Phoenix Switching Power Supply QUINT-PS/ 3AC/48DC/20

QUINT POWER power supply units – Maximum system availability with SFB technology



Input data



Nominal input voltage 3x 400 V AC ... 500 V AC
AC input voltage range 3x 320 V AC ... 575 V AC
DC input voltage range 450 V DC ... 800 V DC
AC frequency range 45 Hz ... 65 Hz
DC frequency range 0 Hz
Current consumption 3 x 2.1 A (400 V AC)
  3 x 1.7 A (500 V AC)
Inrush surge current < 20 A (typical)
Power failure bypass > 25 ms (400 V AC)
  > 35 ms (500 V AC)
Permissible backup fuse B6
  B10
  B16
Additional text AC: 3 x circuit breaker - recommended fuse
Type of protection Transient surge protection
Protective circuit/component Varistor



Output data


Nominal output voltage 48 V DC ±1%
Setting range of the output voltage 30 V DC ... 56 V DC (> 48 V constant capacity)
Output current 20 A (-25°C ... 60°C, UOUT = 48 V DC)
  22.5 A (with POWER BOOST, -25 °C ... 40 °C permanently, UOUT = 48 V DC)
  100 A (SFB technology, 12 ms)
Magnetic fuse tripping B10
  C6
Derating 60 °C ... 70 °C (2.5%/K)
Connection in parallel Yes, for redundancy and increased capacity
Connection in series Yes
Current limitation Approx. IBOOST = 22.5 A (for short-circuit)
Control deviation < 1 % (change in load, static 10% ... 90%)
  < 4 % (change in load, dynamic 10% ... 90%)
  < 0.1 % (change in input voltage ±10%)
Residual ripple < 50 mVPP (with nominal values)
Maximum power dissipation idling 24 W
Power loss nominal load max. 70 W