DIN-rail power supplies for 3-phase systems
48V, 20A

  • Width only 96mm
  • Efficiency up to 96%
  • Good output regulation of a wide input voltage range
  • 25% Power reserves available up to 15s
  • Full output power between -25 and +60°C
  • Excellent power factor, negligibly low inrush current

Output 48Vdc
Input AC 400V  (± 15%)
Size (WxHxD) 96 x 124 x 159mm
Weight 1400g
Order information Stock Item 
Product Description
The DIMENSION X-series power supplies include a new and innovative concept for generating an isolated DC voltage from a three-phase mains system. A semi-regulated resonant converter enables a very compact design, maximum efficiency and extremely competitive pricing with only a small compromise in the output voltage regulation, output ripple and hold-up time. Weighing just 1.4 kg, the device provides 960 watts of continuous output power and an additional 25 % power reserve for dynamic loads. The light-weight design along with compact dimensions facilitates straightforward mounting on DIN-rails. Primary use are applications involving supplies to motors, valves and other load circuits with a high power consumption and where an accurate output voltage regulation (which is standard on traditional switched-mode power supplies) is not required. Furthermore, these switched-mode power supplies can often replace mains transformers with rectifiers.
Technical Data
Input Data
AC-Input Voltage AC 400V  (± 15%)
DC-Input Voltage
EN61000-3-2(PFC-Norm) fulfilled
Harmonic Correctionactive
Power Factor0.93
Input Inrush Current Limitationactive
Peak turn on current2A
External Input Fuse Recommendationmin. B-6A / C-3A
Output Data
nominal Voltage 48Vdc
Adjustment Range 48
Output Current Range 20A
Output Current 20A at 48V
Output Power 960W
Power Reserves25% Power Reserves
max. Ripple and Noise Voltage2500mVpp
Size (WxHxD) 96mm x 124mm x 159mm
Weight per Piece (excluding packing) 1400g
Operat. Temperature Range-25°C ... +70°C
Derating24W/° at >+60°C
Mounting Method DIN-Rail
Efficency, typ.96.0%
Power Losses, typ.40W
MTBF SN 29500 @ 40°C (h)540.000h
Connection methodScrew terminals
D2) At 3x400 Vac, independent of temperature
Commercial Information
Article Number XT40.481
UPC Code 875404000891
Country of origin CZ
Order information Stock Item 
E Classification eClass 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 Unit 1pc
Accessories / Complementary Units
Wall / panel mount bracket ZM2.WALL
Adapter for Siemens S7-300 rail SLZ14
MOSFET redundancy module YR40.482