NX-3500 ƒpƒ[ƒTƒvƒ‰ƒC

NX-3500 Real Silent Power Supply 350Watt Special Edition

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The Nexus NX-3500 Special Edition is the latest edition to the Nexus Real Silent power supply series. The Nexus NX-3500 Special Edition is equipped with a large 12 cm fan which provides sufficient airflow to cool the power supply at very low speed and at a very low noise level. This power supply configuration produces only 19.2 dB(A) in idle mode and will be inaudible when mounted in a computer system as the fan will be located on the inside of the computer case. The NX-3500 has longer power cables and is SATA ready!


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Real silent power supply, only 19.2 dB(A) in idle mode
Real silent large 12 cm orange fan

High efficiency,
Excellent air flow
Output over voltage protection
Short circuit protection on all output

Reset Table power shut down
Approved by: TÜV, CSA, UL, NEMKO, FCC, C-tick, BSMI, CE

100% burn-in under high ambient temperature (50oC)

Vacuum-impregnated transformer

MTBF: 100K hours at 25oC

100% Hi-pot tested

Line input fuse protection

Longer power cables

SATA ready!
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Remote ON/OFF Control: The power supply shall accept a logic open collector level which will disable/enable all out put voltage (excluding +5V standby)
Output voltage hold-up time: 10.0mS minimum: at 230V / 50 Hz.
Operation at no load: The power supply will be capable of being operated with no load on any or all outputs without damage.
Over voltage protection:
   +5V : 6.5V(max.)
   +3.3V : 4.6V(max.)
   +12V : 15.5V(max.)
Over current protection: There shall be protection from an output over-current event. The power supply may shutdown from such an event and require power-on restart. Testing consists of application of the listed over-current value with maximum load on all other outputs. Over-current test values: (maximum load)
   +3.3V : 81A(max.)
   +5V : 65A(max.)
   +12V : 30A(max.)
Short current protection: A short circuit at any output shall cause no damage to the power supply nor blow the primary fuse. The power supply may shut down in the event of a short circuit and require power-on restart. A short circuit consists of application of a test resistance of less then 0.05 ohms at each output with maximum load on all outputs.
Output risetime: The cold-start enable output voltage risetime of all outputs shall be measured with maximum load on all outputs. Risetime (10-90%):
   +3.3V 20mS (max.)
   +5V 20mS (max.)
   +12V 20mS (max.)
   -12V 20mS (max.)
   -5V 20mS (max.)
   +5Vsv 20mS (max.)
Output overshoot: No output voltage shall overshoot or generate spikes at turn-on or turn-off, during momentary power loss, output short, or realistic input voltage or output load changes. Overshoot is defined as any output that exceeds the voltage tolerance plus or minus an additional 5%.
Efficiency: Overall efficiency must be 65% min. measured at normal AC mains voltage and frequency with maximum loads on all outputs.
Power good signal: 230V (full load): 100-500mS
Temperature range:
   operating 0oC`50oC
   storage -20oC`+65oC
Relative Humidity: 90%
Safety requirements: TUV, NEMKO + CB REPORT
Dielectric strenght: Primary to frame ground: 1800 Vac for 1 sec. Primary to secondary: 1800 Vac for 1 sec.
Insulation resistance: Primary to secondary: 20 Meg. ohms min. Primary to frame ground: 20 Meg. ohms min.
Ground leakage current: The power supply ground leakage current shall be less than 0.5mA
Emission requirements: The power supply ground leakage current shall be less than 3.5mA
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Minimum

Normal Maximum

Load REG.

Line REG.

Ripple & Noise


Load

Load load
+3,3V 0.3A 14.0A 21.2/28A }5% }1% 50mV P-P
+5V 1.0A 12.7A 30/25.5A }5% }1% 50mV P-P
+12V 0.2A 4.5A 16A }5% }1% 120mV P-P
-12V 0.0A 0.4A 0.8A }10% }2% 120mV P-P
-5V 0.0A 0.15A 0.3A }10% }2% 100mV P-P
+5Vsb 0.0A 1.0A 2.0A }5% }1% 50mV P-P






(1) +3.3V & +5V total output not exceed 220Watt. When +3.3V is load to 28A, the +5V maximum load is 25.5A. When +3.3V is load to 21.2A, the +5V maximum load is 30A.
(2) +3.3V & +5V & +12V total output not exceed 330Watt.


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