the nfs50 series is a 50w universal input ac/dc power supply on a 6.3 x 3.94 inch card with a maximum component height of 1.5 inches for use in 1u applications. the nfs50 series can regulate on the auxiliary outputs down to no load making it suitable for applications that require a heavy logic load on the main 5v output and low nominal loads with high peak capability for drives, relays or switches on the auxiliary outputs. the nfs50 provides 50w of output power with free air convection cooling which can be boosted to 60w with 20cfm of air. standard features include overvoltage and short circuit protection. the series, with full international safety approval and the ce mark, meets conducted emissions en55022 level a. the nfs50 series is designed for use in low power data networking, computer, telecom and industrial applications such as pos terminals, servers, pabx's, industrial pc's and process automation. embedded power for business-critical continuity nfs50_7608j triple output special features ? 6.3 x 3.94 x 1.5 inch package (1u applications) ? overvoltage and short circuit protection ? 50w with free air convection cooling ? regulation to no load ? isolated output option ? en55022, en55011 conducted emissions level a ? ul, vde and csa safety approvals ? nfs50 medical iec601 approved ? available rohs compliant ? 2 year warranty total power: 50 - 60w input voltage: 85 - 264vac 120 - 370vdc # of outputs: triple safety vde0805/en60950/ iec950/iec1010 file no. 10401-3336-1036 licence no 1485 and 1650 ul1950 file no. e136005 csa c22.2 no. 950 file no. lr41062c rev.02.16.07 nfs50_7608j 1 of 4
rev.02.16.07 nfs50_7608j 2 of 4 embedded power for business-critical continuity all specifications are typical at nominal input, full load at 25 c unless otherwise stated specifications output specifications voltage adjustability +5v output 3% +12v tracks the 5v output line regulation ll to hl at max. load 0.3% total regulation main output (output 1) 2.5% all other outputs 5.0% (see notes 5, 6) overshoot/undershoot at turn-on 0% transient response 5v (2.5a to 5a) 500mv max. dev. 500s recovery to 0.5% 12v (1a to 2a) 300mv max. dev. 500s recovery to 0.5% temperature coefficient all outputs 0.03%/c, max. overvoltage protection +5v output 6.25v 0.65v output power limit primary power 90w pin max. limited 60w pout min. short circuit protection yes, with auto-restart input specifications input voltage range universal input 85 to 264vac 120 to 370vdc input frequency range 47 to 440hz input surge current 110vac, cold start 10a, max. 230vac, cold start 20a max. safety ground 132vac, 60hz 0.2ma, max. leakage current 264vac, 50hz 0.4ma, max. emc characteristics conducted emissions en55022, fcc part 15 level a radiated emissions en55022, fcc part 15 level a esd air en61000-4-2, level 3 perf. criteria 1 emc characteristics esd contact en61000-4-2, level 4 perf. criteria 1 surge en61000-4-5, level 3 perf. criteria 1 fast transients en61000-4-4, level 3 perf. criteria 2 radiated immunity en61000-4-3, level 3 perf. criteria 2 conducted immunity en61000-4-6, level 3 perf. criteria 2 general specifications hold-up time 110vac, 50w output power 16ms 230vac, 50w output power 100ms efficiency 70%, typ. isolation voltage input/output 3000vac input/chassis 1500vac switching frequency variable 25khz to 250khz approvals and vde0805, en60950, iec950 standards iec1010, csa c22.2 no. 950 weight 400g (14oz) mtbf (see note 7) mil-hdbk-217e, 25c 160,000 hours environmental specifications thermal performance operating range 0c to +70c (see derating curve) non-operating C40c to +85c 0c to 50c ambient temp., 50w convection cooled 0c to 50c ambient, 60w forced air @ 20 cfm 50c to 70c ambient derate linearly to 50% load peak (30 seconds) 60w relative humidity non-condensing 5% to 95% rh altitude operating 10,000 feet max. non-operating 30,000 feet max. vibration (see note 9) 5hz to 500hz 2.4g rms (approx)
rev.02.16.07 nfs50_7608j 3 of 4 embedded power for business-critical continuity specifications contd. notes 1 convection cooled, maximum 50w output power. 2 peak outputs lasting less than 30 seconds with duty factor less than 10%. during peak loading output may go outside total regulation limits. maximum output during peak loading is 60 watts. 3 forced air, 20 cfm at 1 atmosphere. 4 figure is peak-to-peak. output noise measurements are across a 50mhz bandwidth made using a 12 twisted pair, terminated with a 47f capacitor. 5 total regulation is defined as the static output regulation at 25c, including initial tolerance, line voltage within stated limits and output voltages adjusted to their factory settings. also, for stated i(2) regulation: i(1)/i(2)5. 6 a minimum load of 0.5 amps is required on the +5.1v output to obtain full current from the -12v output. 7 derating curve is application specific for ambient temperatures > 50c, for optimum reliability no part of the heatsink should exceed 110 o c and no semiconductor case temperature should exceed 115 o c. 8 caution: allow a minimum of 1 second after disconnecting the power when making thermal measurements. 9 three orthogonal axes, random vibration, ten minute test for each axis. 10 a 5 watt minimum load is recommended to achieve design mtbf. 11 this product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. 12 the j suffix indicates that these parts are pb-free (rohs 6/6) compliant. tse rohs 5/6 (non pb-free) compliant versions may be available on special request, please contact your local sales representative for details. output output currents ripple (4) total model voltage max (1) peak (2) fan (3) regulation (5,6) number (12) +5.1v (i 1 ) (6) 5.0a 7.0a 7.0a 50mv 2.5% NFS50-7608J +12.0v (i 2 ) 2.0a 5.0a 2.5a 120mv 5.0% -12.0v 0.5a 1.0a 0.7a 120mv 5.0% ac mating connector molex 09-50-3031 or equivalent with m olex 08-50-0105 or equivalent crimp terminal. dc mating connector molex 22-01-1043 or equivalent with molex 08-50-0031 or equivalent crimp terminal. all dimensions are in inches (mm) maximum component height is 1.5 (38.1) 3.15 (80.0) 0.40 (10.2) 4.80 (121.9) 3.94 (100.1) 0.75 (19.0) 6.30 (160.0) j2 j3 j4 j1 e1 output adjust 0.156 (3.96) dia. 4 places max height 38.1mm pin1 pin1 pin1 2 1 60w 50w 20 cfm forced air cooling 25w 0 c 10 c 20 c 30 c 40 c 50 c 60 c 70 c derating curve output power (watts) 5w minimum load required to achieve design mtbf natural convection cooling 30w pin connections j1 NFS50-7608J pin 1 ac line pin 2 ac neutral j2, j3, j4 pin 1 -12v pin 2 +12v pin 3 return pin 4 +5.1v e1 pin 1 ground
embedded power for business-critical continuity rev.02.16.07 nfs50_7608j 4 of 4 emerson network power and the emerson network power logo are trademarks and service marks of emerson electric co. ?2007 emerson electric co. emerson network power. the global leader in enabling business-critical continuity. emersonnetworkpower. com ac power connectivity dc power embedded power inbound power integrated cabinet solutions outside plant precision cooling site monitoring and services americas 5810 van allen way carlsbad, ca 92008 usa telephone: +1 760 930 4600 facsimile: +1 760 930 0698 europe (uk) waterfront business park merry hill, dudley west midlands, dy5 1lx united kingdom telephone: +44 (0) 1384 842 211 facsimile: +44 (0) 1384 843 355 asia (hk) 16th - 17th floors, lu plaza 2 wing yip street, kwun tong kowloon, hong kong telephone: +852 2176 3333 facsimile: +852 2176 3888 for global contact, visit: www.powerconversion.com technicalsupport@powerconversion.com while every precaution has been taken to ensure accuracy and completeness in this literature, emerson network power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions.
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