Schneider TM3DI16G Discrete Input Module, Modicon TM3, 16 Inputs 24VDC

The Schneider Electric TM3DI16G is a discrete digital input module in the Modicon TM3 series, designed to expand the I/O capacity of compatible Modicon controllers. It provides 16 digital inputs at 24 V DC with a response time of 4 ms, making it suitable for fast, reliable signal acquisition in automation systems.

Technical specifications:

• Commercial reference: TM3DI16G
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Modicon TM3
• Product type: Digital input module
• Compatible controllers: Modicon M221, M241, M251, M262
• Number of digital inputs: 16 (IEC 61131-2 Type 3)
• Input logic: Sink or source (positive/negative)
• Input voltage: 24 V DC
• Input current: 7 mA per input
• Guaranteed state 1 voltage: 15...28.8 V
• Guaranteed state 1 current: >= 2.5 mA
• Guaranteed state 0 voltage: 0...5 V
• Guaranteed state 0 current: <= 1 mA
• Input impedance: 3.4 kO
• Response time: 4 ms (on), 4 ms (off)
• Bus current consumption: 40 mA at 5 V DC (ON state), 5 mA at 5 V DC (OFF state)
• Connection type: Removable spring terminal, 10 x 1.5 mm², 3.81 mm pitch
• Max cable length (unshielded): less than 50 m
• Isolation: Between inputs and internal electronics at 500 V AC; inputs not isolated from each other
• Local indication: 1 green LED per channel (input status)
• Mounting: TH35-7.5 or TH35-15 DIN rail (IEC 60715), or panel with mounting kit
• Width: 27.4 mm
• Height: 90 mm
• Depth: 84.6 mm
• Weight: 0.1 kg
• IP rating: IP20 (with protective cover in place)
• Pollution degree: 2
• Operating temperature: -10...35 °C (vertical installation), -10...55 °C (horizontal installation)
• Storage temperature: -25...70 °C
• Relative humidity: 10...95%, non-condensing
• Vibration resistance: 3.5 mm at 5...8.4 Hz, 3 gn at 8.4...150 Hz (DIN rail and panel)
• Shock resistance: 15 gn for 11 ms
• ESD immunity: 8 kV air, 4 kV contact (IEC 61000-4-2)
• Certifications: CE, cULus, cULus HazLoc, UKCA, RCM, EAC
• Standard: IEC 61131-2

Features and benefits:

• 16 IEC 61131-2 Type 3 digital inputs in a compact 27.4 mm wide housing, maximising panel space efficiency.
• Sink or source input logic supports both positive and negative wiring configurations without hardware changes.
• Removable spring-clamp terminals allow fast, tool-free wiring and simplified maintenance.
• Per-channel green LED status indicators provide immediate visual diagnostics without additional tooling.
• Flexible DIN rail or panel mounting suits a wide range of enclosure types and installation orientations.
• Wide operating temperature range up to 55 °C in horizontal installation suits demanding industrial environments.

Applications:

• Expanding digital input capacity on Modicon M221, M241, M251, and M262 controllers in machine automation.
• Connecting pushbuttons, limit switches, and sensors in production line control panels.
• Building automation and process control systems requiring high channel-count discrete signal acquisition.
• Industrial cabinet installations where compact form factor and DIN rail mounting are required.

Compliant with IEC 61131-2. Part of the Schneider Electric Modicon TM3 range.

Also known as: Schneider TM3DI16G, Schneider Electric TM3DI16G, TM3 digital input module, Modicon TM3 I/O expansion module.