Overview

PS3031-4820-0000 | Power supply 48 V, 20 A, 3-phase

Overview 1:

  • 3AC 380-480 V wide-range input
  • Three built-in input fuses
  • 95.4% full load and excellent part-load efficiencies
  • Width only 110 mm, weight only 1.5 kg
  • 150% peak power, 1440 W for up to 4 s
  • 55 A peak current over 25 ms for triggering fuses
  • Active power factor correction (PFC)
  • Active filtering of input transients
  • Negligible input inrush current surge
  • Full power between -25°C and +60°C
  • Option of current sharing for parallel connection
  • Controllable output voltage level
  • DC-OK relay contact
  • Shutdown input

The PS3031-4820-0000 is a 3-phase 48 V power supply with an output current of 20 A and an output power of 960 W.

On the input side, the device features a wide-range input, active power factor correction (PFC) and inrush current limiting.

The PS3031-4820-0000 features an Extra Power output with a maximum output power of 150% over 4 seconds and is able to trigger fuses precisely with a short-term peak current. A DC-OK LED, an overload LED and a potential-free relay contact monitor the status of the output voltage. The output voltage can be switched off by means of the shutdown contact.

The power supply is part of the PS3000 family and has a width of 110 mm.

Overview of technical data *)

Overview of technical data

PS3031-4820-0000

Output voltage

DC 48 V (nominal)

Adjustment range

48 - 54 V

Output current

20 - 17.8 A (continuous); 30 - 26.7 A (short-term for 4 s)

Output power

960 W (continuous); 1440 W (short-term for 4 s)

Output ripple

< 150 mVpp (20 Hz to 20 MHz)

Input voltage AC

3AC 380-480 V -15%/+20%

Mains frequency

50-60 Hz ±6%

Input current AC

1.65 / 1.35 A at 3 x 400 / 480 Vac

Power factor

0.88 / 0.90 at 3 x 400 / 480 Vac

Inrush current surge AC

typ. 4.5 A peak

Efficiency

95.4 / 95.2% at 3 x 400 / 480 Vac

Losses

46.3 / 48.4 W at 3 x 400 / 480 Vac

Operating temperature range

-25°C to +70°C

Derating

24 W / °C (+60°C to +70°C)

Hold-up time

Typ. 25 / 25 ms at 3 x 400 / 480 Vac

Dimensions (W x H x D)

110 x 124 x 127 mm (without DIN rail)

Weight

1500 g

Approvals/markings

CE, UKCA, cULus, EAC

*) All values typical for 48 V, 20 A, 3x 400 Vac, 25 °C ambient temperature and after a warm-up time of 5 minutes, unless otherwise stated.