The **TCS-35-R/E** is a specific model within the series of **Temperature Control Switches (TCS)**, typically used in industrial cooling systems, hydraulic power units, or lubrication systems. The "R/E" suffix generally denotes specific output configurations (Relay/Electronic). Below is a breakdown of its electronic components and specifications. --- ### 1. Core Electronic Components The device acts as a solid-state or hybrid thermal monitoring unit. Unlike simple bimetallic switches, it uses active electronic components for higher precision. | Component | Function | | :--- | :--- | | **Sensing Element** | Usually a **PT100** or **PT1000** RTD (Resistance Temperature Detector) for high accuracy and linear response. | | **Control Logic** | An integrated circuit (IC) or microprocessor that compares the resistance of the sensor against the user-defined setpoint. | | **Output Stage** | **R (Relay):** A mechanical relay contact (NO/NC).
**E (Electronic):** A solid-state transistor output (PNP/NPN). | | **Adjustment Potentiometer** | A small screw-type variable resistor used to calibrate the trigger temperature. | --- ### 2. Technical Specifications These parts are designed to operate within rugged industrial environments, often featuring high ingress protection. | Parameter | Typical Value | | :--- | :--- | | **Operating Voltage** | 10V to 30V DC (Standard for E models) | | **Switching Point Range** | +10°C to +100°C (Adjustable) | | **Hysteresis** | Fixed at ~3K to 5K to prevent rapid "chattering" | | **Contact Rating (Relay)** | Max 1A at 24V DC | | **Connector Type** | M12 (4-pin) or DIN 43650 connector | --- ### 3. Wiring Configuration The electronic interface usually follows standard industrial wiring colors: ```mermaid graph LR A[Brown: +VDC] --- B[Device] C[Blue: 0V/GND] --- B D[Black: Signal/Switch] --- B E[White: Optional Alarm] --- B ``` * **Pin 1 (Brown):** Positive Supply (+24V DC). * **Pin 3 (Blue):** Negative Supply (0V). * **Pin 4 (Black):** Switching Output (Triggers when the set temperature is reached). --- ### 4. Distinctive Features * **LED Status Indicators:** Most models include a green LED for "Power On" and a red/yellow LED to indicate when the temperature threshold has been breached. * **Gold-Plated Contacts:** In the "R" (Relay) version, contacts are often gold-plated to ensure low contact resistance even after long periods of inactivity. * **Thermal Response:** The probe is usually housed in a brass or stainless steel sleeve to ensure fast thermal conductivity to the internal sensor.