The **TDK-Lambda RWS600B-24-R** is a high-reliability, industrial-grade AC-DC single-output power supply. It is part of the RWS-B series, designed for long life and high performance in harsh environments. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of the unit: | Parameter | Specification | | :--- | :--- | | **Input Voltage Range** | 85 - 265 VAC (47-63Hz) or 120 - 370 VDC | | **Output Voltage** | 24 VDC | | **Output Current** | 25 A | | **Max Power Rating** | 600 W | | **Efficiency (typ)** | 88% (at 200VAC) | | **Cooling** | Internal Fan Cooling | --- ### 2. Breakdown of Electronic Parts & Features #### A. Input Section (Front-End) * **Universal Input:** Equipped with a wide-range input circuit that handles global voltages without a physical switch. * **Active PFC:** Includes active **Power Factor Correction** (typically >0.95), reducing harmonic distortion and ensuring compliance with IEC61000-3-2. * **Protection:** Features an internal fuse and surge protection to shield the device from grid fluctuations. #### B. Output & Control Section * **Voltage Adjustment:** Contains a built-in potentiometer (trimmer) allowing the user to adjust the 24V output (typically ±10%). * **"R" Option (Remote ON/OFF):** The "R" suffix specifically indicates the inclusion of a **Remote On/Off control circuit**. This allows an external signal to toggle the power supply without cutting the AC mains. * **Overcurrent Protection (OCP):** Constant current limiting with automatic recovery. * **Overvoltage Protection (OVP):** Shuts down the unit if the output exceeds a safe threshold (approx. 115-140%). #### C. Thermal Management * **Internal Fan:** The 600W model generates significant heat; it uses an integrated DC fan. * **Thermal Shutdown:** Includes an internal thermistor to shut down the unit if the internal temperature exceeds safe operating limits. --- ### 3. Connection Pinout (Summary) The unit uses screw terminals for high-current connections and a smaller connector for signals. | Terminal | Function | | :--- | :--- | | **L, N** | AC Input (Line and Neutral) | | **FG** | Frame Ground (Earth) | | **-V, +V** | DC Output Terminals | | **-S, +S** | Remote Sensing (to compensate for wire voltage drop) | | **CNT+, CNT-** | Remote ON/OFF Control (Specific to the -R model) | --- ### 4. Typical Applications * **Industrial Automation:** Powering PLCs, sensors, and motors. * **Test and Measurement:** Benchtop equipment requiring stable DC power. * **Communications:** Infrastructure equipment requiring high MTBF (Mean Time Between Failures).