DIN-rail power supplies for 1-phase systems
24V, 40A

  • AC 100-240V Wide-range input
  • Width only 110mm, Weight only 1.9kg
  • 94.6% Full load and excellent partial load efficiencies
  • 50% BonusPower®, 1440W for up to 4s
  • 110A High peak current for 10ms for easy fuse Tripping
  • Safe HiccupPLUS overload mode
  • Active power factor correction (PFC)
  • Negligibly low input inrush current
  • Full power between -25°C and +60°C
  • Current sharing feature for parallel use
  • Internal data logging for troubleshooting included.
  • Remote control of output voltage
  • DC-OK relay contact
  • Shut-down input
  • ATEX and IECEx approved
DC Output24-28Vdc
Input AC 100-240V  (-15%/+10%)
Size (WxHxD)125 x 124 x 127mm
Product Status Stock item 
Technical Data

Input Data
AC-Input Voltage AC 100-240V  (-15%/+10%)
DC-Input Voltage
EN61000-3-2(PFC-Norm) fulfilled
Harmonic Correctionactive
Power Factor0.99
Input Inrush Current Limitationactive
Peak turn on current17A/11A (D1)
External Input Fuse Recommendationmin. B-16A / C-16A

Output Data
Nominal Voltage24Vdc
Adjustment Range24-28V
Output Current Range40-34.3A
Output Current 34.3A at 28V
40A at 24V
Output Power960W
Power Reserves50% BonusPower®
max. Ripple and Noise Voltage100mVpp

Size (WxHxD)125mm x 124mm x 127mm
Weight per Piece (excluding packing)1900g
Operat. Temperature Range-25°C ... +70°C
Derating24W/°C at >+60°C
Mounting Method DIN-Rail
Efficiency, typ.94.6%
Power Losses, typ.54.8W
MTBF SN 29500 @ 40°C (h)300.000h
Connection methodScrew terminals
DC-OK Signalyes
D1)Peak current at 120Vac/230vac, independent of temperature
Commercial Information

Article NumberQS40.241
UPC Code875404001966
Country of originCZ/CN
Product 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 85044082
Warranty Period (Month)36
Packaging Unit1pc
Accessories / Complementary Units

Wall / panel mount bracketZM2.WALL
MOSFET redundancy moduleYR80.242
MOSFET redundancy moduleYR80.241
Buffer moduleUF40.241