NES-350
NES series
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1.Features
‧AC input range selectable by switch ‧Protections: Short circuit / Overload / Over voltage / Over temperature ‧Cooling by free air convection ‧Withstand 300VAC surge input for 5 seconds. ‧Bulit-in constant current limting circuit ‧100% full load burn-in test ‧LED indicator for power on ‧Fixed switching frequency at 90 KHz ‧Low cost, high reliability, high efficiency and long life ‧2 years warranty 2. Specification
MODELNES-350-3.3NES-350-5NES-350-7.5NES-350-12NES-350-15NES-350-24NES-350-27NES-350-36NES-350-48OUTPUTDC VOLTAGE3.3 V5V7.5V12V15V24V27V36V48VRATED CURRENT60A60A46A30A23.2A14.6A13A9.7A7.3ACURRENT RANGE0~60A0~60A0~46A0~30A0~23.2A0~14.6A0 ~ 13A0~9.7A0~7.3ARATED POWER198W300W345W360W348W360W351W349W350.4WRIPPLE & NOISE (max.) Note.2150mVp-p150mVp-p150mVp-p150mVp-p150mVp-p150mVp-p200mVp-p240mVp-p240mVp-pVOLTAGE ADJ. RANGE2.97 ~ 3.7V4.5 ~5.6V6 ~ 9V10~ 13.5V13.5~18V20~26.4V26 ~ 32V32~40V41~56VVOLTAGE TOLERANCE Note.3+3% ,-4.5%±3.0%±2.0%±1.5%±1.0%±1.0%±1.0%±1.0%±1.0%LINE REGULATION±0.5%±0.5%±0.5%±0.5%±0.5%±0.5%±0.5%±0.5%±0.5%LOAD REGULATION±2.5%±2.0%±2.0%±1.0%±0.5%±0.5%±0.5%±0.5%±0.5%SETUP, RISE TIME1000ms, 50ms/230VAC 1000ms, 50ms/115VAC at full loadHOLD UP TIME (Typ.)20ms/230VAC 16ms/115VAC at full loadINPUTVOLTAGE RANGE Note 790 ~ 132VAC / 180 ~ 264VAC selected by switch 254 ~ 370VDCFREQUENCY RANGE47 ~ 63HzEFFICIENCY (Typ.)74%78%80%83%84%87%88%87.5%87.5%AC CURRENT (Typ.)7A/115VAC 4A/230VACINRUSH CURRENT (Typ.)40A/115VAC 60A/230VACLEAKAGE CURRENT<3.5mA / 240VACPROTECTIONOVERLOAD105~ 135% rated output powerProtection type :Constant current limiting, recovers automatically after after fault condition is recoverOVER VOLTAGE3.8-4.6V5.75 ~ 7.5V9.4 ~ 11.25V13.8~ 16.2V18 ~ 21V27.6~ 32.4V33.7 ~ 39.2V41.4~ 46.8V57.6~ 67.2VProtection type : Shut down O/P voltage, re-power on to recoverOVER TEMPERATURE90°C±5°C (3.3-7.5V) , 85°C±5°C 12-15V) ,80°C±5°C (24V), 75°C±5°C (27-48V), (TSW1) Detect on caseProtection type : Shut down O/P voltage, recovers automatically after temperature is gose downENVIRONMENTWORKING TEMP.-20 + 60℃(Refer to load derating curve")WORKING HUMIDITY20 ~ 90% RH non-condensing C34STORAGE TEMP., HUMIDITY-20 ~ +85℃, 10 ~ 95% RHTEMP. COEFFICIENT± 0.03%℃/ (0 ~ 50 ℃ )VIBRATION10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axesSAFETY & EMC Note 8WITHSTAND VOLTAGEI/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVACISOLATION RESISTANCEI/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RHOTHERSMTBF234.3 Khrs min. MIL-HDBK-217F (25℃)DIMENSION215*115*50mm (L*W*H)3. Mechanical Dimension
4. Block Diagram
5.Derating Curve
6.Static Characteristics
7. Please Note
1. All parameters not specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12 twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 3.Tolerance: includes set up tolerance, line regulation and load regulation. 4.Please connect positive pole of input voltage to mark “L” of the terminal block and connect negative pole of input voltage with mark “N” of the terminal block. using DC voltage for input voltage. 
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