Power adapter/inverter MEAN WELL EPS-120-24, 120 W, 24 V output, AC input 80–264 V, compact

MEAN WELL EPS-120-24 is a compact AC-DC open-frame power supply that delivers a regulated 24 V DC output at up to 3.5 A from a wide AC input range of 80–264 V. Designed for installations with limited space, this 120 W unit features a low 1U profile and auxiliary 12 V DC output suitable for control and monitoring circuits. The device is RoHS compliant and intended for powering industrial control devices, communication equipment and embedded systems requiring a stable 24 V supply.

Advantages

The EPS-120-24 offers a wide AC input range that supports global mains voltages, a compact low-profile form factor that simplifies integration in confined enclosures, and dedicated auxiliary output for peripheral circuits. Its open-frame design allows efficient heat dissipation while maintaining a small footprint, and built-in regulation ensures reliable 24 V delivery under varying line and load conditions.

Suitable for

• Industrial control panels and PLC modules
• Communication equipment and network devices
• Embedded systems and single-board computers
• Automation devices and sensors requiring 24 V DC
• Applications with limited installation depth or 1U rack spaces

Key specifications

• Output voltage: 24 V DC nominal, regulated, up to 3.5 A
• Auxiliary output: 12 V DC at up to 5 A
• Maximum output power: 120 W total
• Input voltage range: 80–264 V AC, single-phase
• Form factor: open-frame, compact dimensions 50.8 × 101.6 × 29 mm
• Mounting profile: low 1U height suitable for shallow enclosures
• Safety and environmental: RoHS compliant

How to use

Install the EPS-120-24 on a suitable chassis or mounting frame following safety and grounding requirements. Connect the AC mains input to the designated input terminals within the specified 80–264 V range. Use the primary 24 V DC output to feed the main load and the 12 V auxiliary output for peripheral circuits as required, observing polarity and current limits. Ensure adequate ventilation around the open-frame unit and avoid covering the top or sides to maintain proper cooling. Verify output voltages with a multimeter before connecting sensitive equipment.

Recommendations

For reliable long-term operation, operate the unit within rated load and ambient temperature ranges, provide proper chassis grounding, and implement input surge protection if mains conditions are unstable. When used in enclosed or vibration-prone environments, secure the power supply mechanically and allow clearance for airflow.