NES-250W series compactsingle switching power supply
Features:
·AC input voltage rangeselected by switch
·Smallvolume，low weight，high efficiency
·Protections:shortcircuit/over load/over voltage/over temperature
·coolingby free air convection
·LEDindicator for power on
·100%full load burn-in test
·2Years warranty
| Model | NES-250-5 | NES-250-12 | NES-250-15 | NES-250-24 | NES-250-27 | NES-250-48 | |
|
output | DC voltage | 5V | 12V | 15V | 24V | 27V | 48V |
| Voltage tolerance | ±1% | ±1% | ±1% | ±1% | ±1% | ±1% | |
| Rated current | 40A | 20A | 16A | 10A | 9A | 5.2A | |
| Current range | 0~40A | 0~20A | 0~16A | 0~10A | 0~9A | 0~5.2A | |
| Rated power | 200W | 240W | 240W | 240W | 243W | 249.6W | |
| Ripple&noise | 150mvp-p | 150mvp-p | 180mvp-p | 180mvp-p | 180mvp-p | 200mvp-p | |
| DCvoltage ADJ.range | -9%~+10% | ±10% | ±10% | ±10% | ±10% | ±10% | |
|
input | Voltage range | 90~132VAC/180~264VAC(selected by switch)，254~373VDC | |||||
| frequency | 47~63HZ | ||||||
| AC current | 4.5A/115VAC，2.5A/230VAC | ||||||
| efficiency | 82% | 84% | 84% | 85% | 85% | 86% | |
| Inrush current | Cold start current25A/115VAC，40A/230VAC | ||||||
| Leakage current | < 2.5mA/240VAC | ||||||
|
protection | overload | Rated output power110%~135% start over load protection | |||||
| protection type:hiccup mode，auto-recovery after fault condition is removed | |||||||
| Over voltage | 6.8~8.2V | 15.6~17.8V | 18.6~20.8V | 30.6~33.2V | 42.6~44.2V | 54.8~56.6V | |
| protection type:hiccup mode，auto-recovery after fault condition is removed | |||||||
| Over temperature | TSW1detect on heatsink of power transistor≥95℃±5℃, start over temperature protection | ||||||
| protection type:hiccup mode，auto-recovery after temperature become normal | |||||||
| environment | Working temp,humidity | -10℃~+60℃，20%~90%RH | |||||
| Storage temp,humidity | -20℃~+85℃，10%~95%RH non-condensing | ||||||
| Withstand vibration | 10~500HZ，2G 10min/1cycle，period for 60 minutes，each axes | ||||||
| safety | Withstand voltage | I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC | |||||
| Isolation resistance | I/P-O/P,I/P-FG,O/P-FG:100Mohms/500VDC | ||||||
| Fit standard | Safety standard | Compliance to UL1012 | |||||
| EMC standard | Compliance toEN55022，CLASSA | ||||||
| others | Dimension | 199*99*48mm(L*W*H) | |||||
| Weight/packing | 0.7kg/24pcs/17.5kg/0.034 m³/1.2CUFT | ||||||
| note | 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and25℃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. | ||||||
