TM3DI16 16-Channel Discrete Input Module 24V DC Screw Terminal | Schneider Electric

The Original New Schneider Electric TM3DI16 is a 16-channel discrete input module for the Modicon TM3 I/O system, designed to expand the digital input capacity of Modicon M221, M241, M251, and M262 logic controllers. It provides 16 logic inputs for 24V DC signals (sink/source configurable) with a removable screw terminal block for secure field wiring. Engineered for reliable industrial signal acquisition, the module is the screw terminal version of the TM3DI16 series — the spring terminal variant is available as TM3DI16G. Part of the Modicon TM3 expansion family, it features a simple interlocking assembly mechanism for quick DIN rail mounting.

Core Engineering Highlights:
16 digital inputs (24V DC, Type 1 per IEC/EN 61131-2) | Sink/source configurable logic | 7 mA typical input current | 3.4 kΩ input impedance | 4 ms turn-on / 4 ms turn-off response time | Removable screw terminal block (3.81 mm pitch) | 500V AC isolation (input to internal logic) | IP20 protection | –10°C to +55°C operating temperature | 27.4 mm width

Key Features:

• Original New Schneider Electric TM3DI16 module

• 16 discrete input channels (Type 1 per IEC/EN 61131-2)

• 24V DC rated input voltage, sink/source configurable

• Removable screw terminal block for secure and easy wiring

• One common line across all 16 channels

• 4 ms turn-on / 4 ms turn-off response time

• Green LED per channel for input status indication

• Simple interlocking assembly with Modicon TM3 controllers

• DIN rail mounting (35 mm, TH35-7.5 or TH35-15)

• IP20 protection with protective cover in place

• CE, cULus, UKCA, RCM, EAC certified

Applications:

• Digital signal acquisition from sensors, pushbuttons, and limit switches

• Machine automation and control panel expansion

• Conveyor and material handling systems

• Packaging machinery and assembly lines

• OEM equipment requiring Modicon TM3 I/O expansion

• Factory automation and process control systems

Technical Specifications:

System Compatibility:

• Schneider Electric Modicon M221 logic controllers

• Modicon M241 logic controllers

• Modicon M251 logic controllers

• Modicon M262 logic controllers

• EcoStruxure Machine Expert (formerly SoMachine) programming software

• Modicon TM3 I/O expansion bus

Related Products:

• TM3DI16G – Spring terminal version of the 16-input module

• TM3DI8 – 8-channel discrete input module

• TM3DQ16T – 16-channel transistor output module (PNP)

• TM3DQ16R – 16-channel relay output module

• TM3AI8 – 8-channel analog input module

• TM3AQ4 – 4-channel analog output module

• TM3TI4 – 4-channel temperature input module

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Schneider Electric, Modicon, and EcoStruxure are trademarks of Schneider Electric SE.