The TDK-Lambda SWS300-24 is a 300 W single-output enclosed power supply for industrial and commercial applications requiring universal AC or DC input conversion to regulated 24 VDC. Designed for chassis, desktop, or panel mounting within larger equipment assemblies, this unit delivers up to 13 A output current across an adjustable voltage range of 20 to 28.8 VDC. The supply accepts 85–265 VAC (47–63 Hz) or 120–370 VDC input and achieves 84% typical efficiency with active power factor correction to EN61000-3-2. Line regulation measures 48 mV; load regulation is 120 mV. Output ripple and noise remain under 150 mV peak-to-peak. Forced-air cooling and compact dimensions (52 × 102 × 198 mm) make integration straightforward in space-constrained installations.
Technical Specifications
• Input: 85–265 VAC (47–63 Hz) or 120–370 VDC
• Output: 24 VDC nominal, 20–28.8 VDC adjustable range
• Maximum output current: 13 A
• Maximum output power: 300 W
• Efficiency: 84% typical
• Line regulation: 48 mV
• Load regulation: 120 mV
• Output ripple and noise: 150 mV peak-to-peak
• Isolation voltage: 3 kVAC
• Operating temperature: −10 to +65 °C
• Cooling: Forced air
• Weight: 950 g
– Key Features
• Universal AC/DC input with active PFC per EN61000-3-2
• Over-voltage, over-current, and short-circuit protection (30 s max duration)
• Screw terminals for secure connections
• Input transient protection per IEC61000-4
• Certified to CSA C22.2 No.60950-1, EN60950-1, UL60950-1, EN50178
• Overvoltage Category II rated
– Typical Applications
Industrial automation, process control, telecommunications infrastructure, and embedded system power distribution requiring stable 24 VDC output in confined form factors.
– Compatibility & Integration
Note: This product is obsolete/end-of-life. Recommended alternates are HWS300-24 or RWS300B-24; interchangeability is not guaranteed. Requires clear ventilation around front, back, and top surfaces. M4 mounting screws should penetrate maximum 6 mm and be torqued to 1.27 N·m.
