The Schneider Electric TM3DM8R is an 8-channel mixed digital I/O module from the Modicon TM3 distributed I/O system. This module provides a combination of 4 digital inputs and 4 relay outputs in a single compact unit, offering flexibility for applications requiring both sensor monitoring and load control. The relay outputs feature Form C (changeover) contacts for switching AC/DC loads with isolation.
Parameters
Parameter Category Details
Model TM3DM8R
Series Modicon TM3
Product Type 8-Channel Mixed Digital I/O Module (4 Inputs + 4 Relay Outputs)
Digital Inputs 4 channels, 24V DC, sink/source compatible
Relay Outputs 4 channels, Form C contacts (1 NO + 1 NC per channel)
Relay Rating 250V AC / 30V DC, 2A per contact
Electrical Endurance Typically 100,000 operations at rated load
Isolation 1500V AC (coil to contacts), 500V AC between field and logic sides
Status Indicators Module status LED, per-channel I/O status LEDs
Power Supply 24V DC via TM3 base unit (relay coils powered from this supply)
Mounting TM3 base unit on DIN rail (35mm)
Typical Applications Small control panels requiring both sensor inputs and relay outputs for devices like solenoid valves, contactors, indicators in packaging, material handling, or HVAC control