1U Low profile with active PFC function: 15W~3000W
Built-in constant current limiting circuit
Economical
Miniature size, non-PFC
5G vibration, 70℃ operation
With overload/overvoltage/short circuit/overtemperature protection, built-in controllable fan with low noise, high efficiency, efficient heat dissipation, high withstand voltage.
| 400W Switching Power Supply | ||||||
| Project | Technical index | |||||
| Output | DC voltage | 5V | 12V | 24V | 36V | 48V |
| Rated current | 55A | 33.3A | 16.6A | 11.1A | 8.3A | |
| Rated power | 275W | 399.6W | 398.4W | 399.6W | 398.4W | |
| Ripple and noise ① | ＜100mV | ＜150mV | ＜150mV | ＜240mV | ＜240mV | |
| Voltage accuracy | ±2% | ±1% | ||||
| Output voltage regulation range | ±10% | |||||
| Load adjustment rate | ＜±1.5% | ＜±1.2% | ＜±1% | ＜±0.5% | ＜±0.5% | |
| Linear adjustment rate | ＜±1% | |||||
| input | Voltage range | 90-132VAC/180-264VAC 47Hz～63Hz；254VDC～370VDC | ||||
| Efficiency (typical) ② | ＞74% | ＞82% | ＞84% | ＞86% | ＞86% | |
| Working current | ＜6 A 115VAC ＜3.7A 230VAC | |||||
| Impulse current | 110VAC 25A， 220VAC： 50A | |||||
| Start, rise, hold time | 200ms、50ms、20ms ：230VAC | |||||
| Protect | overload protection | 105% - 135% type: constant current output + VO reduced to undervoltage point cut off output reset: power on again | ||||
| Overvoltage protection | Close output when ≥ 115% - 145% | |||||
| Undervoltage protection | Close output when ≤ 10% - 45% | |||||
| Short circuit protection | Close output | |||||
| Over temperature protection | Rth3: the fan operates normally, and the output is closed when the temperature is ≥ 85 ℃ | |||||
| Environmental Science | Working temperature and humidity | -10℃～+50℃；20%～90RH | ||||
| Storage temperature and humidity | -20℃～+85℃；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 | 874.1/936.3g | |||||
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> NVVV's 24V Switch Power Supplies
In today's electrified world, the need for efficient and reliable power conversion is more critical than ever. From powering the smallest of household gadgets to running large industrial machinery, the versatility and safety of electrical power are paramount. This is where voltage conversion plays a crucial role, bridging the gap between the power supplied by utilities and the specific needs of various devices and systems.> NVVV at the Russian Power Exhibition in June 2023
In June 2023, our NVVV team proudly participated in the Russian Power Exhibition. During the event, we showcased our reliable, high-quality products, attracting the attention of industry experts and customers alike.> How Switching Mode Power Supplies Are Transforming Modern Industrial Design
In this article, we’ll explore five key reasons why SMPS is now the gold standard in industrial power systems—and how it’s helping shape the future of smarter, safer, and more scalable design.> Why Switching Mode Power Supplies Are the Backbone of Modern Industrial Systems
In today’s fast-paced industrial world, electrical systems are expected to deliver more than just raw power. They must operate efficiently, adapt to varying loads, withstand harsh environments, and run reliably for years. Behind the scenes of automation lines, fire safety systems, building controls, and precision electronics lies a quiet yet crucial component: the switching mode power supply (SMPS). Although often overlooked, the SMPS plays a central role in ensuring equipment uptime, electrical safety, and energy efficiency. In this article, we’ll explore what makes SMPS such a vital component in industrial systems, how it compares to traditional alternatives, and what to consider when integrating it into your project.+86-18968803336
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