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B&R 3AT660.6 Temperature Module

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B&R 3AT660.6 Temperature Module
May 27, 2026

B&R 3AT660.6 Temperature Module

The 3AT660.6 is a high-density thermocouple temperature input module in the B&R SYSTEM 2005 series, engineered for precise multi-point temperature measurement in industrial environments. It features 8 input channels divided into two galvanically isolated groups, supporting Type J, K, and L thermocouples with a measurement range from -200 °C to +1300 °C. With galvanic isolation between field and control sides, robust EMC performance, and integrated cold-junction compensation, the module delivers stable, accurate thermal data even under harsh electrical interference. It converts low-level thermocouple millivolt signals into high-resolution digital values for the PLC, serving as a reliable, cost-effective solution for high-channel-count temperature monitoring and control in process and factory automation.

Description

B&R 3AT660.6 Temperature Module

Product Introduction

The 3AT660.6 is a high-density thermocouple temperature input module in the B&R SYSTEM 2005 series, engineered for precise multi-point temperature measurement in industrial environments. It features 8 input channels divided into two galvanically isolated groups, supporting Type J, K, and L thermocouples with a measurement range from -200 °C to +1300 °C. With galvanic isolation between field and control sides, robust EMC performance, and integrated cold-junction compensation, the module delivers stable, accurate thermal data even under harsh electrical interference. It converts low-level thermocouple millivolt signals into high-resolution digital values for the PLC, serving as a reliable, cost-effective solution for high-channel-count temperature monitoring and control in process and factory automation.

Basic Information

  • Model: 3AT660.6

  • Brand: B&R (Bernecker + Rainer, ABB Group)

  • Series: SYSTEM 2005

  • Product Type: Thermocouple Temperature Input Module

  • Input Channels: 8 channels, 2 galvanically isolated groups (4 channels per group)

  • Supported Sensors: Type J (Fe-CuNi), Type K (NiCr-Ni), Type L (FeCuNi) thermocouples

  • Measuring Range: Type J (-200 °C to +950 °C), Type K (-200 °C to +1300 °C), Type L (-200 °C to +900 °C)

  • Raw Signal Range: -15 mV to +55 mV

  • Power Supply: 5 VDC from backplane; 24 VDC field power

  • Power Consumption: 6.0 W (4.75 W @24 VDC, 1.25 W @5 VDC)

  • Protection Class: IP20

  • Operating Temperature: 0 °C to +60 °C

  • Storage Temperature: -25 °C to +70 °C

  • Relative Humidity: 5%–95%, non-condensing

  • Isolation Voltage: 2500 VAC (field to control)

  • Certifications: CE, UL, EAC, UKCA

  • Installation: Standard single slot for SYSTEM 2005 racks, DIN rail mountable

  • Compatible Terminal Block: 3TB170.9 (screw clamp) / 3TB170.91 (cage clamp), sold separately

Function and Positioning

The 3AT660.6 functions as the dedicated high-density thermal interface between J/K/L thermocouples and B&R SYSTEM 2005 controllers. It captures low-level voltage signals generated by thermocouples, performs internal or external cold-junction compensation, and converts the data into precise digital temperature values for the PLC. The two-group isolation minimizes cross-channel interference, while support for three common thermocouple types ensures broad application flexibility. Positioned as a cost-effective, high-channel-count temperature input module, it is ideal for systems requiring multiple-point thermal monitoring, data logging, or closed-loop temperature control in process industries and general factory automation.

Core Performance Parameters

  • Sensor Types: Type J (-200 to +950 °C), Type K (-200 to +1300 °C), Type L (-200 to +900 °C)

  • Number of Inputs: 8 channels, 2 isolated groups

  • Resolution: Internal >14-bit (23841 internal ADC values at 20 ms)

  • Basic Accuracy: Type J/L ±0.5% of full scale at 25 °C; Type K ±0.8% of full scale at 25 °C

  • Temperature Drift: ±20 ppm/°C

  • Conversion Time: 16.67 ms (measurement only); 116.68 ms (with internal cold-junction compensation)

  • Common-Mode Rejection: >85 dB at 50/60 Hz

  • Input Impedance: >10 MΩ

  • Cold-Junction Compensation: Internal (-20 °C to +80 °C) or external (-100 °C to +200 °C)

  • Filter: Software-configurable digital filter (5 Hz to 500 Hz)

  • Status Indicators: RUN LED (module status), CH LEDs (channel activity)

  • Diagnosis: Open-circuit detection, out-of-range alarm, sensor fault monitoring

  • EMC Compliance: EN 61000-6-2, EN 61000-6-4

  • Configuration: Via B&R Automation Studio V4.x+

General Compatible Accessories

  • B&R SYSTEM 2005 backplanes and expansion racks

  • SYSTEM 2005 CPU modules and X2X bus-compatible I/O modules

  • 24 VDC industrial power supplies (e.g., 0PS105.1, 0PS205.1)

  • Shielded thermocouple extension cables (Type J/K/L specific)

  • 3TB170.9 (screw clamp) / 3TB170.91 (cage clamp) terminal blocks

  • B&R Automation Studio V4.x+ for configuration and diagnostics

  • Industrial-grade Type J, K, and L thermocouple probes

Applicable Equipment Fields

  • Process Industry: Chemical, pharmaceutical, food & beverage, water treatment, pulp & paper (multi-point temperature monitoring)

  • Factory Automation: Plastics machinery, packaging equipment, textile machines, automotive assembly lines, metalworking

  • Energy Sector: Power plant auxiliary systems, renewable energy, HVAC, boiler and furnace control

  • Industrial Furnaces & Ovens: Thermal processing, heat treatment, kiln monitoring

  • Building Automation: Clean rooms, environmental monitoring, thermal management systems

  • Industrial Sites: Areas with electromagnetic interference, vibration, and wide temperature fluctuations

  • SYSTEM 2005-based automation projects requiring 8-channel J/K/L thermocouple temperature input


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