title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

WBAWBAAC-DC Power Supplies Enclosed TypeWBA75BOrdering informationWB A 75 B -O -O1 2 3 4 5 61 Series name2 Single output3 Output wattage4 230/277VAC input5 Output voltage6 Optional : *5C : With CoatingG : Low leakage currentT1 : Horizontal terminal block*Make sure necessary tests will be carried out on your end equipment with the power supply installed in accordance with any required EMC/EMI regulations.MODELWBA75B-12WBA75B-24WBA75B-48MAX OUTPUT WATTAGE[W]7276.876.8DC OUTPUT12V 6A24V 3.2A48V 1.6ASPECIFICATIONSMODELWBA75B-12WBA75B-24WBA75B-48VOLTAGE[V]AC170 - 305 1fCURRENT[A]0.8FREQUENCY[Hz]50/60 (47-63)ACIN 230V 85typ 88typ 89typEFFICIENCY[%]INPUTACIN 277V 85typ 88typ 89typINRUSH CURRENT[A]LEAKAGEACIN 240V0.5maxCURRENT[mA]ACIN 277V0.75maxVOLTAGE[V]122448CURRENT[A]63.21.6WATTAGE[W]7276.876.8LINE REGULATION[mV]*1120max240max480maxLOAD REGULATION[mV]*1120max240max480maxOUTPUTRIPPLE NOISE [mVp-p] *2 lo=100% 150max（Bandwidth 20MHz）TEMPERATURE REGULATION[mV] 0~+50C 180max 360max 720maxSTART-UP TIME[ms]100typHOLD-UP TIME[ms]OUTPUT VOLTAGE ADJUSTMENT RANGE[V]10.8 to 13.221.6 to 26.443.2 to 52.8OUTPUT VOLTAGE SETTING[V]11.75 to 12.2523.5 to 24.547.0 to 49.0PROTECTIONOVERCURRENT PROTECTION [A]Works over 105% of rating and recovers automaticallyCIRCUIT ANDOVERVOLTAGE PROTECTION[V]13.8 to 16.827.6 to 33.655.2 to 67.2OTHERSOPERATING INDICATIONLED（Green）INPUT-OUTPUTAC4,000V 1minute, Cutoff current = 10mA，DC500V 50MΩmin（At Room Temperature）ISOLATIONINPUT-FGAC2,000V 1minute, Cutoff current = 10mA，DC500V 50MΩmin（At Room Temperature）OUTPUT-FGAC500V 1minute, Cutoff current = 100mA，DC500V 50MΩmin（At Room Temperature）OPERATING TEMP.,HUMID. *3-20 to +70C, 20-90%RH（Non condensing）ENVIRONMENTIMPACT196.1m/s 2（20G）, 11ms, once each X, Y and Z axisAGENCY APPROVALSUL62368-1, C-UL (equivalent to CAN/CSA-C22.2 No.62368-1), EN62368-1SAFETY ANDEMC EMISSONComplies with CISPR11-B, CISPR32-B, EN55011-B, EN55032-B, FCC Part 15-B, FCC Part 18-BEMCEMC EMMUNITYComplies with EN61000-4-2, 3, 4, 5, 6, 8, 11HARMONIC ATTENUATOR *4Complies with IEC61000-3-2 (Class A) No built-in active PFCOTHERSWARRANTYWARRANTY*55 years (subject to the operating conditions)*1 Consult us about dynamic load and input response. Measure the output voltage by usingthe average mode of the tester to deal with the burst operation at low (Io=0～20%Atyp)load.*2 This is the result of measurement of the testing board with capacitors of 47μF and 0.1μFplaced at 150 mm from the output terminals by a 20MHz oscilloscope or a ripple-noisemeter equivalent to Keisoku-GikenRM104.When the load factor is low (Io=0～20%Atyp), the switching power loss is reduced by burstoperation, which will cause ripple noise to go beyond the specifications.*3 Output power derating is required. Refer to "Derating"*4 Please contact us about another class. When two or more units are operating it may notcomply with the IEC61000-3-2. Please contact us for details.*5 Consult us about details.*6 The listed options may affect the published standard specifications. Please contact us fordetailed product specifications and safety approvals.* All parameters not specially mentioned are measured at ACIN 230V, rated load and 25℃of ambient temperature.* Do not use the power supply in overcurrent conditions or in unspecified input voltageranges. Otherwise the internal components may be damaged.* Parallel operation is not possible with this model.* Acoustic noise may be heard from the power supply when used for pulse load.WBA-4May ? 136 09, ? 2025