TOMZN S-400W Switching Power Supply AC 110V/220V to DC 12V 33A 24V 17A Industrial SMPS Enclosed Transformer for 3D Printer LED

General
The TOMZN S‑400 Series delivers 400W of reliable, high‑efficiency AC‑DC power for industrial use. Up to 89% efficiency reduces energy loss and heat. A built‑in DC fan ensures stable operation at full load. Selectable 110V/220V AC input, available in 12V or 24V DC output. Built‑in short circuit, overload, and over voltage protection. Ideal for PLC, control panels, LED lighting, and CCTV.

Product parameters
Model: S‑400 Series
Rated Power: 400W
Input Voltage: 110V / 220V AC (switch selectable)
Frequency: 50/60Hz
Output Voltage: 12V or 24V DC
Efficiency: Up to 89%
Cooling: Built‑in DC fan (forced air)
Protections: Short circuit, overload, over voltage
Operating Temperature: -25°C to +70°C
No‑Load Power: <0.75W
Mounting: Enclosed / chassis mount