Autonics TC3YF-21R 12–24 VDC Temperature Controller
TC3YF-21R is Autonics 12–24 VDC temperature controller featuring cooling control, 500ms sampling cycle, and 3-digit LED display operation design. Manufactured by Autonics, this controller belongs to Autonics Temperature Controllers within the TC Series, supporting 12–24VDC power supply, cooling control method, and defined performance parameters that clearly position TC3YF-21R with Autonics 12–24 VDC Temperature Controller classification.

| Brand | Autonics |
| Product Type | Temperature Controller |
| Model Number | TC3YF-21R |
Autonics TC3YF-21R 12–24 VDC Temperature Controller – Technical Specifications
| Specification | Value |
|---|---|
| Power supply | 12-24VDC |
| Sampling cycle | 500ms |
| Display method | 3-digit 7-segment LED |
| Control method | Cooling |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 60℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Protection structure | IP65(front panel) |
| Display accuracy | •At room temp. (23 ±5℃): (PV ±0.5% or 1℃, select the higher one) rdg ±1digit•Out of room temp. range: (PV ±0.5% or 1℃, select the higher one) rdg ±1℃ |
| Input specification | Thermistor(NTC)※2: 5kΩ |
| Hysteresis(adjustable sensitivity) | 0.5 to 5.0℃, 2 to 50℉ variable |
| Input range | -40.0~99.9℃-40.0~212℉ |
| Control output_Compressor | Relay(250VAC~ 5A) |
| Control output_Defrost | Relay(250VAC~ 5A) |
| Weight | Approx. 229g (approx. 143g) |
TC3YF-21R Autonics 12–24 VDC Temperature Controller is designed for controlled cooling applications in industrial automation systems. The TC3YF-21R operates on 12–24VDC power with a 500ms sampling cycle, using a cooling control method and a 3-digit 7-segment LED display for clear process indication. This model is part of the TC Series and is applied where compact DC-powered temperature control is required.
In industrial environments, TC3YF-21R Autonics 12–24 VDC Temperature Controller is used in conveyors, packaging equipment, automation panels, and temperature-regulated assembly processes. The controller supports stable cooling control by responding to process conditions at defined intervals. Its DC-powered operation and simple display structure help maintain consistent temperature regulation in space-constrained industrial control systems.
The TC3YF-21R temperature controller reflects Autonics reliability for industrial automation use. With low-voltage DC operation, defined sampling behavior, and cooling-specific control functionality, it supports dependable long-term performance. As part of the TC Series, this model is suitable for industrial systems requiring consistent cooling control, predictable response characteristics, and stable operation under DC power conditions.




