Endress+Hauser TTR31-A1C111AA2EAB Temperature Switch | 150°C, 4-20mA, IP66 Specs

Endress+Hauser TTR31-A1C111AA2EAB temperature switch specifications. 150°C range, 4-20mA analog output, IP66 protection, G1/2" thread. For industrial process monitoring.

Endress+Hauser TTR31-A1C111AA2EAB Temperature Switch

The Endress+Hauser TTR31-A1C111AA2EAB is a Thermophant T TTR31 series temperature switch designed for industrial process monitoring and control applications. It combines temperature sensing with switching functionality and analog output in a compact, IP66-rated housing suitable for harsh industrial environments.

Key Features

• Dual Output:​ Switch output for alarm/control functions plus 4-20mA analog output for continuous monitoring.

• High Protection:​ IP66 rating ensures reliable operation in wet and dusty environments.

• Compact Design:​ Space-efficient installation with G1/2" process connection.

• Integrated Electronics:​ Built-in transmitter eliminates need for external signal conditioning.

Technical Specifications

Model Number Decoding (TTR31-A1C111AA2EAB)

• TTR31:​ Series identifier for temperature switches

• A1:​ Process connection variant (G1/2" thread)

• C1:​ Sensor type and probe length code

• 11:​ Output configuration (switch + analog)

• AA:​ Additional options and materials

• 2EAB:​ Specific variant code (includes HART, IP66, etc.)

Typical Applications

• Process temperature monitoring in chemical plants

• Over-temperature protection in machinery

• HVAC and building automation systems

• Food and beverage processing

• Water and wastewater treatment

Important Selection & Installation Notes

1. Configuration Required:​ The switch point, hysteresis, and output functions must be configured using HART communicator or Endress+Hauser configuration software before use.

2. Insertion Length:​ Verify the 200mm insertion length is suitable for your process pipe/vessel dimensions.

3. Process Compatibility:​ Ensure 316L stainless steel is compatible with your process media to avoid corrosion.

4. Electrical Connection:​ The M12 connector requires a compatible mating connector for field wiring.

5. Calibration:​ Periodic calibration is recommended for critical applications to maintain measurement accuracy.

Note: Specifications are based on the TTR31 series data. The exact configuration for this specific order code may include additional options. For complete technical data, dimensional drawings, and configuration procedures, consult the official Endress+Hauser TTR31 Technical Manual​ or use the Endress+Hauser Device Viewer tool.