CPS20.481 48V, 10A, SINGLE PHASE INPUT POWER SUPPLY AC 100-240V Wide-range Input Width only 65mm Efficiency up to 93.9% Excellent Partial Load Efficiency 20% Output Power Reserves Safe HiccupPLUS Overload Mode Easy Fuse Tripping due to High Overload Current (typ. 45A for 15ms) Active Power Factor Correction (PFC) Minimal Inrush Current Surge Full Power Between -25°C and +60°C DC-OK Relay Contact Current Sharing Feature for Parallel Use 3 Year Warranty GENERAL DESCRIPTION SHORT-FORM DATA The Dimension C-Series are cost optimized power supplies without compromising quality, reliability and performance. The C-Series is part of the DIMENSION power supply family. The most outstanding features of CPS20.481 are the high efficiency, electronic inrush current limitation, active PFC, wide operational temperature range. Output voltage Adjustment range Output current The C-Series includes all the essential basic functions. The devices have a power reserve of 20% included, which may even be used continuously at temperatures up to +45°C. Additionally, the CPS20.481 can deliver about 4 times the nominal output current for 15ms which helps to trip fuses on faulty output branches. High immunity to transients and power surges as well as low electromagnetic emission, a DC-OK relay contact and a large international approval package for a variety of applications makes this unit suitable for nearly every situation. ORDER NUMBERS DC 48V 48 - 56V 10A 12A 8.6A 10.3A Output power 480W 576W Output ripple < 50mVpp AC Input voltage AC 100-240V Mains frequency 50-60Hz AC Input current 4.36 / 2.33A Power factor 0.99 / 0.95 AC Inrush current typ. 9 / 7A peak Efficiency 92.6 / 93.9% Losses 38.4 / 31.2W Temperature range -25°C to +70°C Derating 12W/°C Hold-up time typ. 26 / 26ms Dimensions 65x124x127mm Weight 1000g / 2.2lb Power Supply Wall mount bracket Side mount bracket Redundancy module Marine, pending May. 2013 / Rev. 1.3 DS-CPS20.481-EN All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0

CPS20.481 48V, 10A, SINGLE PHASE INPUT The information presented in this document is believed to be accurate and reliable and may change without notice. No part of this document may be reproduced or utilized in any form without permission in writing from the publisher. 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 as the U.S. term “ground”. To be defined, value or description will follow later. A figure displayed with the AC or DC before the value represents a nominal voltage with standard...

CPS20.481 48V, 10A, SINGLE PHASE INPUT 1. INTENDED USE This device is designed for installation in an enclosure and is intended for the general professional use such as in industrial control, office, communication, and instrumentation equipment. Do not use this power supply in aircraft, trains, nuclear equipment or similar systems where malfunction may cause severe personal injury or threaten human life. This device is designed for use in hazardous (pending), non-hazardous, ordinary or unclassified locations. 2. INSTALLATION REQUIREMENTS This device may only be installed and put into operation...

CPS20.481 48V, 10A, SINGLE PHASE INPUT 3. AC-INPUT AC input AC input range Allowed voltage L or N to earth Input frequency Turn-on voltage Shut-down voltage suitable for TN-, TT- and IT mains networks continuous operation short term or with output derating (1%/V) or with reduced ambient temperature, see Fig. 15-1, no damage between 0 and 100Vac < 500ms continuous, IEC 62103 ±6% steady-state value, see Fig. 3-1 steady-state value at 2.5A load, see Fig. 3-1 steady-state value at 5A load, see Fig. 3-1 steady-state value at 10A load, see Fig. 3-1 Turn-on overshoot Input current Power factor*) Crest...

□innefUSIOfU C-Series 48V, 10A, SINGLE PHASE INPUT Do not operate this power supply with DC-input voltage. Use the CPS20.481-D1 unit instead. I 5. INPUT INRUSH CURRENT An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage and after short input voltage interruptions. The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on. Inrush current*' Inrush energy*' Inrush delay typ. 11 Apeak 9APeak 7Apeak temperature independent typ. 940ms 940ms 740ms start-up delay plus rise time Fig. 5-1 Typical input...

CPS20.481 48V, 10A, SINGLE PHASE INPUT 6. OUTPUT Output voltage Adjustment range Ripple and noise voltage Output current Output power Factory settings Line regulation Load regulation Overload behaviour Short-circuit current Output capacitance *) guaranteed at clockwise end position of potentiometer ±0.2%, at full load, cold unit, in “single use” mode ±0.2%, at full load, cold unit, in “parallel use” mode at no load, cold unit, in “parallel use” mode 85-300Vac in “single use” mode: static value, 0A 10A; see Fig. 6-1 in “parallel use” mode: static value, 0A 10A, see Fig. 6-2 20Hz to 20MHz, 50Ohm...

□innefUSIOfU C-Series 48V, 10A, SINGLE PHASE INPUT Fig. 6-1 Output voltage vs. output current, Output Voltage (Single Use, typ.) , Output Current , Fig. 6-2 Output voltage in "parallel use" Output Voltage (Parallel Use, typ.) Output Current Fig. 6-3 Short-circuit on output. Hiccup1*"5 mode, typ. Short -circuit Fig. 6-4 Dynamic overcurrent capability, typ. Output Voltage (dynamic behavior, < 15ms) ustment _|___|___|__j_ Output Current , All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

□innefUSIOfU C-Series 48V, 10A, SINGLE PHASE INPUT Hold-up Time Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions Hold-up Time Input Voltage Zero Transition Hold-up Time j 8. DC-OK RELAY CONTACT This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-fed voltage from a unit connected in parallel to the power supply output. Contact closes As soon as the output voltage reaches 90% of the adjusted output voltage level. Contact opens As soon as the output voltage dips more than 10% below the adjusted output...