TM3DI8 | Schneider Electric | Discrete Input Module

Description

The Schneider Electric TM3DI8 is a discrete input module from the Modicon TM3 series, designed to expand the input capacity of Modicon M221, M241, M251, and M262 controllers. It offers 8 digital inputs with sink or source logic, making it ideal for compact automation systems requiring reliable signal acquisition from sensors and switches.

Specifications

• Product Series: Modicon TM3

• Input Type: Discrete (sink/source logic, IEC 61131-2 Type 1)

• Number of Inputs: 8

• Input Voltage: 24 V DC

• Input Current: 7 mA

• Voltage Thresholds:

  • State 1: 15–28.8 V (≥2.5 mA)

  • State 0: 0–5 V (≤1 mA)

• Input Impedance: 3.4 kΩ

• Response Time: 4 ms (on/off)

• Local Signaling: 1 green LED per channel

• Electrical Connection:

  • Removable screw terminal block

  • Pitch: 5.08 mm

• Current Consumption:

  • 5 V DC: 5 mA (off), 24 mA (on)

  • 24 V DC: 0 mA

• Cable Distance: Up to 30 m (unshielded)

• Insulation:

  • Input to internal logic: 500 V AC

  • No insulation between inputs

• Mounting:

  • DIN rail (TH35-15 or TH35-7.5)

  • Panel mount with fixing kit

• Dimensions:

  • Width: 27.4 mm

  • Depth: 84.6 mm

  • Height: 90 mm

• Weight: ~0.085 kg

• Operating Temp: –10°C to +55°C (horizontal), –10°C to +35°C (vertical)

• Storage Temp: –25°C to +70°C

• Humidity: 10–95% RH (non-condensing)

• Altitude: Up to 2000 m (operation), 3000 m (storage)

• Protection: IP20

• Certifications: CE, cULus, UKCA, RCM, EAC

• Environmental Compliance: RoHS, REACh, Green Premium product