DIN-Rail Power Supplies for 1-phase Systems
48V , 10A

  • 100-240V Wide-range input, active PFC
  • Efficiency up to 94,3%
  • Negligibly low input inrush current
  • 50% Power reserves available up to 4s
  • Full output power between -25 and +60°C
  • Spring-clamp terminals, DC-OK contact

Output 48-55Vdc
Input AC 100-240V  (± 15%)
DC 110V-150V  (-20%/+25%)
Size (WxHxD) 82 x 124 x 127mm
Weight 1200g
Product Description
The most outstanding features of this DIMENSION Q-series DIN-rail power supply are the high efficiency and the small size, which are achieved by a synchronous rectification and further novel design details. The Q-series is part of the DIMENSION family, existing alongside the lower featured C-series. With short-term peak power capability of 150 % and built-in large sized output capacitors, these features help start motors, charge capacitors and absorb reverse energy, and often allow a unit of a lower wattage class to be used. High immunity to transients and power surges as well as low electromagnetic emission makes usage in nearly every environment possible. The integrated output power manager, a wide-range input voltage design and virtually no input inrush current make installation and usage simple. Diagnostics are easy due to the dry DC-OK contact, a green DC-OK LED and red overload LED. Unique quick-connect spring clamp terminals allow a safe and fast installation and a large international approval package for a variety of applications makes this unit suitable for nearly every situation.
Technical Data
Input Data
AC-Input Voltage AC 100-240V  (± 15%)
DC-Input Voltage DC 110V-150V  (-20%/+25%)
EN61000-3-2(PFC-Norm) fulfilled
Harmonic Correctionactive
Power Factor0.9
Input Inrush Current Limitationactive
Peak turn on current9A/7A (D1)
External Input Fuse Recommendationmin. B-10A / C-10A
Output Data
nominal Voltage 48Vdc
Adjustment Range 48-55V
Output Current Range 10-8.7A
Output Current 8.7A at 55V
10A at 48V
Output Power 480W
Power Reserves50% BonusPower®
max. Ripple and Noise Voltage100mVpp
Size (WxHxD) 82mm x 124mm x 127mm
Weight per Piece (excluding packing) 1200g
Operat. Temperature Range-25°C ... +70°C
Derating12W/° at >+60°C
Mounting Method DIN-Rail
Efficency, typ.94.3%
Power Losses, typ.29W
MTBF SN 29500 @ 40°C (h)469.000h
Type of Connection TerminalsSpring-clamp terminals
DC-OK Signalyes
D1) Peak current at 120Vac/230vac, independent of temperature
Various Information
Article Number QS20.481
UPC Code 875404001225
Country of origin CN
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 / Supplementary Units
Wall/Panel Mount Bracket ZM1.WALL
Side Mounting Bracket ZM15.SIDE
Adapter for Siemens S7-300 Rail SLZ13
MOSFET redundancy module YR40.482