Ø  Universal AC input(90~264Vac) Ø  Built-in active PFC function, PF>0.95 Ø  High efficiency, long life and high reliability Ø  Output protection: OLP/OVP/OTP/SCP Ø  Wide operating ambient temperature (-30℃~70℃) Ø  150%(750W) peak load capacity Ø  Constant current output Ø  Build in remote ON-OFF control Ø  1 U low profile,40.7mm Ø  High efficiency up to 92% Ø  PCB soldering side with conformal coating Ø  Forces air cooling by DC Fan       Ø  3 years warranty MODEL PDF-500L-24 OUTPUT DC Output 24V Rated Current 21A Ripple and Noise Note 2 0-70℃ ≤240mV -30℃ ≤480mV Voltage ADJ.  Range 23.5~26.5V Voltage Accuracy ±3% Line Regulation ±1% Load Regulation ±2% Set-up Time ≤3S (230Vac input, Full load) Hold up Time ≥10mS /(230Vac input, Full load) Temperature Coefficient ±0.03%/℃ Overshoot and Undershoot <5.0% INPUT Voltage Range   90Vac~264Vac Frequency Range 47Hz--63Hz Power Factor(Typical) PF＞0.98/115VAC    PF＞0.95/230VAC Efficiency ( Typical) ≥92% at 230Vac, full load AC Current (max.) <8A Inrush Current (Typical) <20A@115Vac  ; <40A@230Vac     Cold start Leakage Current Input—output: ≤0.1mA     Input—PG: ≤0.75mA Standby power consumption <1.5W PROTECTION Over Load ≥25A, ≤31.2A,Constant current limiting for some time(31.2A, last ≥3S) then PS stop working for 7S,after 7S,if the load <=rated current, PS will work normally, auto recovery Over Voltage 29~34V, Constant voltage, auto recovery Over Temperture 95℃+5℃(detect on thermal protector temperature);shut down,auto recovery after the temperature goes down to50℃ Short Circuit Long-term mode, constant current, auto recovery ENVIRONMENT Operating amb. Temp. & Hum. -30℃~70℃;  20%~90%RH  No condensing  (refer to derating curve) Storage Temp. & Hum. -40℃~85℃;  10%~95%RH  No condensing SAFETY &EMC    (Note 3) Safety Standards UL60950-1 2nd Ed; IEC 60950-1:2005(2nd Ed) ;EN60950-1:2006 Withstand Voltage Primary-Secondary:3.0KVac; ≤10mA .Primary-PG:1.5KVac; ≤10mA. Secondary-PG:0.5KVdc;≤10mA. Isolation Resistance 10M ohms EMI Conduction&Radiation Compliance to EN55022, FCC PART 15  CLASS B Harmonic Current Compliance to EN61000-3-2, class D EMS Immunity Compliance to EN61000-4-2,3,4,5,6,8,11; heavy industry level OTHERS MTBF (MIL-HDBK-217F) More than 200,000Hrs (25℃, Full load) Remote control Pls refer to below detailed description PG signal POWER GOOD warning signal, normal: 5+0.3V; abnormal: 0-0.8V Dimension  (L*W*H) 218*116.5*40.7mm Packing 6PCS/CTN, 8.0KGS, 0.04CBM Cooling method Fored air cooling(Built-in DC Fan, controlled by temperature and load) Fan working: temperature controller up to 60±10℃or Output Current >10±1A Fan stop working: temperature controller down to 40±10℃or Output Current<9±1A NOTE 1. All parameters NOT specially mentioned are measured at rated input, rated load and25℃of ambient temperature. 2. Measured at 20MHz of bandwidth by using a12”twisted pair-wire terminated with a 0.1 uF & 47uF parallel capacitor. 3. The power supply is considered as a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies” on http://www.powerld.com. We are specializes in the research and production of industrial power supply,will go with you all the way.We sincerely invite you to work with us together.