- Overview
- Product Description
- Specification
- Packing & Delivery
- Company Profile
- FAQ
Basic Info.
Model NO.
S-250-5
Input Voltage
90-132VAC/180-264VAC
Connection Mode
Series Switching Power Supply
Starting Mode
Separate-excited Switching Power Supply
Voltage Regulating Mode
Width Modulation Type
Power Supplying System
Terminal Power Distribution Equipment
Energy Transmission
One-way Transmission
Modulation System
PWM
Certification
CE, RoHS, ISO, CCC, Bis
Brand
Nvvv
Voltage Adj. Rang
10%
Output Current
40A
Color
Silver
MOQ
1 PCS
Type
AC DC
Payment
Paypal\Tt\Western Union\Trade Assurance
Output Voltage
5V
Net Weight
866g
Application
LED Lighting
Output Frequency
50/60Hz
Transport Package
Safety Packaging
Specification
215*114*50mm
Trademark
NVVV
Origin
Zhejiang, China
Production Capacity
10000 Piece/Pieces Per Month
Product Description
| S-250 250W switching power supply | ||||||
| project | Technical index | |||||
| output | DC voltage | 5V | 12V | 24V | 36V | 48V |
| Rated current | 40A | 20.8A | 10.4A | 7A | 5.2A | |
| Rated power | 200W | 249.6W | 249.6W | 252W | 249.6W | |
| Ripple and noise | <100mV | <150mV | <150mV | <240mV | <240mV | |
| Voltage accuracy | ±2% | ±1% | ||||
| Output voltage regulation range | ±10% | |||||
| Load adjustment rate | <±1.5% | <±0.5% | <±0.5% | <±0.5% | <±0.5% | |
| Linear adjustment rate | <±0.5% | |||||
| input | Voltage range | 90-132VAC/180-264VAC 47Hz~63Hz 254VDC~370VDC | ||||
| Efficiency (typical) | >78% | >82% | >84% | >84% | >84% | |
| Working current | <4A 115VAC <2.5A 230VAC | |||||
| Impulse current | 115VAC 25A, 220VAC 50A | |||||
| Start, rise, hold time | 200ms,50ms,20ms :220VAC | |||||
| protect | overload protection | 105% - 150% type: constant current output + VO reduced to undervoltage point cut off output reset: power on again | ||||
| Overvoltage protection | 115%-135%VOUT | |||||
| Undervoltage protection | 35%-45%VOUT | |||||
| Short circuit protection | +VODrop to undervoltage point to close output | |||||
| Over temperature protection | Rth3: ≥ 60 ºC fan start, ≥ 50 ºC fan close, ≥ 80 ºC close output (5V) rth3: ≥ 65 ºC fan start, ≥ 55 ºC fan close, ≥ 85 ºC close output (12v-48v) | |||||
| Environmental Science | Working temperature and humidity | -10ºC~+50ºC;20%~90RH | ||||
| Storage temperature and humidity | -20ºC~+85ºC;10%~95RH | |||||
| Safety regulations | Withstand voltage | Input output: 1.5kVac input shell: 1.5kVac output shell: 0.5kvac for 1 minute | ||||
| Leakage current | 5mA at 1.5kVac input-output | |||||
| Leakage current | Input output at 220VAC < 1mA | |||||
| Isolation resistance | Input output, input shell, output shell: 500VDC / 100M Ω | |||||
| Other | size | 215*114*50mm | ||||
| Net weight / gross weight | 866/925g | |||||
Safety Packaging
Q1:How many Voltage you can supply?
A: 12v,24v,48v,50v,60v,110v(Depend on items).
Q2Can I have a sample order?
A: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable. At the same time, we have overseas warehouses so that you can get the products faster. Q3Do you have any MOQ limited for the order?
A: Low MOQ, 1pc for sample checking is available. Q4How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx, or EMS. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional. Q5Do you offer a guarantee for the products?
A: Yes, we offer a warranty on our products. Q6: How to deal with the faulty?
A: Firstly, our products are produced in a strict quality control system and the defective rate will be less. Secondly, during the guarantee period, we will send new products with new orders for small quantities. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to the real situation.