240W Medical-Grade AC-DC Power Supply with 2MOPP, Class I & II Support

ARCH AC-DC Switching Power Supply MQF240U

ARCH AC-DC Switching Power Supply MQF240E

240W Medical-Grade AC-DC Power Supply with 2MOPP, Class I & II Support

MQF240 Series

Compact, 2MOPP-Certified Power for Medical & Industrial Use — Open Frame, U Bracket & Enclosed Options

The ARCH MQF240 240W AC-DC switching power supply is built for efficiency, delivering up to 94% performance—higher than typical medical-grade units (89–91%). With P.F.C. > 0.9, the switching power supply improves power quality and reduces energy loss. High efficiency lowers heat, simplifies thermal design, and minimizes the need for active cooling, resulting in better system stability, energy savings, and extended lifespan for medical devices.

Inquire Now

Ultra-Compact Size for Seamless System Integration

With dimensions of just 104 x 62 x 50.5 mm, the MQF240 switching power supply offers a volume up to 32% smaller than competing models. This compact form factor makes it easy to integrate into space-constrained medical equipment such as blood analyzers, ventilators, dental tools, and handheld diagnostic devices, empowering designers with more freedom in mechanical layout and system design.

Flexible Grounding Design: Class I & Class II Support

Unlike many competing power supplies that only support Class I (grounded) configurations, the MQF240 switching power supply uniquely supports both Class I and Class II (non-grounded) applications. This versatility allows system developers to use a single power supply across multiple designs, eliminating the need for separate models and reducing design complexity, safety certification time, and development costs. In contrast, most models in the market require separate SKUs for each class, giving the MQF240 switching power supply a distinct edge.

Certified Safety with 2MOPP Insulation and 4000VAC Isolation

Safety and compliance are built into the core of the MQF240 switching power supply. It is certified to UL, IEC, and EN 60601-1 standards and designed for BF-type medical applications, featuring 2xMOPP insulation and 4000VAC input-to-output isolation for patient and operator safety. The switching power supply also complies with EMC standards without requiring external components, streamlining system design and ensuring global regulatory readiness.

A Smarter Power Solution for Modern Medical Systems

From energy efficiency and compact design to flexible installation and global safety certification, the MQF240 switching power supply offers a balanced power solution for modern medical and industrial systems. Its features are tailored for the real-world needs of developers seeking powerful performance in a small footprint, making it the ideal choice for next-generation healthcare and diagnostic technologies.

Key Features

Open Frame / U Bracket / Enclosed Package.
Universal Input Range 90 - 264VAC.
Low No-Load Power Consumption < 0.5W.
High Efficiency up to 93% / 94%.
With P.F.C. Function > 0.9.
Low Leakage Current < 0.1mA / 264 VAC (Touch Current).
Wide Operating Temperature: -30°C ~ +70°C with derating
I/O Isolation: 4000VAC
EMI for Both Class I (with PE) and Class II (without PE) Configuration.
Suitable for BF Application with Appropriate System Consideration.
EMC compliance to IEC 60601-1-2 4th edition.
Safety Approval to UL / IEC / EN 60601 3.2rd Edition (2 x MOPP), UL / IEC / EN 62368.
3-Year Product Warranty.

Applications

Industrial Automation Systems
Automotive Electronic Equipment
Medical Equipment
Communication Equipment
IoT (Smart City)
Mechanical Equipment

Specification

Series	MQF240O	MQF240U	MQF240E
Dimensions (L x W x H) (Tolerance ± 0.5 mm)	103.9 x 52.0 x 27.6 mm 4.1 x 2.05 x 1.087 inches	104.0 x 62.0 x 39.2 mm 4.1 x 2.44 x 1.544 inches	104.0 x 62.0 x 50.5 mm 4.1 x 2.44 x 1.99 inches
Cooling Method	Free Air Convection / 10 CFM FAN	Free Air Convection / 10 CFM FAN	Built-in Cooling Fan ON-OFF Control
AC Input Voltage Range	90-264 VAC
AC Inrush Current	< 45 A max. (115 VAC) / < 90 A max. (230 VAC)
Leakage Current	< 0.1 mA / 264 VAC (Touch Current)
Output Voltage Accuracy	± 2%
Output Voltage Adj. Range	± 4% Output Voltage
Ripple and Noise (Vp-p.)	1% Vout (max.)
Over Power Protection	Auto Recovery, Hiccup Mode
Over Voltage Protection	Auto Recovery
Over Temperature Protection	Auto Recovery
Short Circuit Protection	Protection Level 1 (Nominal) : Continuous, Auto Recovery; Protection Level 2 (Instantaneous High Current) : Latch
Isolation Input-Output	4000 VAC or 5656 VDC
Operating Temperature	-30°C to +70°C
Temperature Coefficient	± 0.05%/°C
Safety Approval	12S / 24S / 48S: UL / IEC / EN 60601-1, UL / IEC / EN 62368-1
Safety Approval / Meet	15S: UL / IEC / EN 60601-1, UL / IEC / EN 62368-1 (meet)
EMI	Conducted: EN 55011 Class B; Radiated: EN 55011 Class I Class B / Class II Class A
EMS	EN 60601-1-2 4^th Edition