Additional Resources: Additional Resources: Product PageProduct Page 3D Model3D Model date 04/21/2021 page 1 of 5 SERIES: VF-D320-DXXA DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 300 W continuous power w/ 18 CFM forced air passive power correction dual outputs power good signal 3000 Vac isolation voltage over load, over voltage, over temperature, and short circuit protections IEC/EN/UL 62368 certified efficiency up to 75% RoHS output output output ripple and efficiency MODEL 1 3,4 voltage current power noise max w/ max w/ 2 2 max airflow max airflow max typ (Vdc) (A) (A) (W) (W) (mVp-p) (%) 5 15 30 50 VF-D320-D512A 125 250 75% 12 10.42 16.67 120 5 15 30 50 VF-D320-D524A 125 250 75% 24 5.2 8.33 240 5 15 30 50 VF-D320-D548A 125 250 75% 48 2.6 4 .16 480 12 12.5 16.67 120 VF-D320-D1224A 150 300 75% 24 6.25 8.33 240 Notes: 1. Maximum total combined power 2. With external 18 CFM fan 3. 10% minimum load is required to maintain the ripple and regulation. 4. 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 - XX A - 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 DESCRIPTION: AC-DC POWER SUPPLY date 04/21/2021 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 Compliant 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 2.5 mS for a 50% load change. transient response 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 5 % Designated as PG on the CN1. power good This signal goes high 100-500 mS after the output reaches regulation. 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/UL 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