400W Power Supply
We Leyu was founded in 2005,mainly produce AC to DC. DC to DC switching 400w power supply. The products are approved by CE ROHS CCC IP67 Certificattion. Our enterprise was approved by ISO9001. Based on the trading belief "Focus on customers","realizing the satisfaction of...
We Leyu was founded in 2005,mainly produce AC to DC.
DC to DC switching 400w power supply.
The products are approved by CE ROHS CCC IP67 Certificattion.
Our enterprise was approved by ISO9001.
Based on the trading belief "Focus on customers","realizing the satisfaction of customer" as our working goal.
Our company now has over 60 staffs,5 senior engineers,10 export salers ,also our company has established a strong partner-ship with over 50 factories.
400W Single Output Switching Power Supply S-400 series
Product Description:Our Leyu brand 400w power supply use for LED driver/Industrial machine/Camera etc.Mainly AC to DC .Constant voltage of our switching power supply and has Short circuit/ Over load/ Over voltage protection.
High efficiency, high reliability, low cost
Universal AC input / full range
100% full load burn-in test
Protections: Short circuit/ Over load/ Over voltage
PWM control and regulated
Forced air cooling by built in DC fan
Built-in cooling Fan ON-OFF control
Fixed switching frequency at 25 KHz
2 years warranty
Ripple & Noise
Voltage Adj. Range
Setup, Rise, Hold Up Time
200ms,50ms,20ms at full load
90~132VAC/180~264VAC selected by switch 47~63Hz; 254~370VDC
73% 76% 74% 79% 78% 81% 82% 83%
Cold start 50A/115V 50A/230V
Protection type: Fold back current limiting, recovers automatically after fault condition is removed.
Protection type: hiccup mode, recovers automatically after fault condition is removed.
RT3≥55℃ Fan On, ≤45℃ Fan Off, ≥80℃ Output Shutdown (5~7.5V)
RT3≥65℃ Fan On, ≤55℃ Fan Off, ≥80℃ Output Shutdown (12~15V)
RT3≥70℃ Fan On, ≤60℃ Fan Off, ≥85℃ Output Shutdown (24~48V)
Working Temp., Humidity
Storage Temp., Humidity
10~500Hz, 2G 10min./1cycle, period for 60min, each along X, Y, Z axes
I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC
Design refer to UL1950
Design refer to EN55022, EN55024, EN61000
*.Low price and high quality
*.105 ℃ output capacitor
*.Ac input power suitable for the world
*.High efficiency and low operation temperature
*Soft-start current can reduce the AC input impact efficiency
*.With short-circuit and overload protection
*100% full-load burn-in test
*.Installed with EMI filter.Minimum wave
Q:Why choose us ?
A:LEYU company specialized in making switching 400w power supply for 10 years, professional manufacturer accept customized and OEM .
Q:Which kind of payment terms you accept?
A:We accept T/T,L/C,West union,paypal and Credit card.
Q:Can I get a sample before the order because I really don't how is your 400w power supply’s quality?
A:Of course!We also think sample order is the best way to build the trust.
Q:How long days you need of send goods to us ?
A:Most of our standard products are in stock, we can delivery within 2 work days .special
model need 7-15 work days..For large quantity orders 3-5 weeks lead-time is needed.
Q:what certificate your products own ?
A:CE ROHS CCC Certification
a) All products will have been strictly quality checked in test house before packing
b) All products will be well packed before shipping
c) All products have 1-2 years warranty, and we sure the products will be free from maintenance within warranty period