Belimo EXT-T24-D201 LCD Temperature Controller Modulating Thermostat - AC 24 V, Output 0(4)...20 mA, 0...10 V or 2...10 V

Product Overview

• Modern LCD temperature controller for single-room climate control

• Designed for 2-pipe HVAC systems

• Offers energy efficiency and reliable temperature regulation

Key Features

• LCD display with green backlight for clear visibility

• Supports multiple output options:

  • DC 2–10V (factory default)

  • DC 0–10V

  • 4–20mA (600Ω)

  • 0–20mA (600Ω)

• Adjustable:

  • Proportional band (P-band)

  • Integral time (I-time)

  • Setpoint range

• Sleep mode for energy saving

• Last status memory function retains settings after power loss

• Built-in and external sensor included

• Low temperature protection function

Technical Specifications

• Power Supply: AC 24V 50/60Hz (±10%)

• Power Consumption: <1W @ AC 24V

• Temperature Range:

  • Display: 0 to 99.5°C

  • Setpoint: 0 to 99.5°C, 0.5°C steps

• Control Modes: On/Off, Cooling, Heating, Sleeping

• Adjustable Parameters:

  • Proportional Band: 1K to 20K (default 2K)

  • Integral Time: 10–300s (default 90s)

  • Display Offset: ±20K (default 0)

  • Heating Setpoint: 0 to 99.5°C (default 35°C)

  • Cooling Setpoint: 0 to 99.5°C (default 5°C)

  • Sleep Mode Setpoints: Cooling (28°C), Heating (7°C)

• Sensor Type:

  • Internal: NTC thermistor, 10kΩ @ 25°C

  • External: Probe-type NTC thermistor, 10kΩ @ 25°C

• Connections: Screw terminals, max 1.0mm² (18 AWG)

• Material: Flame-retardant PC + ABS

• Dimensions: 86 x 86 x 23 mm (LxWxH)

• Mounting: Wall-mounted, 60mm vertical screw spacing

• Weight: 225g

• Protection Rating: IP20

• Humidity Tolerance: Max. 90% RH, non-condensing

• Compliance: CE marked, EMC Directive compliant

Special Function

• Low Temperature Protection: Automatically activates heating mode if ambient temp < 5°C (even when off), deactivates at 7°C