SST DS-250-12 Industrial Enclosed Switching Power Supply LUCKY SKY
The SST DS-250-12 is a high-power, high-efficiency single-output industrial enclosed AC-to-DC switching power supply designed to deliver a stable, regulated 12V DC output at up to 21 Amps (250W capacity). Built inside a perforated aluminum alloy chassis for optimal passive cooling and structural durability, this unit features built-in protections against short circuits, overloads, and over-voltage conditions. Equipped with a manual AC input voltage selector ($110\text{V} / 220\text{V AC}$) and a front fine-tuning potentiometer ($\pm 10\%$), it serves as a high-current DC power supply for industrial control systems, high-density LED arrays, CCTV/security setups, DC motors, and automation equipment.
Specification | Technical Value |
|---|---|
Brand & Series | SST DS-250 Series |
Model / Part Number | DS-250-12 (MM) |
Power Supply Type | Single-Output Enclosed Switching Power Supply (SMPS) |
Output Voltage (V_{out}) | 12V DC (Adjustable \pm 10\% via output trimmer) |
Rated Output Current (I_{out}) | 21A (0 – 21A continuous load range) |
Rated Power Output | 250W Maximum |
Input Voltage Range | 110\text{V AC} \pm 15\% / 220\text{V AC} \pm 15\% (Selected by switch) |
Input Frequency | 47 Hz – 63 Hz |
Efficiency | \ge 82\% typical |
Ripple & Noise | \le 150\text{ mVp-p} |
Protection Features | Short Circuit, Overload (105%–150% hiccup mode), Over-Voltage |
Cooling Method | Natural Air Convection / Aluminum Chassis Heat Sink |
Insulation Resistance | \ge 100\text{ M}\Omega @ 500V DC |
Terminal Connections | Heavy-Duty Screw Terminal Block with Protective Cover |
Enclosure Material | Perforated Metal / Aluminum Alloy Housing |
Operating Temperature | -10°C to +60°C |
Compliance & Standards | CE, RoHS |

Ssaoco Dammam
- Started from: Jul 10, 2025



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