Contact us +1 630 587 9780 Email CP10.121CP10.241CP10.241-S1CP10.242CP10.361CP10.481CPS20.121CPS20.241CPS20.241-60CPS20.241-C1CPS20.241-D1CPS20.361CPS20.481CPS20.481-D1CS3.241CS5.241CS5.241-C1CS5.241-S1CS5.243CS5.244CS10.241CS10.241-S1CS10.242CS10.243CS10.244CS10.481CT5.121CT5.241CT10.241CT10.481CD5.121CD5.241CD5.241-L1CD5.241-S1CD5.242CD5.243ML15.051ML15.121ML15.241ML30.100ML30.101ML30.102ML30.106ML30.241ML50.100ML50.101ML50.102ML50.105ML50.109ML50.111ML60.121ML60.122ML60.241ML60.242ML70.100ML90.200ML95.100ML100.100ML100.102ML100.105ML100.109ML100.200PAS395PIC120.241CPIM90.241PIC120.242CPIC240.241CPIC240.241DQS3.241QS5.241QS5.241-60QS5.241-A1QS5.DNETQS10.121QS10.241QS10.241-60QS10.241-A1QS10.241-C1QS10.241-D1QS10.301QS10.481QS10.481-D1QS10.DNETQS20.241QS20.241-A1QS20.241-C1QS20.244QS20.361QS20.481QS40.241QS40.244QS40.361QS40.481QS40.484QT20.241QT20.241-C1QT20.361QT20.481QT40.241QT40.242QT40.361QT40.481QTD20.241SL2.100SL2.103SL4.100SL5.100SL5.102SL5.105SL5.300SL10.100SL10.101SL10.104SL10.105SL10.106SL10.300SL10.305SL10.309SL20.100SL20.101SL20.110SL20.111SL20.112SL20.113SL20.115SL20.300SL20.301SL20.303SL30.100SL20.310SL30.300SL40.300SL40.301SLA3.100SLA4.100SLA8.100SLA8.300SLAD4.100SLD2.100SLR10.100SLR10.108SLR2.100SLR5.100XT40.241XT40.242XT40.361XT40.362XT40.481XT40.482XT40.721XT40.722AP136.105 AP153.131AP153.133AP155.131AP155.133AP157.121AP157.131AP246.111AP246.122AP336.112AP336.122AP346.112AP346.122AP377.111AP377.121AP486.112AP486.122DP157.132DP257.105DPA144.241 DPA148.141DPA154.141 DPA247.141DPA248.141DPD155.131 DPD155.134DPD155.331YR2.DIODEYR40.241YR40.242YR40.245YR40.482YR80.241YR80.242YRM2.DIODEMLY02.100MLY10.241SLR01SLR02PISA11.401PISA11.402PISA11.403PISA11.404PISA11.406PISA11.410PISA11.203206PISA11.206212PISA11.CLASS2UB10.241UB10.242UB10.245UB20.241UBC10.241UBC10.241-N1UC10.241UC10.242UF20.241UF20.481UZB12.051UZB12.071UZB12.121UZB12.261UZK12.071UZK12.261UZK24.071UZK24.121UZO12.07UZO12.26UZO24.071UZO24.121UZS24.100SLV20.200SLZ10SLZ11SLZ12SLZ13SLZ14SLZ02ZM1.WALLZM2.WALLZM3.WALLZM4.WALLZM1.UBC10ZM11.SIDEZM12.SIDEZM13.SIDEZM14.SIDEZM15.SIDEPIRD20.241UF40.241CT10.241-C1PIC480.241CCP10.241-M1CD10.241YR20.242YR20.246CP20.241CP10.241-C1CP20.241-C1CP10.122CP10.241-R2CP20.242-R2CD10.482CP5.121CP5.241-S2CP5.241CP5.241-M1CP10.241-60CP10.241-R1CP10.241-S2CP20.241-R1CP20.481ZM5.WALLPIC480.241DCP5.241-S1CP5.241-C1UZK12.072UZO12.072CP20.242CP20.241-R2CP20.241-V1CP10.242-R2CP5.242PIC120.241DPIM90.245QT40.241-B2CP20.241-S2ZM10.WALLCP10.241-R2-C1CP20.241-R2-C1CP20.241-S1POE.8AT-DC1CD5.051CP5.481POE.8AT-AC1PIM90.245-L1PIM60.121PIM60.245PIM60.241PIM60.125PIC480.481DCP20.245-R2PIM36.241CP20.248UB40.241FPT500.241-002-101FPT500.241-006-104QS40.241-C2Product Search by Parameter Scroll to ... Overview Approvals - Links or Downloads Technical Data Commercial Information Downloads Accessories / Complementary Units QS20.241-A1 DIN-rail power supplies for 1-phase systems 24V, 20A AC 100-240V wide-range inputWidth only 82mmEfficiency up to 93.9%150% (720W) peak load capabilitySafe Hiccup PLUS overload modeEasy fuse tripping due to high overload currentActive power factor correction (PFC)Negligible low inrush current surgeShort-term operation down to 60Vac and up to 300VacFull power between -25°C and +60°CDC-OK relay contactQuick-connect spring-clamp terminalsATEX and IECEx approvedconformal coated PC-board DC Output24-28Vdc20-17A480WInput AC 100-240V (± 15%) DC 110V-150V (-20%/+25%) Size (WxHxD)82 x 124 x 127mmWeight1200gProduct Status Stock item Datasheet (1 MB) Approvals - Links or DownloadsShowUL 508 Listed USAUL 508 Listed CanadaUL 60950-1 USAUL 60950-1 CanadaIEC 60950 CB Scheme (169 KB)ATEX EN 60079 (1 MB)IEC 60079 IECEx (1 MB)EU Declaration of Conformity (68 KB)Marine: DNV GL (555 KB)Marine ABS (2 MB)SEMI F47 (127 KB)Class I Div. 2 USA - CSA (386 KB)Class I Div. 2 Canada - CSA (386 KB)EAC (Russia, Kazakhstan and Belarus) (1 MB)Technical DataInput DataShowAC-Input Voltage AC 100-240V (± 15%) DC-Input Voltage DC 110V-150V (-20%/+25%) EN61000-3-2(PFC-Norm) fulfilled Harmonic CorrectionactivePower Factor0.90Input Inrush Current LimitationactivePeak turn on current9A/7A (D1)External Input Fuse Recommendationmin. B-10A / C-10AOutput DataShowNominal Voltage24VdcAdjustment Range24-28VOutput Current Range20-17A Output Current 17A at 28V 20A at 24V Output Power480WPower Reserves50% BonusPower®max. Ripple and Noise Voltage100mVppOverviewShowSize (WxHxD)82mm x 124mm x 127mmWeight per Piece (excluding packing)1200gOperat. Temperature Range-25°C ... +70°CDerating12W/°C at >+60°CMounting Method DIN-Rail Efficiency, typ.93.9%Power Losses, typ.31.4WMTBF SN 29500 @ 40°C (h)469.000hConnection methodSpring-clamp terminalsDC-OK SignalyesFootnotesD1)Peak current at 120Vac/230vac, independent of temperature Commercial InformationOverviewShowArticle NumberQS20.241-A1UPC Code875404001621Country of originCZProduct Status Stock item E ClassificationeClass 5.1 27049002 eClass 6.x 27049002 eClass 7.x 27049002 eClass 8.0 27049002 eClass 9.0 27040701 ETIM 4.0 EC000599 ETIM 5.0 EC002540 HS Code HS 85044082Warranty Period (Month)36Packaging Unit1pcDownloadsDatasheet (1 MB)Functional Diagram (30 KB)Mechanical Dimensions (13 KB)Output Diagram (28 KB)DRC Conflict Minerals Declaration & EICC-GeSI Reporting Template (3 MB)Material Certificate of Conformity (RoHS, REACH, China-RoHS, …) (297 KB)Instruction manual (45 KB)2-D Dimensional Mechanical CAD Drawing DXF (1 MB)2-D Dimensional Mechanical Drawing DWG (543 KB)3-D Dimensional Mechanical CAD Model STEP (969 KB)3-D Dimensional Mechanical Model DWF (293 KB)EPlan files (1 MB) Accessories / Complementary UnitsSide mounting bracketZM15.SIDEDatasheetAdapter for Siemens S7-300 railSLZ13DatasheetMOSFET redundancy moduleYR40.242DatasheetDC-UPS control unitUB20.241DatasheetWall / panel mount bracketZM2.WALLDatasheet Back to top