CZCL LED Display Power Supply 300W PAS4-300-5 series Features: Input Parameter: Input Voltage Range: 90～264Vac Input Frequency Range: 47～63HZ(Typ 50/60) Max AC Current: <7.0A, 100Vac, full load Inrush current: ≤90A, 240V, Full load, 25℃ PF >0.92(AC100~240Vac, full load) Leakage Current:I/P-O/P:≤0.25mA, I/P-F/G:≤3.5mA (Vin=250Vac 60HZ) Output Parameter: Dc Voltage Range: 5V(4.5V/4.2V is available too) Rated Current: 0-60A Max power:300W Ripple & Noise: ≤700mVp-P Efficiency (Typ):86%(Typ 87.5%) Vin=115V Full load,25℃,  89%(Typ 90.4%) Vin=230V, full load, 25℃ Voltage Tolerance:±2% Line Regulation: ±1% Load Regulation:±2% Protection： Over voltage protection: 5.5-6.0V Over current protection: 73-78A Over temperature protection: 65-85℃,  full load 25℃. Short circuit protection,Hiccup mode, recovers automatically after fault condition is removed Under voltage protection: 75-80Vac, recovery value: 80-90Vac Safety Standards: UL60950, IEC/EN60950, GB4943.1-2011 EMC： EN55022(CISSPR22)ClassA,EN61000-3-2,EN61000-3-2， EMI: EN61000-4-2,3,4,5,6,8,11, EN55024  Light industry Class A（Surge 4KV） Hi-pot: I/P-O/P: 3.0KVAC/ 10mA/ 60S , I/P-FG:1.5KVAC/ 10mA/ 60S , O/P-F/G: 500Vdc/10mA/ 60S Isolation Resistance:I/P-O/P:≥10MΩ@ 500Vdc,I/P-F/G:≥10MΩ@ 500Vdc,O/P-F/G:≥10MΩ@ 500Vdc Leakage current: I/P-FG: ≤3.5mA , I/P-O/P:≤0.25mA (240Vac/60Hz) Others: Working Temperature:-35℃ ～ 65℃(-40℃ can switch on) Working Humidity:5%～90%RH Storage temperature: -40℃～ 80℃ Free air convection Dimension (L*W*H): 252*64*30mm Carton Dimension: 40*31*18.5 cm Packing:36PCS/24.4KG/0.02CBM MTBF:100K hours (MIL-HDBK-217F (25℃ ) 3 years warranty Installment requirement:  please install an auxiliary AL heat sink(500mm*200mm*3mm) between the power supply case and LED screen case, and filled with thermal grease or a Thermal silicone gasket(250*64*1.0mm, 2.0 W/m·k) between the power supply bottom case and the heatsink to help system heat dissipation