The **TCS-2B-R/K** is a specific model within the series of **Temperature Control Switches (TCS)**, widely used in industrial cooling systems, refrigeration, and specialized machinery. This part is typically categorized as a thermal protection or regulation component. --- ### 1. Key Technical Specifications The "R/K" designation often refers to specific mounting or sensor types (Resistance/K-type thermocouple compatibility). Below are the general electronic parameters for this series: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 100V - 240V AC (Wide range) | | **Contact Capacity** | 3A to 5A at 250V AC (Resistive load) | | **Control Type** | ON/OFF Control or Proportioning | | **Sensor Type** | RTD (Pt100) or Thermocouple (Type K) | | **Hysteresis** | Adjustable (Fixed in some sub-models) | | **Mounting Style** | Panel Mount / Rail Mount | --- ### 2. Internal Electronic Components The device functions through a series of integrated electronic stages: 1. **Input Conditioning:** Uses a bridge circuit (for RTDs) or a cold-junction compensation circuit (for K-type thermocouples) to convert temperature into a voltage signal. 2. **Comparator/Microcontroller:** A central processing chip compares the signal from the sensor against the user-defined set point. 3. **Output Relay:** A mechanical or solid-state relay (SSR) that acts as the switch to power the compressor, heater, or fan. 4. **LED/Display Driver:** Drives the status indicators (Green for Power, Red for Output/Alarm). --- ### 3. Connection Pinout Guide While pin configurations can vary slightly by manufacturer, the standard electronic layout for the TCS-2B is as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1 - 2** | **Power Supply** | AC Input (Check label for voltage) | | **3 - 5** | **Output Contacts** | Common, NO (Normally Open), NC (Normally Closed) | | **6 - 8** | **Sensor Input** | Connection for the Thermocouple or Pt100 probe | --- ### 4. Common Applications * **Industrial Chillers:** Controlling the cycling of the compressor. * **Plastic Injection Molding:** Maintaining stable nozzle temperatures. * **Food Processing:** Regulating heating elements in industrial ovens. ---