Schneider TM2DRA16RT Relay Output Module 16 Channels

Schneider Electric TM2DRA16RT Discrete Output Module for Modicon M238

Product Introduction

The Schneider Electric TM2DRA16RT expands your Modicon M238 controller with 16 reliable relay outputs. Each output channel uses a 1 NO (normally open) relay configuration. You can switch both AC and DC loads because relays work with either current type. Furthermore, each channel supports up to 2A of continuous current. The Schneider Electric TM2DRA16RT also features a removable screw terminal block. This design lets you pre-wire the module offline, saving installation time. Additionally, the unit mounts on a standard 35mm DIN rail, just like other Modicon components. Therefore, integrating this module into your existing panel is straightforward.

Technical Specifications

Manufacturer Schneider Electric builds the TM2DRA16RT for the Modicon M238 logic controller family. This discrete output module provides exactly 16 relay-type outputs. Each output functions as a single-pole normally open contact. The maximum current per channel reaches 2A, while each common point handles up to 8A. Moreover, the module uses two common points, so you can split your loads into two isolated groups. Contact resistance stays below 45 milliohms, ensuring efficient power transfer. For isolation, the TM2DRA16RT offers 1500V between channels and 2300V between channels and internal logic. Therefore, your control system remains protected from load-side faults.

Electrical Performance and Response Times

The Schneider Electric TM2DRA16RT responds quickly to logic commands. The turn-on time from state 0 to state 1 is 10 milliseconds or less. Meanwhile, the turn-off time from state 1 to state 0 is even faster at 5 milliseconds or less. For minimum switching, this module works with loads as small as 0.1mA at 0.1V DC. Thus, you can control tiny signals like LED indicators without issues. The relay contacts mechanically endure up to 20 million cycles without load. Under electrical load, durability depends on your specific application. For instance, at 2A resistive load on 240V AC, you get 100,000 cycles. Similarly, at 1A inductive load on 24V DC, the rating remains 100,000 cycles.

Environmental and Mechanical Ratings

The TM2DRA16RT operates reliably within standard industrial conditions. Its dimensions are compact: 90mm height, 27.3mm width, and 84.6mm depth. Therefore, this module takes up very little space on your DIN rail. The product weight is only 0.145kg, so it adds minimal mass to your cabinet. For installation, you need a 35mm symmetrical DIN rail. Furthermore, the Schneider Electric TM2DRA16RT belongs to the Green Premium product family. It complies with RoHS since date code 1039, and it contains no SVHC above the REACh threshold. For end-of-life processing, Schneider provides product environmental profiles and disposal instructions.

Local Signalling and Status Indication

The Schneider Electric TM2DRA16RT includes a built-in display block for local signalling. This feature shows you the status of each output channel at a glance. Consequently, you can quickly identify which relays are active without connecting a programming laptop. The display block also helps during troubleshooting because you can see if the module is receiving power. Additionally, the TM2DRA16RT draws only 30mA from the 5V DC supply when all outputs are on. For the 24V DC internal logic supply, consumption is 40mA under the same condition. Thus, this module places a very light load on your system power supply.

Installation Guidelines for the TM2DRA16RT

Before you start, turn off all power to your Modicon M238 system. First, mount the Schneider Electric TM2DRA16RT onto a 35mm DIN rail. Push the module upward and then press it against the rail until it clicks. Next, slide it to the left to connect with adjacent modules or the CPU. For wiring, remove the screw terminal block from the module body. This step lets you wire comfortably at your workbench. Then, connect your load wires to the appropriate terminals according to the label. Each output common can handle up to 8A total. For example, if you use all eight outputs on one common, keep each channel below 1A. After wiring, push the terminal block back onto the TM2DRA16RT until it locks. Finally, power up your system and test each output individually.

Why Choose This 16-Channel Relay Output Module?

Many automation projects need to switch mixed AC and DC loads. For instance, you might run a 24V DC indicator light and a 230V AC contactor from the same module. The Schneider Electric TM2DRA16RT handles both without any extra components. Additionally, the relay outputs provide true electrical isolation between the logic side and the field side. This feature protects your expensive Modicon M238 CPU from voltage spikes and short circuits. Because the terminal block is removable, you can replace the TM2DRA16RT without unwiring a single cable. Therefore, maintenance becomes much faster and less error-prone. Moreover, the high mechanical durability of 20 million cycles suits applications with frequent switching, such as pulse control or positioning systems.

Compatibility and System Integration

The TM2DRA16RT works primarily with the Modicon M238 logic controller. However, it also offers compatibility with Advantys OTB and Twido product lines. Therefore, you can use this module across multiple Schneider platforms. For addressing, the Schneider Electric TM2DRA16RT automatically maps its 16 outputs to consecutive bits in the I/O image table. You do not need any special configuration files or jumpers. The two commons allow you to mix different voltage groups safely. For example, connect common 1 to 24V DC for eight outputs and common 2 to 230V AC for the remaining eight outputs. Just remember that each common's total current cannot exceed 8A.

Packaging List

• Schneider Electric TM2DRA16RT Discrete Output Module (one unit)

• Removable screw terminal block (pre-attached, one piece)

• Terminal identification label (one sheet)

• DIN rail locking clip (built-in)

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

Shipping and Delivery

We ship all orders via FedEx, UPS, or DHL. Therefore, you receive your TM2DRA16RT quickly and safely. Each unit is packed in anti-static bubble wrap to prevent damage during transit.

Frequently Asked Questions (FAQ)

1. Can the Schneider Electric TM2DRA16RT switch 230V AC loads directly?
Yes, the relay outputs are rated for 240V AC. For resistive loads at 2A, you get 100,000 electrical cycles.

2. What is the difference between mechanical and electrical durability?
Mechanical durability (20 million cycles) applies with no current passing through the contacts. Electrical durability (100,000 cycles) applies under full load. Therefore, switching unloaded signals lasts much longer.

3. Do I need external fuses for each output on the TM2DRA16RT?
Schneider Electric recommends using external fuses for protection. Each common point can supply up to 8A, so a 8A slow-blow fuse per common is a good practice.

4. How do I know if the TM2DRA16RT is communicating with my Modicon M238?
The built-in display block shows status. Additionally, if the module does not appear in your software configuration, check that you have properly expanded the bus to the right.

5. Can I use this module with a 5V DC logic signal from a non-Schneider PLC?
The Schneider Electric TM2DRA16RT requires a Modicon M238 bus for communication. It is not a stand-alone relay board. Therefore, you need the correct Schneider backplane or CPU to control it.