Schneider Electric TM3TI8T - Technical Specifications
1. General Information
Product Type: 8-channel Thermocouple Input Module

Series: Modicon TM3 Modular I/O System

Model Number: TM3TI8T

Status: Active Product

Certifications: CE, UL, RoHS compliant

2. Input Characteristics
Input Channels: 8 isolated channels

Supported Thermocouple Types: J, K, T, E, R, S, B, N

Measurement Range:

Type J: -210°C to +1200°C

Type K: -270°C to +1372°C

Type T: -270°C to +400°C

Type E: -270°C to +1000°C

Type R/S: -50°C to +1768°C

Type B: +250°C to +1820°C

Type N: -270°C to +1300°C

Resolution: 16-bit (0.1°C resolution)

Accuracy: ±0.1% of full scale (typical)

Sampling Time: 10ms per channel (all channels)

Input Impedance: >1MΩ

3. Cold Junction Compensation
CJC Accuracy: ±1°C

CJC Sensor: Integrated per channel

4. Electrical Specifications
Isolation:

600V AC between channels and bus

300V AC between channels

Common Mode Rejection: >120dB at 50/60Hz

Normal Mode Rejection: >60dB at 50/60Hz

5. Power Requirements
Supply Voltage: 24V DC (via TM3 base)

Power Consumption: 1.5W (typical)

Current Consumption: 70mA @ 24V DC

6. Physical Characteristics
Dimensions: 90 x 23.6 x 70mm (H x W x D)

Weight: 0.15kg

Mounting: DIN rail (35mm)

Connection: Removable screw terminal block

7. Environmental Specifications
Operating Temperature: -20°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95% (non-condensing)

Vibration Resistance: 1g (10-150Hz)

Shock Resistance: 5g (11ms duration)

Altitude: ≤2000m

8. Indicators
Module Status LED: Green (power)/Red (fault)

Channel Status LEDs: Green (per channel)

9. Compatibility
PLC Systems:

Modicon TM3 controllers

Modicon M221/M251 Logic Controllers

Base Unit Requirement: TM3BET7 or compatible

Configuration Software: EcoStruxure Machine Expert

10. Standards Compliance
EMC: EN 61326-1, EN 61000-6-2, EN 61000-6-4

Safety: UL 508, IEC 61131-2

11. Ordering Information
Catalog Number: TM3TI8T

Accessories:

TM3BET7 (Base Unit)

TM3ACBL1 (Connection Cable)

12. Typical Applications
Industrial process monitoring

Temperature control systems

HVAC equipment

Food processing

Laboratory instrumentation