1000W Single Output telecommunication switching po

communication power supply MODELDUM4805DUM4810DUM4820DUM4830DUM4850DC VOLTAGE48V48V48V48V48VVOLTAGEARANGE46.5 56.5VRATED CURRENT5A10A20A30A50ALOAD REGULATION0.50%0.50%0.50%0.50%0.50%RIPPLE150mV150Mv150mV200mV240mVCURRENT RANGE0-50A0-29.2A0-14.6A0-13A0-7.3AOUTPUTSETUP,HOLD TIME50ms,20ms (typical value)RATED CURRENT127VAC INPUT VOLTAGE RANGE100∼137VACFREQUENCY RANGE40∼60HZINPUTEFFICIENCY73%76%82%83%82%INRUSH CURRENT(COLD STATE) 20A/115V,40A/230VLAKAGE CURRENT<0.7mA/230VACPROTECTIONOver current(110-130%)rated current, limited current, recover automaticallyINSULATION RESISTANCEI/P-O/P:3.0KVAC/1MIN ,IP-F/G:1.5KVAC/1MIN,O/P-F/G:0.5KVAC/MINWORK ENVIRONMENT-10°C∼+60°C,20%∼90%RH non-condensingSTORAGE ENVIRONMENT-20°C∼+85°C,20%∼95%RH non-condensingCOOLING METHODForcing air cooling by built-in DC fanDIMENSION (L*W*H)mm215*115*50standardsUL,CE, CCCOTHERSAll parameters not specially mentioned are measured at230VAC input, rated load and 25°C of ambient temperature