Schneider TM3TI8T Analog Input Module, Modicon TM3, 8 Temperature Inputs 24VDC

The Schneider Electric TM3TI8T is an analog input module in the Modicon TM3 series, providing 8 independent temperature inputs via thermocouple or thermistor sensors. It supports nine thermocouple types (J, K, R, S, B, T, N, E, C) and NTC/PTC thermistors, covering measurement ranges from -200 °C to 2315 °C. Compatible with Modicon M221, M241, M251, and M262 controllers via direct bus expansion.

Technical specifications:

• Commercial reference: TM3TI8T
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Modicon TM3
• Number of inputs: 8 temperature inputs
• Input types: Thermocouple J, K, R, S, B, T, N, E, C; NTC 10k thermistor (-90...150 °C); PTC thermistor (100...10000 Ohm)
• Resolution: 16 bits (15 bits + sign)
• Conversion time: 100 ms + 100 ms per channel + 1 controller cycle
• Accuracy: +/- 0.2 %FS at 25 °C (type and range dependent)
• Temperature drift: +/- 0.01 %FS/°C
• Supply voltage: 24 V DC (20.4...28.8 V)
• Current consumption: 30 mA at 24 V DC
• Connection: 10 x 1.5 mm² removable screw terminal block, 3.81 mm pitch
• Isolation: 1500 V AC (inputs to supply), 500 V AC (inputs to internal electronics)
• Mounting: DIN rail TH35-7.5 / TH35-15 per IEC 60715, or panel
• Dimensions (WxHxD): 23.6 x 90 x 70 mm
• Weight: 0.11 kg
• IP rating: IP20
• Operating temperature: -10...55 °C horizontal, -10...35 °C vertical
• Storage temperature: -25...70 °C
• Certifications: CE, UKCA, RCM, EAC, cULus, cULus HazLoc
• Standard: IEC 61131-2

Features and benefits:

• Nine thermocouple types plus NTC and PTC thermistors for flexible multi-sensor temperature acquisition
• 16-bit resolution delivers precise readings across wide temperature ranges up to 2315 °C
• Galvanic isolation at 1500 V AC between inputs and power supply for enhanced safety
• Compact 23.6 mm wide DIN rail housing with plug-in screw terminals for space-efficient installation
• Certified for hazardous locations via cULus HazLoc

Applications:

• Multi-point temperature monitoring in industrial automation and process control panels
• Expanding Modicon M221, M241, M251, and M262 PLCs with dedicated thermal data acquisition
• HVAC and building management systems requiring multiple simultaneous temperature sensor inputs
• High-temperature process monitoring such as furnace, kiln, or oven control

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

Also known as: Schneider TM3TI8T, Schneider Electric TM3TI8T, TM3 thermocouple input module, Modicon temperature acquisition module.