Additional Resources: Additional Resources: Product PageProduct Page 3D Model3D Model date 04/22/2021 page 1 of 5 SERIES: VF-D320-DXXA-CFS DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 300 W continuous power metal top cover and side fan passive power correction dual outputs power good signal 3000 Vac isolation voltage over load, over voltage, over temperature, and short circuit protections IEC/EN/U 62368 certified efficiency up to 75% RoHS 1 output output output ripple and efficiency MODEL 2,3 voltage current power noise max max max typ (Vdc) (A) (W) (mVp-p) (%) 5 30 50 VF-D320-D512A-CFS 250 75% 12 16.67 120 5 30 50 VF-D320-D524A-CFS 250 75% 24 8.33 240 5 30 50 VF-D320-D548A-CFS 250 75% 48 4.16 480 12 16.67 120 VF-D320-D1224A-CFS 300 75% 24 8.33 240 Notes: 1. Maximum combined power. 2. 10% minimum load is required to maintain the ripple and regulation. 3. Ripple and noise is measured from 10 KHz to 20 MHz at output terminals with a 0.1 F ceramic capacitor and a 22 F electrolytic capacitor in parallel. PART NUMBER KEY VF - D320 - DXX A - CFS - X Base Number Output Voltage Input/Output connector: blank = Terminal block input / Terminal block output 1 = Molex input / Molex output 2 = Molex input / Terminal block output 3 = Terminal block input / Molex output cui.comAdditional Resources: Additional Resources: Product PageProduct Page 3D Model3D Model CUI Inc SERIES: VF-D320-DXXA-CFS DESCRIPTION: AC-DC POWER SUPPLY date 04/22/2021 page 2 of 5 INPUT parameter conditions/description min typ max units voltage 90-132/180-264 auto selectable 90/180 132/264 Vac frequency 47 63 Hz at 100-120 Vac, cold start 8 A current at 200-240 Vac, cold start 4 A at 115 Vac, full load, cold start 35 A inrush current at 230 Vac, full load, cold start 70 A power factor Comlpiant to EN61000-3-2 class A OUTPUT parameter conditions/description min typ max units line regulation low line to high line 5 % load regulation all other outputs 5 % temperature coefficient 0.25 mV/C Output voltage returns to within 1% in less than transient response 2.5 mS for a 50% load change. Peak transient does not exceed 5%. start-up time At 120 Vac 1 s hold-up time At 120 Vac and 80% of rated maximum load 20 ms adjustability Adjustable with built-in trim pot. 5 % Designated as PG on the CN1. This signal goes high 100-500 mS after the output reaches regulation. power good It goes low at least 1 mS before loss of regulation. fan drive 12 Vdc / 400 mA for external fan PROTECTIONS parameter conditions/description min typ max units over voltage protection AC input needs to be reset to restart the power supply. 130 % over current protection Foldback mode, automatically recovers 110 140 % short circuit protection Short circuit can be continuous. Recovers automatically upon removal of short. over temp. protection Auto recovery 85 C SAFETY & COMPLIANCE parameter conditions/description min typ max units Applied for 3 seconds at 10 mA max. Primary to secondary: 3,000 Vac isolation voltage Primary to transformer core: 1,500 Vac Primary to earth chassis: 1,500 Vac safety approvals certified to 62368: IEC/EN/U EMI/EMC Pass FCC Part 15, CISPR 22 class B, Conducted at 240 Vac 500 A leakage current at 120 Vac 300 A RoHS compliant yes MTBF According to MIL-HDBK-217 at 30 C 100,000 hrs cui.com