Name: TM3DQ8R Relay Output Module | Modicon TM3 8-Channel 2A | Schneider Electric
SKU: TM3DQ8R
Price: 234.00 USD
Availability: InStock

Product details

Product Overview

TM3DQ8R is an 8-channel relay output module from Schneider Electric. It belongs to the Modicon TM3 series. This module works with M241, M251, M221, and M262 controllers. It offers normally open relay contacts for switching both AC and DC loads. Each output handles up to 2 A current.

Key Features

8 relay outputs (normally open)
Voltage: 24 V DC or 240 V AC
Current per output: 2 A (2000 mA)
Response time: 10 ms ON, 5 ms OFF
Mechanical durability: 20 million cycles
LED indication: One green LED per channel
Compact width: 27.4 mm

Technical Specifications (Hierarchical)

General
- Brand: Schneider Electric
- Model: TM3DQ8R
- Series: Modicon TM3
- Type: Discrete Output Module
- Output type: Relay (normally open)
Electrical
- Number of outputs: 8
- Output voltage: 24 V DC or 240 V AC
- Output current: 2 A per channel
- Minimum load: 10 mA at 5 V DC
- Logic: Positive or negative
Power Consumption
- At 5 V DC bus: 5 mA (OFF), 30 mA (ON)
- At 24 V DC bus: 0 mA (OFF), 40 mA (ON)
Performance
- Response time (ON): 10 ms
- Response time (OFF): 5 ms
- Mechanical durability: 20,000,000 cycles
Isolation
- Output to logic: 2300 V AC
- Between outputs: 750 V AC
- Between output groups: 1500 V AC
Physical
- Width: 27.4 mm
- Height: 90 mm
- Depth: 84.6 mm
- Weight: 0.11 kg
- Mounting: DIN rail (TH35-15/TH35-7.5) or panel
Environmental
- Operating temp: -10..55 °C (horizontal), -10..35 °C (vertical)
- Storage temp: -25..70 °C
- Humidity: 10..95 % non-condensing
- IP rating: IP20 (with cover)
- Pollution degree: 2
- Altitude: 0..2000 m
EMC & Certifications
- Standards: EN/IEC 61131-2
- Certifications: CE, cULus, UKCA, RCM, EAC, HazLoc
- ESD: 8 kV air, 4 kV contact
- EFT: 2 kV for relay outputs
- Surge: 1 kV common mode
- Radiated emissions: Class A

Expert Review

“TM3DQ8R is a workhorse for discrete control. Its 2 A relay contacts handle most solenoid and indicator loads. The 20 million cycle rating ensures long service life. We recommend it for applications needing multiple AC/DC outputs in a small footprint.”

Manager’s Insight

“This module offers great value for money. Eight relays in 27.4 mm width save panel space. The screw terminal block simplifies wiring. With global certifications and 12-month warranty, it reduces procurement risk for machine builders.”

Applications & Compatible Devices

Controllers: Modicon M241, M251, M221, M262
Loads: Solenoids, contactors, small motors, indicator lights, valves
Industries: Packaging, conveyor systems, HVAC, material handling
Typical use: On/off control of actuators and alarms

Frequently Asked Questions

Q: Can this module switch 240 V AC loads?
Yes. The relay outputs support up to 240 V AC at 2 A.
Q: What is the minimum load for reliable switching?
10 mA at 5 V DC. For very small loads, use a contact protection circuit.
Q: How do I connect the outputs?
Use the removable screw terminal block with 2.5 mm² wires. Pitch is 5.08 mm.
Q: Is the module hot-swappable?
No. Power off the controller before inserting or removing.
Q: What is the maximum cable length?
Unshielded cable up to 30 m for relay outputs.

Experience-based Q&A

Q: The output LED is on but the load does not activate.
Check the external power supply and wiring. The relay contact may be faulty.
Q: Can I use this module with inductive loads?
Yes, but always use a snubber or flyback diode to protect the relay contacts.
Q: How to extend relay life?
Keep switching current below 2 A and use contact protection for inductive loads.

Selection Guide

For AC loads, TM3DQ8R is ideal (supports 240 V AC).
For high-frequency switching, consider transistor output modules (TM3DQ8T).
For space-saving, this 27.4 mm width is very compact.
For harsh environments, it offers wide temperature and vibration tolerance.
For global projects, it has multiple certifications (CE, cULus, UKCA, RCM, EAC).