Upon
many requests we are proud to introduce the Nexus NX-4090
power supply. The latest edition to our power supply
series is a 400 Watt (true power) power supply
based on the successful design of the NX-3500. The Nexus
NX-4090 produces an amazing 16.2 dB(A) in idle
mode and surely leads the market.
True
400 Watt Power - Real Silent 16.2 dB(A)
Retail box:
Picture
coming soon!
Features:
Real
silent power supply, only 16.2 dB(A) in idle
mode
Real
silent large 12 cm orange fan
Extra
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
2
SATA connectors
Specifications:
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:
15.0mS
minimum: at 115V / 50 Hz
12.0mS
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.)
+12V1
: 15.5V(max.)
+12V2
: 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
: 80A(max.)
+5V
: 68A(max.)
+12V1
: 45A(max.)
+12V2
: 45A(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.)
+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 70% min. measured at
normal AC mains voltage and frequency with maximum
loads on all outputs.
Power
good signal: 115/230V (full load): 100-500mS
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 3.5mA
Output
Characteristics:
Minimum
Normal
Maximum
Load
REG.
Line
REG.
Ripple
& Noise
Load
Load
load
+3,3V
0.5A
15.0A
3.0/30A
±5%
±1%
50mV P-P
+5V
1.0A
14.0A
10.0/28A
±5%
±1%
50mV P-P
+12V1
1.0A
7.0A
4.5/14A
±5%
±1%
120mV P-P
-12V2
1.0A
8.5A
5.55/15A
±5%
±1%
120mV P-P
-12V
0.0A
0.4A
0.5A
±10%
±2%
120mV P-P
+5Vsb
0.0A
1.0A
2.0A
±5%
±1%
50mV P-P
(1) +3.3V &
+5V total output not exceed 150Watt. When
+3.3V is load to 30A, the +5V maximum load
is 10.0A. When +3.3V is load to 3.0A, the
+5V maximum load is 28A.
(2) +3.3V &
+5V & +12V total output not exceed 385Watt.
transformer 
