Power adapter/inverter MEAN WELL MPM-30-12ST, 30 W, 12 V output, 80–264 V input

MEAN WELL MPM-30-12ST is a compact AC-DC single-output medical encapsulated power supply providing 12 V DC at up to 2.5 A and 30 W output power. The unit accepts a wide AC input range of 80–264 V and is designed for low-power electronics, embedded systems and medical or industrial control applications that require a stable 12 V rail. The encapsulated housing and screw terminal block simplify installation in constrained spaces while meeting safety separation requirements with 2×MOPP isolation for medical-grade systems.

Advantages

The adapter delivers regulated 12 V output with up to 2.5 A current capability in a small form factor weighing approximately 120 g and with a depth of 91 mm (39.5 × 91 mm depth specified). RoHS compliance reduces hazardous substances, and the encapsulated construction protects internal components from dust and mechanical stress. The wide 80–264 V AC input range ensures compatibility with global mains voltages, and the screw terminal block enables secure wiring in installations.

Suitable for

• Embedded systems and single-board computers requiring a 12 V supply
• Medical devices and diagnostic equipment needing 2×MOPP isolation
• Industrial control modules and sensors with low power consumption
• Small appliances and peripherals that operate from 12 V DC

Key specifications

• Output voltage: 12 V DC
• Maximum output power: 30 W
• Maximum output current: 2.5 A
• AC input range: 80–264 V
• Protection: encapsulated housing
• Isolation: 2×MOPP suitable for medical applications
• Connection type: screw terminal block
• Dimensions: compact footprint with 39.5 × 91 mm depth
• Weight: approximately 120 g
• Compliance: RoHS

How to use

Mount the power supply in a location with adequate ventilation and secure it according to the device’s mechanical requirements. Connect the AC mains input within the specified 80–264 V range to the input screw terminals, observing local wiring regulations and safety practices. Connect the 12 V DC output to the load using the output screw terminals, observing polarity. Verify that the connected load does not exceed 2.5 A and that total power consumption stays within 30 W. For medical installations, ensure proper earth grounding and separation from other circuits as required by applicable standards.

Recommendations

To ensure reliable operation and long service life, avoid mounting the unit near heat sources, provide adequate clearance for airflow, and prevent exposure to moisture. Use appropriate fusing on the input side and follow installation guidelines for medical equipment when using the product in clinical environments.