In today’s digitally connected world, reliable power is the invisible foundation that keeps essential systems running smoothly. Hospitals rely on imaging devices and monitoring systems to safeguard patient health, data centers power the cloud services we depend on daily, and industrial facilities operate complex machinery that demands precise, uninterrupted energy. Behind all these systems, a stable and efficient power supply quietly enables seamless operation — and that is where the UES250 series open-frame power supply steps in.

The UES250 is designed as a high-performance, versatile 250W switching power solution, suitable for medical, industrial, and IT applications. Its open-frame design allows for flexible integration into diverse systems, while offering two operation modes: a 150W natural cooling model for low-power, low-noise applications, and a 250W fan-assisted model for high-power devices requiring consistent thermal management. This dual-mode approach ensures that every application receives precisely the level of performance and cooling it needs, without compromise.

Safety at the Core: Meeting the Highest Standards

In critical environments, safety is non-negotiable. The UES250 series addresses this with dual compliance to international standards: IEC60601-1 for medical applications and IEC62368-1 for IT equipment. This combination allows one product to serve a broad spectrum of devices safely and reliably.

Advanced isolation design provides 2MOPP (Means of Patient Protection) and leakage current under 100μA, surpassing conventional power supply safety thresholds. Whether powering a medical monitor or a server cluster, the UES250 ensures protection for both the equipment and the end user.

Beyond compliance, built-in safeguards guard against unexpected events. The UES250 includes overcurrent, overvoltage, and short-circuit protection, providing peace of mind that devices remain safe and functional even in complex operational scenarios. For hospitals, factories, or data centers, this translates into fewer disruptions and lower maintenance costs — a real, tangible benefit for both engineers and operators.

Energy Efficiency That Supports Sustainability

With growing emphasis on energy efficiency and sustainability, power consumption is a key consideration for any modern system. The UES250 series delivers high conversion efficiency while maintaining ultra-low standby power consumption of less than 0.5W.

This feature is particularly important for systems that operate continuously or remain on standby for extended periods, such as servers, monitoring instruments, or industrial controllers. By minimizing wasted energy, the UES250 not only helps reduce operational costs but also contributes to broader sustainability goals, supporting companies in their efforts to reduce carbon emissions.

Efficient operation also extends the life of the system. By generating less heat, the UES250 reduces stress on both its own components and the devices it powers. Coupled with its exceptional reliability — an MTBF exceeding 1,000,000 hours — the UES250 is engineered to provide long-term, worry-free operation, even under demanding conditions.

Flexible Cooling Options for Every Application

Every device and environment has unique thermal and power requirements. Recognizing this, the UES250 series offers two distinct models:

• Natural Cooling (150W): Designed for low-power, low-noise applications such as small medical monitors, desktop IT equipment, and compact industrial controllers. This fan-free design minimizes mechanical wear and vibration, offering a quiet and reliable solution for sensitive or noise-conscious environments.
• Fan-Assisted Cooling (250W): Built for high-power applications, this model delivers a consistent 250W output at 25°C with 25CFM airflow. It is ideal for servers, large imaging systems, industrial PLCs, and communication hubs. The fan-assisted design ensures optimal thermal performance, while the enclosed fan provides dust resistance and longer operational life, critical in industrial or clinical environments.

By providing both models in a single series, the UES250 allows engineers to select the most suitable power solution, balancing noise, cooling efficiency, and output capacity according to the specific application.

Engineered for Reliability in Any Environment

Reliability is more than surviving voltage spikes; it is the ability to deliver stable, continuous power under all conditions. The UES250 operates seamlessly across a wide temperature range of –30°C to +70°C, making it suitable for challenging environments such as outdoor communication cabinets, industrial plants, or clinical facilities without strict climate control.

The open-frame design not only simplifies integration but also enhances heat dissipation, reducing thermal stress on components and improving the lifespan of the system. Combined with strict safety certifications, EMC compliance, and multi-layer protection, the UES250 provides a stable foundation for systems that must operate 24/7 without interruption.

Comprehensive Protection and EMC Compliance

In modern IT, medical, and industrial environments, devices are constantly exposed to electromagnetic interference (EMI) and other potential electrical hazards. The UES250 series addresses this with comprehensive protection and EMC compliance, ensuring that both the power supply and connected devices remain safe and stable.

It meets Class A and Class B standards for conducted and radiated emissions, depending on the system configuration, and passes IEC61000-series immunity tests, including electrostatic discharge up to ±15kV (air) and ±8kV (contact), radiated immunity of 10V/m across 80MHz–2.7GHz, and fast transient bursts at ±2kV (power ports) and ±1kV (signal ports).

These protections allow the UES250 to perform reliably in complex electromagnetic environments, such as hospitals filled with sensitive medical equipment or data centers crowded with servers, switches, and networking devices. Engineers can confidently integrate the UES250, knowing that it will not interfere with other equipment, nor be affected by external disturbances.

Applications Across Industries

The UES250 series is designed to meet the diverse power needs of multiple sectors:

• Medical Equipment: From patient monitors and ultrasound machines to blood analyzers, the UES250 delivers stable, safe power with low leakage current, supporting life-critical operations in clinical environments.
• IT and Communication: Servers, switches, and storage systems demand high reliability and low standby power for continuous operation. The UES250 provides precisely that, enabling 24/7 uptime for data centers and network infrastructure.
• Industrial Control: Small PLCs, sensors, and other industrial controllers require robust power in harsh conditions. With wide temperature tolerance and strong EMC performance, the UES250 ensures consistent operation in factories, production lines, and other demanding environments.

Whether powering low-noise medical devices or high-power IT clusters, the UES250 series combines safety, efficiency, and adaptability — making it the backbone of reliable system design.

The UES250: Built for Today and Tomorrow

In every aspect, the UES250 series embodies a design philosophy of “Safety as the foundation, efficiency as the priority, adaptability as the key.” By offering flexible power options, rigorous protection, and exceptional reliability, it allows engineers and system designers to focus on innovation, knowing their devices are powered by a robust, intelligent solution.

For developers seeking customized voltage outputs or specialized configurations, the UES250 series can be tailored to meet unique requirements, providing not just a power supply but a long-term, dependable partner for mission-critical systems.

Whether it’s in a quiet medical room, a busy server room, or a factory floor, the UES250 series open-frame power supply ensures systems stay operational, efficient, and safe — the kind of reliability that is invisible to the user but essential to the success of every operation.