S-400W Switching Power Supply | 12V/24V/48V | Industrial Grade | 94% Efficiency

Professional 400W Power Solution

The S-400W 400W switching power supply represents the pinnacle of industrial power conversion technology, engineered with components that meet stringent industry quality benchmarks. This high-performance unit delivers exceptional reliability for mission-critical applications, making it a preferred alternative for engineers seeking proven performance.

Advanced Technical Specifications

Featuring an impressive 400W continuous power rating, this industrial SMPS offers:

• Triple output selection: 12V@33A, 24V@16.5A, 48V@8.3A

• Ultra-wide input range: AC 85-305V (45-65Hz)

• Exceptional efficiency: 94% typical at 230V AC

• Superior power factor: Active PFC ≥0.98

• Precise regulation: ±0.3% line, ±1% load regulation

Comprehensive Protection Systems

Moreover, this power supply incorporates multi-layered protection:

• Advanced overload protection with hiccup mode

• Multi-stage over-voltage protection circuitry

• Intelligent short-circuit protection

• Dual-zone thermal management system

• 6kV surge protection for industrial environments

Industrial Automation Applications

Specifically designed for demanding industrial environments:

• Heavy-duty robotics power supply

• CNC machining center power units

• Industrial motor drive systems

• Factory automation control power

Data Center & Telecom Uses

Additionally, the unit excels in:

• Server rack power distribution

• 5G base station power systems

• Network equipment power supply

• Data center backup power

High-Power Lighting Solutions

Furthermore, it perfectly supports:

• Stadium lighting power systems

• Large LED video wall power

• Architectural lighting installations

• Industrial high-bay lighting

Renewable Energy Applications

Notably, the power supply enables:

• Solar inverter control systems

• Wind power monitoring equipment

• EV charging station power

• Energy storage system control

Smart Control & Monitoring

Importantly, the unit features:

• Remote on/off control capability

• Current sharing for N+1 redundancy

• Real-time temperature monitoring

• Fan failure detection with alarm signals

Mechanical Design Features

Furthermore, the robust construction includes:

• Heavy-duty steel enclosure

• Compact dimensions: 299mm × 155mm × 75mm

• Dual cooling fans with smart speed control

• Industrial-grade terminals (25A rating)

Certifications & Compliance

Finally, the product meets:

• UL 62368-1 safety standards

• EN 55032 EMC requirements

• RoHS 3 environmental compliance

• CE, UKCA, RCM markings

S-400   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