MEAN WELL RPS-400-12-SF power adapter 400 W 12 V input 80-264 V

The MEAN WELL RPS-400-12-SF is an open-frame AC-DC medical power supply delivering 12 V DC at 33.3 A (400 W). It accepts a wide input voltage range of 80–264 V AC, includes EN60601 medical safety with 2xMOPP isolation, and is fitted with a side fan and cover for cooling. The unit is RoHS compliant and has compact dimensions suitable for integration into medical and industrial equipment.

Advantages

This power adapter provides a stable 12 V/33.3 A output with 400 W continuous power in an open-frame design, meeting EN60601 medical safety requirements with 2xMOPP isolation. The wide 80–264 V input range allows global operation without additional conversion. An integrated side fan with cover improves thermal performance while the compact footprint (86 × 130 × 66.5 mm) simplifies installation in constrained spaces.

Suitable for

• Medical devices requiring EN60601-compliant power sources
• Diagnostics and laboratory equipment
• Industrial control systems and embedded applications
• Equipment needing a compact 12 V / 400 W supply

Key specifications

• Output: 12 V DC, 33.3 A (400 W)
• Input voltage: 80–264 V AC
• Safety: EN60601 with 2xMOPP isolation
• Cooling: side fan with cover
• Configuration: open-frame
• Compliance: RoHS
• Dimensions (W×D×H): 86 × 130 × 66.5 mm
• Brand / Model: MEAN WELL RPS-400-12-SF (MPN: RPS-400-12-SF, EAN: 4021087034067)

How to use

Install the open-frame power supply in a ventilated enclosure that allows airflow to and from the side fan. Connect the AC input to a properly fused mains source within 80–264 V AC, observing correct polarity and protective earth connections. Route the 12 V DC output to the load using appropriately rated cables and connectors. Ensure installation follows applicable medical and local electrical standards and verify output voltage under load before connecting sensitive equipment.

Recommendations

Maintain clear airflow around the side fan, avoid obstructing the cover, and operate the unit within specified ambient temperature and ventilation limits. For medical applications, perform installation and safety checks according to EN60601 and local regulations; ensure regular maintenance of the cooling fan to preserve reliable operation.