output specifications voltage adjustability +5v output 5.0% auxiliaries 3.0% line regulation ll to hl, fl main output 0.1% max. total regulation see note 4 1.0% overshoot/undershoot at turn-on 0% transient response +5.1v 150mv max. dev. (35a to 50a step) 500s recovery temperature coefficient all outputs 0.02%/c overvoltage protection +5v output, note 7 6.25v 0.5v output power limit 550w, min. short circuit protection foldback continuous see note 7 automatic recovery remote sense main output compensate up to 200mv fan output current note c 12v/0.75a input specifications input voltage range autoranging 90 to 132vac 180 to 264vac input frequency range 47hz to 63hz input surge current 110/230vac 40a safety ground 110vac, 60hz 0.6ma, max. leakage current 230vac, 50hz 1.6ma, max. nfs350 series triple and quad output [ 2 year warranty ] ? autoranging input ? overvoltage protection on main output ? short circuit protection with auto restart ? power fail detect ? vde, ul, csa and babt approved ? floating, fully adjustable fourth output ? 12vdc fan connection ? conducted noise to en55022-a, fcc level b the nfs350 series of triple and quad output 350 watt open frame switchers is designed for use with larger digital systems. high power density allows a very compact system design. the advanced topology yields very well regulated outputs that eliminate the need for inefficient dissipative regulators. the unique floating fourth output allows a user configurable output voltage, adjustable from 4.5v to 30v, either positive or negative, at up to 4a. these supplies are approved to ul, csa, vde and babt and their built-in line filter reduces conducted noise below fcc level b and vde 0871 level a. nfs350 series power supplies are suitable for a wide range of general industrial applications, including process automation, robotics, networking, lighting systems and telecoms. they are particularly suited for shelf power in miniature rack systems or subracks. specification all specifications are typical at nominal input, full load at 25 c unless otherwise stated page 1 electromagnetic compatibility specifications conducted emissions en55022, level a radiated emissions en55022 esd air en61000-4-2, level 3 perf. criteria 1 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 1 radiated immunity en61000-4-3, level 3 perf. criteria 1 conducted immunity en61000-4-6, level 3 perf. criteria 1 general specifications hold-up time 230vac, after power failure 20ms 230vac, after pfd flag 5ms efficiency 230vac, fl 70% typical isolation voltage input/output 3000vac input/chassis 1500vac switching frequency variable approvals and safety vde0805, en60950, iec950 standards iec1010, ul1950, babt csa c22.2 no. 950 weight 1.9kg (67.07oz) mtbf mil-hdbk-217e 66,000 hours environmental specifications thermal performance operating, see curve 0c to +70c non-operating C40c to +85c 0c to 50c, 350w 30cfm forced air 50c to 70c, derate 8.75w/c 30cfm forced air thermal switch +85c typical trip temperature, note 7 peak power (60s) 450w relative humidity non-condensing 5% to 95% rh altitude operating 10,000 feet max. non-operating 40,000 feet max. vibration, 5hz to 500hz three orthogonal axes 2.4g rms random vibration, 10 min. test for each axis
pin connections tb1 NFS350-7608P nfs350-7625p nfs350-7626p term 1 ac ground ac ground ac ground term 2 ac neutral ac neutral ac neutral term 3 ac live ac live ac live tb2 term 1 +12v, C12v ret. +12v, C12v ret. +12v, C12v ret. term 2 C12v C12v C12v term 3 +12v, C12v ret. +12v, C12v ret. +12v, C12v ret. term 4 +12v +12v +12v term 5 +12v +12v +12v stud 1 +5.1v (v1) +5.1v (v1) +5.1v (v1) stud 2 +5.1v return +5.1v return +5.1v return tb3 term 1 v4 return v4 return term 2 +aux output (v4) +aux output (v4) j1 pin 1 +5.1v sense +5.1v sense +5.1v sense pin 2 +5.1v ret. sense +5.1v ret. sense +5.1v ret. sense pin 3 pfd pfd pfd pin 4 pfd return pfd return pfd return pin 5 fan +12v ret. fan +12v ret. fan +12v ret. pin 6 fan +12v fan +12v fan +12v output output currents total model number voltage min peak (1) fan (2) ripple (3) regulation (4) +5.1v 5.0a 70a 50.0a 50mv 1% NFS350-7608P +12.0v 0.3a 20.0a 12.0a 120mv 1% C12.0v 0.3a 7.0a 5.0a 120mv 1% +5.1v (v1) 5.0a 70a 50.0a 50mv 1% nfs350-7625p +12.0v (v2) 0.3a 20.0a 12.0a 120mv 1% C12.0v (v3) 0.3a 7.0a 5.0a 120mv 1% 4.5-16.5 (v4) (5) 0a C 4.0a 100mv 1% +5.1v (v1) 5.0a 70a 50.0a 50mv 1% nfs350-7626p +12.0v (v2) 0.3a 20.0a 12.0a 120mv 1% C12.0v (v3) 0.3a 7.0a 5.0a 120mv 1% 15v-30v (v4) (6) 0a C 4.0a 100mv 1% notes 1 peak output current lasting less than 60 seconds with duty cycle less than 3%. during peak loading, outputs may go outside of total regulation limits. total peak power may not exceed 450w. 2 forced air, 30 cfm at 1 atmosphere or 350lfm. 3 figure is peak-to-peak. output noise measurements are made across a 50mhz bandwidth using a 12 twisted pair terminated with a 47f capacitor. 4 total regulation is defined as the static output regulation at 25c, including initial tolerance, line voltage within stated limits, load currents within stated limits, and output voltages adjusted to their factory settings. 5 floating output can be adjusted from 4.5v to 16.5v and referenced as either positive or negative. 6 floating output can be adjusted from 15v to 30v and referenced as either positive or negative. 7 output shorts will cause all outputs to fold back, protecting the supply from damage. an overvoltage or overtemperature condition will trip the output crowbar, shorting the outputs and also cause foldback. when the fault condition is cleared, the supply will automatically recover. this supply can be configured to latch off in the event of any output short. disconnecting line power for 15 seconds will reset the latch. see mechanical note b. 8 derating curve is application specific for ambient temperatures > 50c, for optimum reliability no part of the heatsink should exceed 90 o c and no semiconductor case temperature should exceed 100 o c. 9 caution: allow a minimum of 1 second after disconnecting the power when making thermal measurements. 10 this product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. international safety standard approvals vde0805/en60950/iec950/iec1010 file no. 10401-3336-1050 licence no. 3613 ul1950 reg. file no. e136005 csa c22.2 no. 950 file no. lr41062c/lr50913/lr101320 certificate no. ps/603177 power fail detect signal 50ms t1 200ms t2 will vary with line and load t3 3 5ms pout: 350w pfd output is an open collector which will sink 40ma in the low state high t1 t2 t3 4.75v 3.5v min 0-4 max low 4.75v 5v output pfd signal ac input 350 watt ac/dc universal input switch mode power supplies ac/dc power supplies | 350w ac page 2 http://www.artesyn.com
.250 (6.4) 1.800 (45.7) 2.50 (63.5) 6-32 screw thread (4 pl) .77 (19.6) 3.300 (83.8) 5.00 (127) 8-32 screw thread (4 pl) max screw penetration from bottom of chassis .250" .75 1.800 (45.7) 2.5 (63.5) 6-32 screw thread (4 pl) .250 (6.4) 10.50 (267) 9.000 (228.6) f2 5a 125vac c7 c8 5a, 250vac tb1 f1 control board output # 4 pcb bus 1 bus 2 ts1 tb3 2 1 tb2 j1 t1 pin 1 pin 1 pin 6 pin 1 + 5.1v ret + 5.1v thermal sensor tb3 tb2 j1 (C) (+) 1 all dimensions in inches (mm) d e f b g a (19.1 ) typ. 1 tb1 connector kulka p/n 4597a-03 or equivalent. tb2 connector kulka p/n 4597a-05 or equivalent, 1 / 4 -20 studs, 1 / 2 inch max. penetration. tb3 connector use #6 fork terminal connector or equivalent. j1 connector molex 22-05-3061. mating connector is molex 22-01-2067 or equivalent with molex 08-50-0114 or equivalent crimp terminal, see note c. mechanical notes a minimum clearance distance to any external grounded metal plate or chassis is 2mm. b removing r15 causes the power supply to latch off in the event of output short, over-voltage or over-temperature. removing the line power for 15 seconds will reset the latch. c fan current must be subtracted from the available +12v current. d +5v output adjustment pot. e +12v output adjustment pot is located on the main pcb, and can be accessed through this hole. use a philips head plastic adjustment tool. f C12v output adjustment pot is located on the main pcb, and can be accessed through this hole. use a philips head plastic adjustment tool. g auxiliary fourth output adjustment pot. h a standard cover and fan assembly can be added during manufacturing. details are on page 65. to order, add suffix cf to the model number. e.g. NFS350-7608Pcf . 32w minimum load required to maintain regulation 350w 0w 32w 175w forced air cooling (30cfm) 0 c 10 c 20 c 30 c 40 c 50 c 60 c 70 c derating curve output power (watts) 350 watt ac/dc universal input switch mode power supplies ac/dc power supplies | 350w ac page 3
page 4 http://www.artesyn.com ds_nfs350_19980401.pdf
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