TC3Y-34R Autonics Temperature Controller
Autonics TC3Y-34R Cooling & Defrost Temperature Controller (Relay Output, 72×36 mm)
The Autonics TC3Y-34R is a compact digital temperature controller designed for cooling and defrost control.
It supports RTD/NTC inputs and provides relay outputs for compressor, defrost, and fan control.
The Autonics TC3Y-34R is a digital cooling and defrost temperature controller designed for refrigeration, cold storage, and industrial cooling systems. It supports RTD (Pt100) and NTC thermistor inputs and provides relay outputs for controlling compressors, defrost heaters, and evaporator fans.
With its compact 72 × 36 mm panel size, the TC3Y-34R is ideal for control panels where space is limited.
Key Features
Compact panel size: 72 × 36 mm
Cooling and defrost temperature control
Supports RTD (Pt100) and NTC thermistor inputs
Relay outputs for:
Compressor
Defrost
Evaporator fan
ON/OFF control with adjustable hysteresis
Auto and manual defrost functions
Temperature unit selectable: °C / °F
Clear LED display for PV/SV indication
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Cooling & Defrost Temperature Controller |
| Model | TC3Y-34R |
| Series | TC3Y |
| Input Sensor | RTD (Pt100, 3-wire), NTC Thermistor |
| Temperature Range (RTD) | −99.9 to +99.9 °C |
| Temperature Range (NTC) | −40 to +99.9 °C |
| Control Method | ON/OFF Control |
| Output Type | Relay |
| Output Functions | Compressor, Defrost, Evaporator Fan |
| Relay Contact Rating | 250 VAC 5 A / 10 A (resistive, output-wise) |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Display Type | 7-segment LED |
| Panel Cut-out | Approx. 68 × 30 mm |
| Operating Temp. | −10 to +50 °C |
| Mounting | Panel Mount |
Applications
Refrigeration systems
Cold storage rooms
Freezers and chillers
HVAC cooling control
Food processing equipment
Industrial cooling panels
What’s in the Box?
Autonics TC3Y-34R Temperature Controller
Panel mounting brackets
Instruction manual
FAQ
Q1. What type of sensors are supported?
It supports Pt100 RTD (3-wire) and NTC thermistor sensors.
Q2. Is this suitable for refrigeration control?
Yes. It is specifically designed for cooling and defrost applications.
Q3. Does it support automatic defrost?
Yes. Both auto and manual defrost modes are available.
Q4. What outputs are available?
Relay outputs for compressor, defrost heater, and evaporator fan.
Q5. What is the panel size?
The controller fits a 72 × 36 mm panel cutout.