General Information
Manufacturer: B&R Industrial Automation

Model Number: X20AT6402

Module Type: 8-channel Analog Input Module (RTD/Thermocouple)

Series: X20 System

Width: 12mm (single-width X20 module)

Mounting: X20 System rail (DIN EN 50022)

Electrical Parameters
Input Specifications
Parameter Specification
Input Type RTD (Pt100/Pt1000) or Thermocouple (J/K/T/E/R/S/N)
Channels 8 (galvanically isolated)
Resolution 16-bit (0.1°C for RTD, 1°C for TC)
Measurement Accuracy ±0.2% FS (RTD), ±1°C (TC)
Input Range (RTD) Pt100: -200°C to +850°C
Input Range (TC) Type K: -200°C to +1372°C
Excitation Current 0.5mA (RTD mode)
Common-Mode Rejection >120dB @ 50/60Hz
Power Supply
Parameter Specification
Supply Voltage 24V DC (via X20 bus)
Power Consumption 1.8W (typical)
Isolation 500V AC (channel-to-bus)
Performance Characteristics
Sampling Rate: 10ms per channel (all 8 channels)

Filtering: Configurable software filter (1-100Hz)

Burnout Detection: Supported (open-circuit detection)

Cold Junction Compensation: Integrated (for thermocouples)

Mechanical & Environmental Specs
Parameter Specification
Dimensions (W×H×D) 12 × 100 × 64 mm
Weight ~90g
Connection Removable screw terminal block
Wire Size 0.14–2.5mm² (AWG 26–14)
Operating Temp. 0°C to +55°C
Humidity 5–95% (non-condensing)
Protection Class IP20
Functional Features
✔ Dual-mode operation (RTD or Thermocouple per channel)
✔ Automatic sensor type detection (via software)
✔ Per-channel configuration (B&R Automation Studio)
✔ Diagnostic LEDs (channel status & errors)
✔ Hot-swappable (during operation)

Certifications & Compliance
Safety: UL 61010-1, EN 61131-2

EMC: EN 61000-6-2/-4

Standards: IEC 60751 (RTD), IEC 60584 (TC), RoHS, CE

Ordering Information
Base Model: X20AT6402

Accessories:

Terminal blocks (X20 TB*)

Labeling strips

Typical Applications
Temperature monitoring in process control

HVAC systems

Food & beverage production

Plastic molding machines

Note: For sensor wiring diagrams and accuracy tables, refer to B&R X20 System Manual (BRP9400). Cold junction compensation requires ambient temperature measurement (X20 system ambient sensor recommended).