Temperature Controllers
TCN4 Series Intelligent Digital PID Temperature Controller | Relay & SSR Output
TCN4 Series Digital PID Temperature Controller is an economical and reliable temperature control instrument designed for industrial heating and automation applications. It supports ON/OFF, P, PI and PID control modes, dual LED display for PV and SV values, relay or SSR output, alarm function, and multiple input types including thermocouple and RTD sensors.
- Dual LED display for PV and SV values
- ON/OFF, P, PI and PID control modes
- Relay output and SSR output available
- Upper and lower temperature alarm function
- Supports thermocouple and RTD input
- Wide power supply: AC100–240V, 50Hz
- Multiple sizes available: TCN4S, TCN4M, TCN4H, TCN4L
- Easy panel installation and simple operation
- Suitable for heating and industrial automation equipment
- Economical design for OEM and equipment manufacturers
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Product Name | Digital PID Temperature Controller |
|---|---|
| Series | TCN4 Series |
| Models | TCN4S / TCN4M / TCN4H / TCN4L |
| Display Type | Dual LED Digital Display |
| Display Color | Red PV Display / Green SV Display |
| Control Mode | ON/OFF, P, PI, PID Control |
| Input Type | K, PT100, E, Cu50 Optional |
| Power Supply | AC100–240V, 50Hz |
| Output Type | Relay / SSR |
| Control Output | 220V 5A |
| Measurement Accuracy | ±0.5%FS |
| Working Environment | 0–50°C, 35%–85%RH |
| Installation Environment | -10°C to +50°C |
| Alarm Function | Upper / Lower Limit Alarm |
| Mounting Type | Panel Mounting |
| Application | Heating Equipment, Machinery, Automation Systems |
Model selection guide
Related guides
TCN4 Series PID Temperature Controller: Model Codes, Inputs, Outputs and Commissioning
A working reference for engineers specifying or commissioning a TCN4 series digital PID temperature controller: how the four panel sizes differ, which sensor inputs are accepted, when to use the relay output with a contactor versus the SSR drive output, and the checks to run before first heat-up.
Read guide Technical Guides · 2026-08-23How to Wire TCN4S and TCN4H/L/M Temperature Controllers: Contactor and SSR Methods
Terminal-by-terminal wiring instructions for the TCN4S-14RV and TCN4H/L/M-14RV PID temperature controllers, covering AC contactor (relay output) wiring, BSSR-25DA solid-state relay wiring, K type and PT100/Cu50 sensor connections, SSR heat sink sizing and a commissioning checklist.
Read guide Product Updates · 2026-03-24TC5-S PID Temperature Controller: Model Code, Terminals, Outputs and Commissioning
A working reference for the TC5-S 1/16 DIN digital PID temperature controller: how to read the model code, the electrical specification, terminal-by-terminal wiring, how to choose between relay, SSR drive and 4-20mA output, and the checks to run before the first heat-up.
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