SEMI-REGULATED POWER SUPPLY • • • • • • • • • • • • • Alternative or Replacement for AC Transformer Three Phase Input – DC Output DIN-Rail Mountable Width only 96mm 96% Efficiency 125% Peak Power Capability No Input Inrush Current Active Input Transient Blocker Full Power Between -25°C and +60°C Easy Failure Diagnostics No Electrolytic Capacitors on Input Side Cost Effective and Robust 3 Year Warranty Primary use are applications involving supplies to motors, valves and other load circuits with a high power consumption, 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. DC 48V none 20A 25A Output power 960W 1200W Output ripple < 2500mVpp < 300mVpp Input voltage 3AC 400V 3AC 480V Mains frequency 50-60Hz AC Input current 1.65A / phase 1.4A / phase Power factor 0.93 AC Inrush current typ. 2A peak Efficiency 96.0% Losses 40.0W Temperature range -25°C to +70°C Derating 24W/°C Dimensions 96x124x159mm The power supplies in the Dimension X-Series 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 facilitate straightforward mounting on DIN-rail. Power Supply Accessory 400V Input 480V Input 48V Buffer Unit Output voltage Adjustment range Output current Jan. 2007 / Rev. 1.0 DS-XT40.48x-EN All parameters are specified at 48V 20A, 3x400Vac (XT40.481) or 3x480Vac (XT40.482), 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0

INTENDED USE The power supply shall only be installed and put into operation by qualified personnel. This power supply is designed for installation in an enclosure and is intended for the general use, such as in industrial control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life. PE is the abbreviation for Protective Earth and has the same meaning as the symbol Earth, Ground This document uses the term “earth” which is the same...

5. AC-INPUT AC input Mains arrangement AC input range Input frequency Turn-on voltage Shut-down voltage Input current Power factor **) Turn-on overshoot Start-up delay ***) Rise time *) **) ***) consult factory if one phase is earthed fully regulated output (±2%), Pout > 48W permanently allowed, see Fig. 5-1 for output voltage regulation Absolute maximum input voltage with no damage to the power supply. Output might be off at this level. ±6% see Fig. 5-2 see Fig. 5-2 at 20A, symmetrical input, see Fig. 5-4 at 20A, symmetrical input, see Fig. 5-5 see Fig. 5-3 over the entire load range, see Fig....

Fig. 5-2 Input voltage range Intput Voltage fully regulated range Start-up delay Fig. 5-4 Input current vs. output load Output Current Output Current Rise Time Fig. 5-5 Power factor vs. output load Input Current per Phase, typ. Output Voltage Fig. 5-3 Turn-on behavior definitions 6. INPUT INRUSH CURRENT There is virtually no input inrush current surge as there are no electrolytic bulk-capacitors utilized on the input side of the power supply. The charging current into the EMI suppression capacitors is disregarded for the first millisecond after switch-on. Inrush current Inrush energy Inrush delay...

7. OUTPUT Output voltage Output voltage adjustment range Output current Short-circuit current Output power Line regulation Load regulation Ripple and noise voltage *) Output capacitance The output voltage is fixed. No adjustment possible continuous, see Fig. 7-1 up to 15s with full output voltage, see Fig. 7-1 load impedance 50mOhm, see Fig. 7-1 Note: The short-circuit current is available for 0.1s continuous up to 15s see Fig. 5-1 static value, 0A 20A 0A static value, 2.5A 20A 2.5A 20Hz-2kHz, 50Ohm 2kHz to 20MHz, 50Ohm *) The ripple and noise voltage mostly consist of a mains ripple with 300Hz...

8. HOLD-UP TIME Hold-up Time Hold-up Time The energy is stored in the output capacitor. As soon as the input is turned off, the output capacitor will be discharged and the voltage will dissipate according to the curves in Fig. 8-2. The lighter the load, the longer the hold-up time. Half the load means twice the hold-up time. The hold-up time depends on the load characteristic. The curves below show the hold-up time for a load with a resistive and a constant power characteristic. The hold-up time is defined as the period of time when the input is turned off and until the output voltage falls below...

□innerusiofu -x-series I 9. EFFICIENCY AND POWER LOSSES Power losses Fig. 9-1 Efficiency vs. output current Fig. 9-2 Losses vs. output current Output Current Power Losses Fig. 9-3 Efficiency vs. input voltage, 48V, 20A Fig. 9-4 Losses vs. input voltage, 48V, 20A Power Losses 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

□innerusiofu -x-series I 11. FRONT SIDE AND USER ELEMENTS Output Terminals - Large screw terminal - Negative (return) appropriate wire size. JiniUU. Temperature Input Terminals Screw terminals Line inputs Earth) input Power Supply Indicates a normal operation. The LED is on if the output voltage is higher than 43.2V. A steady-state light indicates an output current higher than the nominal current and that the internal shutdown timer is - A double flash indicates a phase-loss or too low/too high input voltage. A fast flash warns of an impending temperature shut-down. A shut-down can be expected...