Schneider TM2DRA8RT Discrete Output Module

TM2DRA8RT Relay Output Module by Schneider

Product Introduction

The Schneider Electric TM2DRA8RT is a reliable I/O expansion module. It works with the Modicon M238 logic controller and Twido systems. This unit gives you 8 discrete relay outputs. Each channel handles up to 2A of current. The module also features two common points with a 7A maximum per common.

You can use this module for many switching applications. It supports both AC and DC loads. For example, it works with resistive loads up to 240V AC or 30V DC. The response time is very fast. It turns on in ≤10 ms and off in ≤5 ms. Additionally, the TM2DRA8RT offers strong isolation. Between channels, you get 1500V for one minute. Between outputs and internal logic, you get 2300V.

This module is easy to install. It mounts on a 35mm DIN rail. The removable screw terminal block makes wiring simple. Local signaling is also included. One display block shows the output status. Therefore, troubleshooting becomes faster.

Technical Specifications

Discrete Output Type: Relay, 1 NO contact per output
Current per Channel: 2A
Maximum Current per Common: 7A (2 common points)
Contact Resistance: 45 mOhm
Response Time: ≤10 ms (0→1), ≤5 ms (1→0)
Minimum Switching Current: 0.1 mA at 0.1V DC
Isolation (Channel to Channel): 1500V for 1 minute
Isolation (Channel to Logic): 2300V for 1 minute
Electrical Durability: 100,000 cycles at 2A resistive (240V AC or 30V DC)
Mechanical Durability: 20 million cycles
Current Consumption: 30mA at 5V DC, 40mA at 24V DC (all outputs on)

Mechanical & Environmental Data

Mounting Support: 35mm symmetrical DIN rail
Electrical Connection: 1 removable screw terminal block
Local Signalling: 1 display block
Product Weight: 0.11 kg (0.24 lb)
Dimensions (H x W x D): 90 mm x 27.3 mm x 84.6 mm
Package Dimensions: 7.5 cm x 10.5 cm x 12.5 cm

Installation Guidelines

First, turn off all power before you start. Mount the TM2DRA8RT on a 35mm DIN rail. Snap it into place until it clicks. Next, connect the removable screw terminal block. Wire each output according to your load requirements. Use the two common points to separate different voltage groups.

Then, connect the module to your Modicon M238 or Twido controller. The module communicates automatically. Finally, apply power and check the local display block. Each output LED shows the on/off state. Remember to use proper fuse protection for each output.

Packaging List

• 1 x Schneider Electric TM2DRA8RT discrete output module

• 1 x Removable screw terminal block

• 1 x Product documentation leaflet

Note: No certificates or warranty documents are included in the package.

Shipping

We ship worldwide via Fedex, UPS, or DHL. All orders are processed within 24 hours.

Frequently Asked Questions (FAQ)

1. Which controllers work with the TM2DRA8RT?
This module works with the Modicon M238 logic controller and the Twido series. It is also compatible with Advantys OTB.

2. Can I mix AC and DC loads on the same module?
Yes, you can. However, use separate common points for AC and DC loads. This prevents interference and ensures safe operation.

3. How do I know if an output is stuck or failed?
Check the local display block on the module. Each output has a dedicated LED. If the LED is on but the load does not work, measure the contact resistance. Normal resistance is 45 mOhm.

4. What is the lifespan of the relay outputs?
The mechanical lifespan is 20 million cycles. The electrical lifespan depends on the load. For resistive loads at 2A, you get 100,000 cycles.

5. Is the TM2DRA8RT hot-swappable?
No, you cannot swap this module while power is on. Always turn off the system before you remove or install the TM2DRA8RT. This prevents damage to the module and the controller.