S-400 Type Switching Power SupplyDetailed product description：

S-400 Switching Power Supply

model performance	S-400-7	S-400-9	S-400-12	S-400-13.8	S-400-24	S-400-48
DC output voltage	7V	9V	12V	13.8V	24V	48V
Output voltage tolerance (Note 2)	±1%	±1%	±1%	±1%	±1%	±1%
Rated output current	55A	43A	33A	29A	17A	8.3A
Output current range	0-55A	0-43A	0-33A	0-29A	0-17A	0-8.3A
Ripple and noise (Note 3)	240mVp-p	240mVp-p	240mVp-p	240mVp-p	240mVp-p	300mVp-p
Stability of incoming line (Note 4)	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
Load stability (Note 5)	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
DC output power	385W	387W	396W	400W	400W	400W
efficiency	84%	84%	83%	85.5%	86.5%	87%
Adjustable range of DC voltage	±10%	±10%	±10%	±10%	±10%	±10%
Input voltage range	900~132VAC/180~264VAC select 47~63Hz; 254~370VDC
input current	5.6A/115V 2.8A/230V
inrush current	30A/115V 60A/230V
leakage current	< 3.5mA/240VAC
overload protection	115% to 135% cut off output reset: automatic recovery
overvoltage protection	13.8-16.2V	15.5-18.2V	18-21V	27.6-32.4V	31-36.5V	57.6-67.2V
High-temperature protection	RTH1 or RTH2>=50 ℃ FAN ON,<=45 ℃ FAN OFF,>=70 ℃ cut-off output
temperature coefficient	±0.03%/℃(0～50℃)
Start, rise, and hold time	1.5s,50ms,20ms
seismic resistance	10-500Hz, 2G 10min./1 cycle, duration 60 minutes, each axis
pressure resistance	Input/output room: 3KVAC, input and enclosure: 1.5KVAC, output and enclosure: 0.5KVAC
Isolation resistor	Between input and output, input and casing, output and casing: 500VDC/100M Ω
Working temperature and humidity	-10℃～+45℃,20%～90%RH
Storage temperature, temperature	-20℃～+85℃,10%～95%RH
Overall dimensions	226*125*65mm
weight	2.3Kg
safety standards	UL1950,EN60950
EMC standard	EN55022,EN55024,EN61000,IEC1000-4.2,3,4,5,6,8,11,IEC1000-3-2
Other Performance	……

Note:
1. The above parameter testing conditions are: 230VAC input, rated load, 25 ℃ 70% RH. Humidity.
2. Tolerance: including set tolerance, line stability, and load stability (Note 5).
3. Ripple test: Use A12 "twisted pair for 20MHz and short-circuit with 0.1uF&47uF capacitors for interruption.
4. Incoming voltage stability test: the lowest voltage to the highest voltage of the incoming line at full load.
5. Load stability test: load from 0% to 100%.
6 C3, 4 must be dismantled