Power adapter MEAN WELL EPP-120S-27, 120 W, 27 V output, 80–264 V input

MEAN WELL EPP-120S-27 is a compact open-frame AC‑DC power supply delivering 27 V DC at up to 5.55 A (120 W) with a wide input range of 80–264 V AC. The unit includes PFC (power factor correction), complies with RoHS, and is sized for integration into control cabinets or equipment where a stable 27 V supply is required. Its small footprint (50.8 × 76.2 × 28 mm) and single-output design suit installations with limited space.

Advantages

The EPP-120S-27 provides a stable 27 V output at 120 W in a compact 3 × 2 inch open-frame package and features power factor correction for improved mains efficiency. RoHS compliance ensures reduced hazardous substances, and the wide 80–264 V input range allows global mains compatibility. Its compact dimensions simplify mounting inside devices or control cabinets.

Suitable for

• Industrial control systems
• Automation equipment and PLCs
• Embedded devices and instrumentation
• Commercial electronics requiring a 27 V supply

Key specifications

• Manufacturer: MEAN WELL
• Model (MPN): EPP-120S-27
• Output: 27 V DC, 5.55 A (120 W)
• Input voltage: 80–264 V AC
• Type: Open-frame AC‑DC power supply with PFC
• Dimensions: 50.8 × 76.2 × 28 mm (approx. 3 × 2 inch)
• Compliance: RoHS
• Pack: sold in packs of 100 (per product data)

How to use

Install the open-frame power supply on a suitably ventilated mounting surface inside the equipment or control cabinet, ensuring adequate clearance for airflow. Connect the AC mains within the specified 80–264 V range to the input terminals and connect the 27 V DC output to the load, observing correct polarity. Verify secure electrical connections and, if required, add appropriate fuses or circuit protection on the input and output circuits. Follow local electrical codes and the manufacturer’s installation guidelines during wiring and commissioning.

Recommendations

Use the EPP-120S-27 in applications where a compact, single-output 27 V supply is needed. Ensure adequate ventilation, avoid exposure to excessive dust or moisture, and implement external protection (fuses, overcurrent protection) as appropriate for the application.