Schneider Electric TM3DI8 Modicon TM3 Digital Input Module

SKU TM3DI8

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12-month warranty
Free returns within 30 days

Manufacturer: Schneider Electric
Product No.: TM3DI8
Country of origin:France
Product Type: Digital I/O Modules
Payment: T/T, Western Union
Weight: 220g
Dimensions: 12.68 x 10.66 x 7.65 cm
Shipping port: Xiamen
Warranty: 12 months

Description

Designed to expand the discrete I/O capabilities of Modicon M221, M241, and M251 logic controllers, the Schneider Electric TM3DI8 digital input module offers a compact and reliable solution for industrial automation setups. This expansion module provides 8 discrete input channels operating at a nominal 24 V DC with a low current draw of 7 mA per channel, ensuring optimal signal detection and energy efficiency in demanding industrial environments.

The TM3DI8 features sink or source (positive/negative) input logic capabilities, providing system integrators with the flexibility to interface with a wide variety of field sensors and switches. Part of the Modicon TM3 expansion bus system, it easily mounts alongside main controller units, establishing fast bus communication through a lateral bus connector and significantly reducing installation time and cabinet footprint.

Features

8 discrete input channels supporting sink/source (positive/negative) configuration.
Nominal input voltage of 24 V DC for standard industrial sensor compatibility.
Low nominal input current of 7 mA for reduced power consumption.
Fast response times for high-accuracy signal acquisition.
Removable screw terminal block for simplified wiring and maintenance.
Seamless bus connection with Modicon M221, M241, and M251 PLC ranges.

Applications

Packaging and material handling machinery.
Conveyor control and distribution systems.
Water and wastewater processing equipment.
General assembly lines and factory automation.
HVAC control panels and building management systems.

Technical Specifications

Manufacturer	Schneider Electric
Model / Part Number	TM3DI8
Product Range	Modicon TM3
Module Type	Discrete Input Module
Number of Inputs	8
Discrete Input Voltage	24 V DC
Discrete Input Current	7 mA
Input Logic	Sink or Source (Positive/Negative)
Voltage State 1 Guaranteed	At least 15 V for inputs
Current State 1 Guaranteed	At least 2.5 mA
Voltage State 0 Guaranteed	Max 5 V for inputs
Current State 0 Guaranteed	Max 1 mA
Response Time	4 ms (turn-on/turn-off)
Operating Temperature	-10 to 55 Celsius (horizontal installation)
Storage Temperature	-25 to 70 Celsius
Packaged Weight	0.22 kg
Packaged Dimensions	12.68 x 10.66 x 7.65 cm
Commodity Code	85371091

Connections and Interfaces

Terminal Connection	Function Assignment
COM	Common reference terminal for input channels
I0 to I7	Discrete input channels (0 through 7)
Bus Connector	Lateral expansion bus connector for controller linking

Installation Guidelines

Mounting: Mounts securely on a symmetric 35 mm DIN rail (AM1 DE200 or equivalent).
Spacing: Maintain at least 20 mm of clearance at the top and bottom of the module to ensure proper convective cooling.
Wiring: Ensure all power is disconnected before removing or inserting the terminal blocks. Use specified wire sizes and torque specifications for the screw terminals to prevent reliable connection issues.

Compliance and Certifications

CE
cULus Listed
UKCA
RCM

FAQ

What is the primary function of the Schneider Electric TM3DI8 module?

The TM3DI8 is an 8-channel discrete input module designed to expand the input capabilities of Modicon M221, M241, and M251 logic controllers.

Does the TM3DI8 support both sink and source logic?

Yes, the TM3DI8 module supports both sink and source (positive/negative) input logic configurations at a nominal voltage of 24 V DC.

Are the terminals on the TM3DI8 removable?

Yes, the module is equipped with a removable screw terminal block, which simplifies wiring, installation, and replacement.

What are the operating temperature limits for the TM3DI8?

The module operates reliably in ambient temperatures ranging from -10 to 55 Celsius when installed horizontally.

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Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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