The **SWF240P-48-R-T** is a high-performance, industrial-grade AC-DC power supply manufactured by **Sanken Electric**. It is part of the SWF series, designed specifically for applications requiring high peak power and compact open-frame designs. --- ## 1. Technical Specifications The following table summarizes the primary electrical characteristics of the unit: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Output Voltage** | 48V DC | Regulated output | | **Output Power** | 240W (Continuous) | 480W (Peak) | | **Input Voltage Range** | 85V to 264V AC | Universal AC Input | | **Output Current** | 5.0A (Continuous) | Up to 10.0A (Peak) | | **Efficiency** | ~91% | Typical at 230VAC | | **Form Factor** | Open Frame | L-bracket type available | | **Cooling** | Convection | No fan required for standard loads | --- ## 2. Key Electronic Features ### A. Peak Power Capability One of the most significant features of the "P" (Peak) series is its ability to handle **200% peak loads**. This is essential for devices with high startup currents, such as: * DC Motors * Solenoids * Actuators ### B. Protection Circuitry The unit includes several integrated safety mechanisms to protect the load and the power supply itself: 1. **Overcurrent Protection (OCP):** Automatically limits current if the load exceeds the peak rating. 2. **Overvoltage Protection (OVP):** Shuts down the unit if the output voltage rises above a safe threshold. 3. **Thermal Protection:** Prevents damage caused by overheating during prolonged peak usage. ### C. Active PFC (Power Factor Correction) The device incorporates active PFC, which ensures compliance with international standards (like IEC61000-3-2), reducing harmonic current and improving energy efficiency on the AC line side. --- ## 3. Nomenclature Breakdown Understanding the part number **SWF240P-48-R-T**: | Segment | Meaning | | :--- | :--- | | **SWF** | Series Name (Switching Power Supply) | | **240** | Rated Output Wattage (240 Watts) | | **P** | Peak Power Support (High Inrush capability) | | **48** | Output Voltage (48 Volts) | | **R** | Remote Sensing/Control (Depending on specific sub-revision) | | **T** | Terminal Block type (Physical connection interface) | --- ## 4. Typical Applications Due to its 48V output and high peak capacity, this part is commonly used in: * **Telecommunications:** Powering remote radio units or networking hubs. * **Industrial Automation:** Powering PLCs and motor controllers. * **PoE (Power over Ethernet):** Serving as the backend supply for PoE injectors and switches.