QS20.481 - Power Supply

Power Supply QS20.481 SwissQprint Oryx 1

The power supply (QS20.481) is fitted to SwissQprint Oryx 1, Impala and Nyala UV flatbed printers.

It provides the machine's regulated voltages. A failed supply stops the machine.

On the unit photographed, the front panel and the rating plate identify a PULS power supply from the Dimension range, QS20 series. The rating plate shows an AC 100-240 V (±15 %), 50-60 Hz, 5.4-2.4 A input and an adjustable DC 48-55 V output, 10-8.7 A continuous and 15-13 A for 4 seconds.

Technical specifications

• OEM reference: QS20.481
• Brand: swissQprint
• Part type: Power supply (QS20.481)
• Reference: QS20.481
• Shipping: Shipped ready to install
• Power supply manufacturer: PULS
• Range (front panel): Dimension, QS20 Power Supply
• AC input (rating plate): 100-240 V (±15 %), 50-60 Hz, 5.4-2.4 A
• DC input (PULS data sheet): 110-150 V (-20 % / +25 %)
• Continuous DC output (rating plate): 48-55 V, 10-8.7 A
• DC output for 4 seconds (rating plate): 48-55 V, 15-13 A
• Power (front panel): DC 48 V, 480 W / 720 W (720 W for approx. 4 s according to the PULS data sheet)
• Operating temperature (rating plate): -25 to +60 °C
• Terminals (front panel): output + + − −; dry contact 13 14 DC ok; input N, L and earth
• Indicators (front panel): DC ok, Overload
• Cooling (PULS data sheet): convection, no external fan
• Efficiency (PULS data sheet): 92.8 / 94.3 % at 120 / 230 V AC
• Dimensions and weight (PULS data sheet): 82 × 124 × 127 mm (W × H × D), 1200 g
• Mounting (PULS data sheet): 35 mm DIN rail, input terminals at the bottom
• Markings (rating plate): UL Listed, CSA Class I Div 2 T3, CE, Germanischer Lloyd; IEC 60950-1 (CB), EN 50178, EN / IEC 60204-1, EN 61558-2-17, FCC Part 15

Compatibility & use

• SwissQprint Impala
• SwissQprint Nyala
• SwissQprint Oryx 1

Function

• Power supply unit
• Provides the machine's regulated voltages
• Component to replace in case of failure

Signs of wear

• Red Overload indicator on: output voltage below 90 % of the set value, or short circuit at the output (PULS data sheet)
• Internal fuse blown: internal fault in the power supply, which contains no repairable parts according to the PULS data sheet
• Machine no longer powers on
• Cut-outs or restarts
• Unstable voltages
• Dead power supply

Replacing this part restores the machine to proper working order.

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.