Temperature controller from -10 to 90°C, single-module, with hysteresis setting 0.25 - 2.5°C RTM-03 EXT10000251

Temperature controller RTM-03 – precise temperature control in your home

The RTM-03 temperature controller is a device designed for automatic temperature regulation in rooms and heating systems. It provides thermal comfort by controlling receivers such as radiators or underfloor heating, depending on the ambient temperature measured by an external NTC probe (available separately). The device is characterized by a wide temperature setting range and adjustable hysteresis, allowing for precise adjustment to individual needs.

Functionality and application

RTM-03 is an ideal solution for both installers and end users. Mounted on a TH 35 rail, the controller is easy to install and configure. It allows temperature control in the range of -10°C to +90°C, and adjustable hysteresis (from 0.25°C to 2.5°C) prevents frequent switching of the receiver, which translates into its longer life. An additional input allows you to lower the temperature by 5°C in night or time mode.

• Wide setting range: from -10°C to +90°C – possibility of use in various heating systems and rooms.
• Adjustable hysteresis: from 0.25°C to 2.5°C – precise temperature control and protection of the receiver against frequent switching.
• Temperature lowering input: possibility of programming night or time mode with a reduced temperature of 5°C – energy saving.
• Mounting on TH 35 rail: quick and easy mounting in the electrical distribution box.
• Relay output: 16A load capacity at 4000VA AC voltage – possibility of controlling various types of receivers.
• Relay status and power/sensor connection indicator: intuitive device operation signaling.

Construction and technical parameters

The RTM-03 controller is a single-module device (17.5 mm wide), made of high-quality materials. It has connection terminals for power supply, NTC sensor and relay. It ensures safe operation thanks to overvoltage category II and protection class IP20. The cross-section of the connection wires should be from 0.2 to 2.5 mm². The device is adapted to work in an ambient temperature from -20°C to +60°C. The rated supply voltage is 230V AC with a tolerance of -15% to +10%. Current consumption is 26mA.