Additional Resources: Product Page date 08/23/2012 page 1 of 4 SERIES: VDRS-20 DESCRIPTION: AC-DC DIN RAIL FEATURES up to 24 W continuous power DIN Rail power supplies universal input (88-264 Vac / 124-370 Vdc) single output from 12 to 24 V over voltage, over load, over temperature, and short circuit protections UL1310, UL 508, and TUV safety approvals long life electrolytic capacitors efficiency up to 86% RoHS output output output ripple ef ciency MODEL 1 voltage current power and noise max max max (Vdc) (A) (W) (mVp-p) (%) VDRS-20-12 12 1.7 20.4 100 83 VDRS-20-15 15 1.4 21 100 85 VDRS-20-24 24 1 24 120 86 Note: 1. at full load, 230 Vac input, measured at 20MHz bandwidth with a 47 F and 0.1 F parallel cap on the output PART NUMBER KEY VDRS - 20 - XX Base Number Output Voltage cui.com DISCONTINUEDAdditional Resources: Product Page CUI Inc SERIES: VDRS-20 DESCRIPTION: AC-DC DIN RAIL date 08/23/2012 page 2 of 4 INPUT parameter conditions/description min typ max units 88 264 Vac voltage 124 370 Vdc frequency 47 63 Hz 115 Vac 0.45 A current 230 Vac 0.32 A 115 Vac 20 A inrush current 230 Vac 40 A OUTPUT parameter conditions/description min typ max units line regulation 1 % load regulation 1 % temperature coef cient (0 ~ 50C) 0.03 %/C at 115 Vac, cold start 16 ms hold-up time at 230 Vac, cold start 32 ms adjustibility adjustible with built-in trim pot 10 % PROTECTIONS parameter conditions/description min typ max units over voltage protection latch-off mode 115 150 % constant current limiting, automatically recovers over load protection 102 % after fault condition is removed short circuit protection output shut down and auto restart SAFETY & COMPLIANCE parameter conditions/description min typ max units input to output for 1 minute 3,000 Vac isolation voltage input to case for 1 minute 1,500 Vac input to output, input to case, isolation resistance 100 M output to case, 500 Vdc UL 508, TUV EN60950-1, UL1310 NEC class 2 safety approvals compliant EN55022 : 2006(Class B), EN61204-3: 2000, EN61000-6-3: 2007, EN61000-3-2,3 :2006, EMI/EMC EN55024, EN61204-3: 2000, EN61000-6-1: 2007 (EN61000-4-2,3,4,5,6,8,11) leakage current 1mA RoHS compliant yes MTBF 120,400 hours ENVIRONMENTAL parameter conditions/description min typ max units operating temperature -20 70 C storage temperature -40 85 C operating humidity non-condensing 20 90 % storage humidity 10 95 % vibration (10 ~ 500 Hz, 1 hour per axis, 3 hours total) 5 Grms cui.com DISCONTINUED