Schneider TM3DI8 Modicon TM3 Discrete Input Module 8 Channels Screw

Schneider Electric Modicon TM3DI8 is a digital input module with 8 channels for 24 V DC sink/source signals. Screw terminal block. Part of the TM3 I/O expansion family for Modicon M221, M241, M251, and M262 controllers.

Applications:

• Digital signal acquisition from sensors and pushbuttons

• Machine automation and control panel expansion

• Conveyor and packaging equipment

• Industrial I/O systems

Core Specifications:

• Number of inputs: 8

• Input voltage: 24 V DC (sink/source, type 1)

• Input current: 7 mA typical

• Input delay: configurable 0.2…12.8 ms

• Isolation: 1500 V AC between inputs and backplane

• Connection: Screw terminal block (fixed)

• Supply voltage: 24 V DC via TM3 bus

Advanced Specifications:

• Diagnostics: per channel status LED, module error LED

• Protection: reverse polarity protection

• Power consumption: from backplane and external supply

• Protection rating: IP20

• Dimensions (W × H × D): approx. 31.3 × 90 × 70 mm

• Weight: approx. 0.11 kg

• Operating temperature: -10…55 °C

System Integration:

• Compatible with Modicon M221, M241, M251, M262 controllers via TM3 expansion bus.

• Configured in EcoStruxure Machine Expert Basic or SoMachine Basic.

Related Products (upgrade path):

• Lower channel count → TM3DI8 (8 inputs, this model)

• Higher channel count → TM3DI16 (16 inputs, screw terminal)

• Alternative spring terminal → TM3DI8G (8 inputs, spring terminal)

• Complementary → TM3DQ8T (8 transistor outputs)