DIN-rail power supplies for 1-phase systems
24V, 20A

  • 200-240V Input
  • Efficiency up to 94,5%
  • Negligibly low input inrush current
  • 50% Power reserves available up to 4s
  • Full output power between -25 and +60°C
  • Quick-connect spring-clamp terminals
DC Output24-28Vdc
Input AC 200-240V  (± 15%)
Size (WxHxD)70 x 124 x 127mm
Product Status Stock item 
Technical Data

Input Data
AC-Input Voltage AC 200-240V  (± 15%)
DC-Input Voltage
EN61000-3-2(PFC-Norm) not fulfilled
Power Factor0.5
Input Inrush Current Limitationactive
Peak turn on current40A
External Input Fuse Recommendationmin. B-10A / C-6A

Output Data
Nominal Voltage24Vdc
Adjustment Range24-28V
Output Current Range20-17A
Output Current 17A at 28V
20A at 24V
Output Power480W
Power Reserves50% BonusPower®
max. Ripple and Noise Voltage100mVpp

Size (WxHxD)70mm x 124mm x 127mm
Weight per Piece (excluding packing)880g
Operat. Temperature Range-25°C ... +70°C
Derating12W/°C at >+60°C
Mounting Method DIN-Rail
Efficiency, typ.94.5%
Power Losses, typ.28.3W
MTBF SN 29500 @ 40°C (h)577.000h
Connection methodSpring-clamp terminals
DC-OK Signalyes
V1)Peak current at 230Vac, independent of temperature
Commercial Information

Article NumberQS20.244
UPC Code875404001317
Country of originCN
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
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DC-UPS control unitUB20.241