
TCN4M-24R Autonics Temperature Controller
Autonics TCN4M-24R PID Temperature Controller (48×48 mm, Relay Output)
The Autonics TCN4M-24R is a 48×48 mm PID temperature controller with thermocouple/RTD input and relay output.
It offers enhanced control accuracy and stability for industrial heating and process automation applications.
The Autonics TCN4M-24R is a 48 × 48 mm DIN-size PID temperature controller from the TCN series, positioned as a mid-range performance model. It supports thermocouple and RTD inputs and provides a relay control output, delivering reliable and stable temperature regulation for demanding industrial processes.
Compared to entry-level models, the TCN4M offers improved accuracy and control stability, making it suitable for OEM machinery and automation panels requiring consistent temperature control.
Key Features
Standard 48 × 48 mm DIN panel size
Single display for PV/SV indication
Supports thermocouple and RTD sensor inputs
Control modes: ON/OFF, P, PI, PD, PID
Relay control output for heaters and contactors
Auto-tuning for PID parameters
Improved control stability over basic models
Designed for continuous industrial operation
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | PID Temperature Controller |
| Model | TCN4M-24R |
| Series | TCN |
| Panel Size | 48 × 48 mm |
| Sensor Input | Thermocouple (K, J, T, E, N) / RTD (Pt100) |
| Control Method | ON/OFF, P, PI, PD, PID |
| Control Output | Relay |
| Relay Rating | 250 VAC, 3 A (resistive) |
| Sampling Rate | Approx. 100 ms |
| Display Accuracy | ±0.3–0.5% of FS |
| Power Supply | 24 VAC / 24 VDC |
| Operating Temperature | −10 to +50 °C |
| Mounting | Panel Mount |
Applications
Industrial heaters
Packaging and sealing machines
Plastic and rubber processing equipment
Ovens and furnaces
OEM automation panels
Process temperature control systems
What’s in the Box?
Autonics TCN4M-24R Temperature Controller
Panel mounting brackets
Instruction manual
FAQ
Q1. What does “24R” mean in TCN4M-24R?
“24” indicates a 24 VAC/DC power supply, and “R” indicates relay output.
Q2. Which sensors are supported?
Supports thermocouples (K, J, T, E, N) and Pt100 RTD sensors.
Q3. Does this controller support PID control?
Yes. It supports ON/OFF, P, PI, PD, and PID control with auto-tuning.
Q4. Where is TCN4M positioned in the TCN series?
TCN4M is a mid-range model, offering better stability than TCN4L and fewer advanced functions than TCN4H.
Q5. Is it suitable for industrial heater control?
Yes. It is widely used for industrial heaters, ovens, and process equipment.



