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S
SMUN
The S Series 15W to 1200W AC/DC Switching Power Supply is engineered to deliver highly stable and efficient power conversion for a diverse range of industrial, commercial, and automation applications. Designed to accommodate universal input voltages, this versatile PSU series offers multiple standardized DC output options, including 5V, 12V, 15V, 24V, 48V, and 60V. Whether your procurement requirements call for a compact 15W unit for basic security systems or a heavy-duty 1200W power supply for manufacturing equipment, the S Series provides a dependable foundation for your electrical infrastructure.
Ideal for use in factory automation, LED lighting displays, motor control, communications equipment, and CNC machinery, these power supplies are built with long-term operational stability in mind. By delivering consistent voltage and minimizing electrical noise, the S Series helps reduce maintenance costs, extends the lifespan of connected devices, and mitigates operational risks in demanding environments.
Universal AC Input Range: Selectable by switch or supporting a wide auto-ranging input (depending on the specific wattage model), ensuring smooth integration into various global power grids and reducing the need for region-specific inventory.
Built-in EMI Filter & Tiny Ripple Noise: Engineered with advanced electromagnetic interference filtering to provide clean, stable DC output. This protects sensitive electronic components, sensors, and microprocessors from power fluctuations.
Comprehensive Safety Protections: Fully equipped with automatic safeguards against short circuit, overload, and over-voltage conditions. These built-in protections effectively prevent equipment damage and facilitate quick system recovery during electrical faults.
Optimized Cooling Methods: Utilizes reliable free air convection cooling for lower wattage models (up to 250W) and integrated high-speed DC fans for higher capacities (320W to 1200W), ensuring optimal operating temperatures and thermal stability.
100% Full Load Burn-in Tested: Every single unit undergoes rigorous full-load burn-in testing prior to dispatch. This strict quality control protocol guarantees maximum reliability and consistent performance under continuous, heavy-duty operation.
2-Year Manufacturer Warranty: Backed by a solid 2-year warranty, offering procurement teams and project managers peace of mind, assured long-term value, and reliable support.
To assist engineers and purchasing professionals in identifying the exact match for their system requirements, please refer to the complete specification table below. The S Series covers a comprehensive wattage spectrum with standardized chassis dimensions to facilitate easy installation in space-constrained control cabinets and enclosures. (Note: For detailed technical data sheets and manual downloads, please refer to the dedicated documentation tab.)
| Series | Wattage(W) | Input(VAC) | Output(VDC) | Cooling method | Size(mm) | Warranty(year) |
| S-15 | 15 | 100V-260V/AC | 5,12,15,24 | Air convection | 99X97X35 | 2 |
| S-25 | 25 | 100V-260V/AC | 5,12,15,24 | 99X97X35 | ||
| S-35 | 35 | 90V-132V/AC 180V-264V/AC | 5,12,15,24 | 129X97X38 | ||
| S-50 | 50 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 159X98X38 | ||
| S-60 | 60 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 159X98X38 | ||
| S-75 | 75 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 159X98X38 | ||
| S-100 | 100 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X98X38 | ||
| S-120 | 120 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X98X38 | ||
| S-145 | 145 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X98X38 | ||
| S-150 | 150 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X98X38 | ||
| S-180 | 180 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X98X38 | ||
| S-200 | 200 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48 | 199X110X50 | ||
| S-200C | 200 | 185V-240V/AC | 5,12,15,24,48 | 199X110X50 | ||
| S-250 | 250 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 215X115X50 | ||
| S-320 | 320 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | DC Fan | 215X115X50 | |
| S-350 | 350 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 215X115X50 | ||
| S-400 | 400 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 215X115X50 | ||
| S-500 | 500 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 238X124X65 | ||
| S-600 | 600 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 238X124X65 | ||
| S-800 | 800 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 291X132X68 | ||
| S-1000 | 1000 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 291X132X68 | ||
| S-1200 | 1200 | 90V-132V/AC 180V-264V/AC | 5,12,15,24,48,60 | 291X132X68 |
The following images detail the durable structural design, precise terminal layouts, and premium build quality of the S Series. The well-engineered housing provides efficient heat dissipation, while the clearly marked terminal blocks ensure straightforward installation and secure wiring for your control systems.


