Additional Resources: Product Page 3D Model date 04/20/2021 page 1 of 6 SERIES: VMS-450B-CFS DESCRIPTION: AC-DC POWER SUPPLY FEATURES up to 450 W continuous power universal input voltage range power factor correction 12 Vdc Fan output 5 Vdc AUX output certified to IEC/EN/UL 60601-1 over voltage, over current, over temperature and short circuit protections RoHS output output output ripple and efficiency MODEL 1 voltage current power noise max max max typ (Vdc) (A) (W) (mVp-p) (%) VMS-450B-12 12 37.5 450 240 89 VMS-450B-15 15 30.0 450 225 89 VMS-450B-19 19 23.7 450 190 91 VMS-450B-24 24 18.8 450 240 91 VMS-450B-36 36 12.5 450 360 90 VMS-450B-48 48 9.4 450 480 91 VMS-450B-54 54 8.3 450 540 92 VMS-450B-56 56 8.0 450 560 92 Notes: 1. Ripple and noise is measured with 20 MHz bandwidth with a 0.1 F ceramic capacitor and a low ESR 47 F electrolytic capacitor at output connector terminals. PART NUMBER KEY VMS - 450B - XX - CFS Base Number Output Voltage CFS = enclosed with side fan cui.comAdditional Resources: Product Page 3D Model CUI Inc SERIES: VMS-450B-CFS DESCRIPTION: AC-DC POWER SUPPLY date 04/20/2021 page 2 of 6 INPUT parameter conditions/description min typ max units voltage 100 240 Vac frequency 47 63 Hz at 115 Vac, full load 5.3 A current at 230 Vac, full load 2.2 A inrush current at 230 Vac, cold start at 25 C, full load 100 A power factor at full load 0.9 OUTPUT parameter conditions/description min typ max units regulation 5 % fan drive 12 Vdc / 600 mA for external fan 5 % aux 5 Vdc / 1 A Max 5 % on: open or short to 5 V remote on/off off: short to DC RTN PROTECTIONS parameter conditions/description min typ max units over voltage protection shut down 150 % over current protection automatically recovers 130 % short circuit protection automatically recovers after short-circuit fault is removed over temperature protection shut down SAFETY & COMPLIANCE parameter conditions/description min typ max units input to output, one minute 4,000 Vac isolation voltage input to ground, one minute 1,500 Vac certified to IEC / EN / UL 60601-1 safety class class I conducted emissions EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0 radiated emissions EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0 harmonic current emissions EN 61000-3-2:2014 voltage fluctuation and flicker EN 61000-3-3: 2013 ESD EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-2:2008 radiated immunity EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC61000-4-3:2006+A1: 2007+A2: 2010 EF T/Burst EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-4: 2012 surge EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-5:2014+A1: 2017 conducted immunity EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-6: 2013 magnet field measurement EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-8: 2009 voltage dips and interruptions EN 60601-1-2:2015 and IEC 60601-1-2 ed 4.0, IEC 61000-4-11:2004+A1: 2017 MTBF Telcordia SR-332, 250 W, 25 C 300,000 hrs RoHS yes cui.com