Autonics TK4L-12CN Temperature Controller
The Autonics TK4L-12CN Temperature Controller offers ON/OFF, P, PI, PD, PID control method, 24VAC~ 50/60Hz, 24-48VDC power supply, 4-digit 7-segment LED, 50ms. Manufactured by Autonics under the Autonics Temperature Controller category, this model belongs to the TK Series.

| Brand | Autonics |
| Product Type | Temperature Controller |
| Model Number | TK4L-12CN |
Autonics TK4L-12CN Temperature Controller – Technical Specifications
| Specification | Value |
|---|---|
| Power supply | 24VAC~ 50/60Hz, 24-48VDC |
| Sampling cycle | 50ms |
| Display method | 4-digit 7-segment LED |
| Control method | ON/OFF, P, PI, PD, PID |
| Proportional band | 0.1 to 999.9℃/℉(0.1 to 999.9%) |
| Integral time | 0 to 9999 sec |
| Derivative time | 0 to 9999 sec |
| Control period | Relay output, SSR drive output: 0.1 to 120.0 sec Current output or SSR drive output selectable: 1.0 to 120.0 sec |
| Manual reset | 0.0 to 100.0% |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 60℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 2kV) |
| Option input | CT, Digital(DI-1/2) |
| Protection structure | IP65(front panel) |
| Display accuracy_CT input | ±5% F.S. ±1-digit |
| Input specification | Thermocouple: K(CA), J(IC), E(CR), T(CC), B(PR), R(PR), S(PR), N(NN), C(TT), G(TT), L(IC), U(CC), Platinel IIRTD: DPt100Ω, DPt50Ω, JPt100Ω, Cu100Ω, Cu50Ω, Nikel 120ΩAnalog: 0-100mV, 0-5V, 1-5V, 0-10V0-20mA, 4-20mA |
| Option output | Alarm 1 |
| Display accuracy_RTD | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Display accuracy_Thermocouple | •At room temperature(23℃±5℃):(PV ±0.3% or ±1℃, select the higher one) ±1-digit•Out of room temperature:(PV ±0.5% or ±2℃, select the higher one) ±1-digit |
| Hysteresis(adjustable sensitivity) | RTD/Thermocouples: 1 to 100℃/℉(0.1 to 100.0℃/℉) variable Analog: 1 to 100-digit |
| Control output 1 | Current(DC0/4-20mA) or SSR drive(11VDC @(=)) [ON/OFF] |
| Display accuracy_Analog | •At room temperature(23℃±5℃): ±0.3% F.S. ±1-digit•Out of range of room temperature: ±0.5℃% F.S. ±1-digit |
| Control output 2 | - |
| Weight | Approx. 294g(approx. 198g) |
The Autonics TK4L-12CN Temperature Controller is built with a rapid 50ms sampling cycle and supports a versatile 24VAC/24–48VDC power input, making it highly reliable for low-voltage automation panels. With ON/OFF, P, PI, PD, and PID control modes, engineers can fine-tune performance to meet diverse industrial requirements. Its 4-digit LED display ensures clear monitoring, while compatibility with thermocouples, RTDs, and analog signals provides flexibility for integration into a wide range of systems.
Reinforced with IP65-rated front protection and 2kV dielectric insulation, the TK4L-12CN ensures safe, long-term operation in environments exposed to dust, vibration, and humidity. Output options such as DC 0/4–20mA current or SSR drive allow it to seamlessly connect with heaters, actuators, and alarms, making it adaptable to both existing and new process lines. At just 294g, this compact model provides robust performance without occupying excess panel space, making it ideal for OEMs and maintenance teams alike.
Applications of the TK4L-12CN extend to packaging machinery, plastic extrusion, pharmaceutical equipment, and food processing lines where consistent thermal stability is critical. Junior technicians value its simple configuration, while experienced engineers rely on its High Performance PID Temp Control accuracy for maintaining efficiency and reducing downtime. Trusted by automation professionals, this controller delivers dependable performance and process safety. For technical datasheets, wiring diagrams, or more details, visit the official Autonics Temperature Controller page.
To strengthen search relevance, the Autonics TK4L-12CN is often associated with keywords such as 12CN, TK4L, Autonics 12CN, Autonics TK4L, TK4L AUTONICS, and TK4L-12CN. These terms highlight its presence in the market as a reliable, compact, and efficient choice for industries that require precise Temperature Controllers in demanding automation setups.




