Power Adapter MEAN WELL EPP-400-24 400W 24V 80-264V

The MEAN WELL EPP-400-24 is an AC-DC single-output open-frame power supply with active power factor correction (PFC). It accepts a wide input voltage range of 80–264 VAC and delivers a regulated 24 V DC output at up to 16.7 A (400 W). The unit has a compact open-frame form factor (76.2 mm × 127 mm × 35 mm) and is RoHS compliant, making it suitable where a reliable regulated 24V power source is required.

Advantages

This power adapter provides a high continuous output power of 400 W in a compact open-frame design, includes active PFC for improved mains compatibility and lower harmonic distortion, and offers a wide input range (80–264 VAC) for global use. Its regulated 24 V output ensures stable voltage for connected equipment, and RoHS compliance confirms adherence to environmental standards.

Suitable for

• Industrial control systems and automation equipment
• Embedded systems and single-board computers requiring 24 V supply
• LED lighting drivers and signage
• Communication and networking devices

Key specifications

• Brand: mean well
• Model: EPP-400-24
• Output: 24 V DC, 16.7 A (400 W)
• Input voltage: 80–264 VAC
• Form factor: Open-frame
• Dimensions: 76.2 mm (W) × 127 mm (D) × 35 mm (H)
• Certification: RoHS
• MPN: EPP-400-24
• EAN: 4021087035170

How to use

Install the open-frame power supply on a suitable chassis or mounting surface ensuring adequate ventilation and clearance according to system design. Connect the AC input to a proper mains source within the 80–264 VAC range, observing correct wiring and protective fusing. Connect the 24 V DC output to the load, observing polarity and rated current limits. Provide appropriate protection (fuses, circuit breakers) and conductors sized for the 16.7 A maximum output. Follow local electrical codes during installation.

Recommendations

Place the unit where airflow is not obstructed and maintain ambient temperatures within the manufacturer's specified range. Use proper thermal management and secure mounting; avoid exposure to moisture and corrosive environments. For critical systems, consider additional filtering, surge protection, and periodic inspection to ensure long-term reliability.