$37.40 - $38.50
Min. Order : 1 Piece

SP series 320W ac 220v to dc 48v smps LED 6.7a 48 volt power supply

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Port: Ningbo,shanghai
Payment Terms: L/C,T/T,Western Union,MoneyGram,Paypal ,Cash
Supply Ability: 5000 Piece/Pieces per Day 4 vdc power supply
Other name: super quality 4 vdc power supply
Usage: Power tool,Office,Appliance/Kitchen Appliance,Industrial Equipment etc
Place of Origin: Zhejiang China
Output Power: 301 - 400W
Output Type: Single
Output Current: 0~55A
Input Voltage: 220VAC,110VAC/220VAC
Model Number: SP-320
Feature: 100% full load burn-in test,LED indicator for power on
Weight: 1.1KG
Name: 4 vdc power supply
Payment: L/C,T/T,Western Union,MoneyGram,Paypal,Cash.
Advantage: High efficiency, long life and high reliability
Package: Inner box and outer carton
Output Voltage: 5V,12V,24V,48V
EMC standards: Design refer to GB9254,EN55022,class B
Output Frequency: 50/60HZ
Delivery Detail: Shipped in 5 days after payment
Packaging Detail: Inner box and outer carton
Yueqing Winston Electric Co., Ltd.
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Technique parameter

 Protections: Short circuit / Overload / Over voltage  

Cooling by free air convection  

LED indicator for power on  

100% full load burn-in test 

High efficiency, long life and high reliability 

2 years warranty



OutputDC voltage5V12V24V48V
Voltage tolerance±2%±1%±1%±1%
Rated current55A25A13A6.7A
Current range0-55A0-25A0-13A0-6.7A
Rated power320W320W320W320W
DCvoltage ADJ.range-9%~+10%-9%~+10%±10%±10%
InputVoltage range90~264VAC,120~373VDC
AC current1.6A/115VAC,0.8A/230VAC
Inrush currentCold start current 20A/115VAC,40A/230VAC
Leakage current< 3.5mA/240VAC
ProtectionoverloadRated output power115%~150% start over load protection
Protection type:cutoff output,auto recovery after fault condition is removed
 Protection type:hiccup mode,auto-recovery after fault condition is removed
EnvironmentWorking temp,humidity-10°C~+60°C,20%~90%RH
Storagetemp,humidity-20°C~+85°C,10%~95%RH non-condensing
Withstand vibration10~500HZ,2G 10min/1cycle,period for 60 minutes,each axes
SafetyWithstand voltageI/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
Isolated resistanceI/P-O/P,I/P-FG,O/P-FG:100M ohms/500VDC
FitstandardSafety standardFit UL1012
EMC standardEN55022,CLASSA
OthersDimension210*115*50mm (L*W*H)
Note1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C 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.



 What is the Overall dimension of our power supply?                                                      


SP 320 

Process of production                                                                                                    




How to choose our power supply?                                                                                        


1. Single output

To determine the power after the output voltage is decided. The power range of our switching power supply is 10W to 1500W, output voltage from 3V to 220V DC. If the requirement is 24V, 1A, we can choose S-25-24, and within cost range, retain 10% -20% of the power allowance.


2. Multi-output

The multi-output power supply has the main and secondary circuit output. The character of main circuit output is better than the secondary.To ensure the load regulation and so on, every circuit has to be with a certain load. If just using the second circuit, the main circuit has to be matched with corresponding dummy load (more than 0.5A or larger)


3. Before placing an order, please kindly confirm us the details below: Input voltage, Output voltage, Output current, Power


Questions for our power supply?                                                                                            

1. When using your power supply, find the shell with voltage, is that normal?

Answer: That is normal. According to the EMI request, the input port and the shell are connected by a capacitor, which causes the voltage on the shell. It’s specified in the IEC standard that the leakage current is less than 3.5mA. It’s safe and won't cause any damage to people.


2. When needing 24V voltage, but only 12V power supply at hand, can this work to connect 2 pieces 12W power supply in series?

Answer: It’s workable. We can cut down the cost through that way sometimes.


3. Can use S-50W power supply as the charging power supply?

 Answer: Yes. But in order to avoid battery feedback, please be advised use a series diode on the output, and pay attention to the diode heat dissipation.


What is the MOQ of our power supply?                                                                                 


MOQ: We support sample order.(1~5PCS)

More than 500PCS,can pring Logo on the products. 


Why choose us



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