30 kg |
| BMXDDO1602K | 16-channel discrete output module | Digital Output | 100 x 70 x 40 | 0.30 kg |
| BMEP582040 | Modicon M580 Processor Module | CPU Module | 130 x 140 x 60 | 0.60 kg |
| ATV320U07M2B | Altivar 320 Variable Speed Drive | Motor Control | 143 x 72 x 148 | 1.10 kg |
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the TM3DM8R module?
A1: It provides 4 digital inputs and 4 relay outputs for discrete signal handling.
Q2: Is the module compatible with Modicon TM221 and TM241?
A2: Yes, it is fully compatible with TM221, TM241, and other TM3-compatible controllers.
Q3: Can it be mounted on any DIN rail?
A3: Yes, it supports standard DIN rail mounting.
Q4: What is the relay output current rating?
A4: Each relay output supports up to 2 A.
Q5: Is the TM3DM8R hot-swappable?
A5: No, power must be removed before installing or removing the module.
Q6: Can the module switch AC loads?
A6: Yes, it can switch both 24 V DC and 230 V AC loads via relay outputs.
Q7: Does it require external power supply for the relays?
A7: No, it draws required power from the controller’s backplane.
Q8: Is it suitable for high-vibration environments?
A8: Yes, it meets industrial vibration resistance standards.
Q9: Are the input and output terminals removable?
A9: Yes, terminals are detachable for simplified wiring.
Q10: How do I know the I/O status?
A10: The module features LED indicators for each input and output channel.
Related or Similar Schneider TM3 Series Models
| Model | Description | I/O Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TM3DI8 | 8-channel digital input module | Digital Input | 90 x 84.6 x 27.4 | 0.10 kg |
| TM3DQ8 | 8-channel digital output module | Digital Output | 90 x 84.6 x 27.4 | 0.10 kg |
| TM3DQ16R | 16-channel relay output module | Relay Output | 90 x 84.6 x 55.0 | 0.30 kg |
| TM3DI16K | 16-channel digital input module | Digital Input | 90 x 84.6 x 27.4 | 0.15 kg |
| TM3TI4 | 4-channel thermocouple input module | Analog Input | 90 x 84.6 x 27.4 | 0.12 kg |
| TM3AI4 | 4-channel analog input module | Analog Input | 90 x 84.6 x 27.4 | 0.12 kg |
Popular Schneider Models
| Model | Description | Function | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TM241CE24T | Modicon M241 Logic Controller | PLC Controller | 142 x 90 x 71 | 0.54 kg |
| TM221CE16T | Modicon M221 Logic Controller | PLC Controller | 110 x 90 x 70 | 0.45 kg |
| BMXDDI3202K | 32-channel discrete input module | Digital Input | 100 x 70 x 40 | 0.30 kg |
| BMXDDO1602K | 16-channel discrete output module | Digital Output | 100 x 70 x 40 | 0.30 kg |
| BMEP582040 | Modicon M580 Processor Module | CPU Module | 130 x 140 x 60 | 0.60 kg |
| ATV320U07M2B | Altivar 320 Variable Speed Drive | Motor Control | 143 x 72 x 148 | 1.10 kg |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
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