By info@ico28.com 
Vox Power Ltd has announce the EIRE300 series of 300W open-frame ac-dc power supplies for medical and IT equipment use, that measure 4 x 2 x 1inch.
300W is with forced air and only 200W (115Vac) is available continuously if only convection cooling is available – with ambient temperature caveats. Up to 375W can be delivered for 1s.
Different models offer a choice of output voltages including: 12, 15, 18, 24, 28, 36, 48 or 54V. Output adjustment means that almost the whole 12 to 60V span an be covered.
Features include: 2x MOPP isolation, a dedicated auxiliary fan supply, internal dual line fusing, remote sensing, and an AC-OK signal.
It has “a ‘BF’ rating, making it suitable for equipment that requires direct contact with patients”, said Vox. “This rating is crucial for applications like surgical instruments and critical care medical devices, ensuring that they can be safely used close to the patient.”
Approval is to 60601-1 and 62368-1 for medical and ITE applications, and there is compliance with 60601-1-2 (EMC), 60335-1 (household appliances), 61010-1 (measurement, control and laboratory equipment) and 61558-1 (power transformers safety).
They supplies are designed for both Class I and Class II equipment, and meet EMC Class B standards for conducted and radiated emissions.
Operation is across 85 to 264Vac and -40 to +70°C, and up to 5,000m. Stand-by consumption is typically 250mW.
Protections such as over-voltage, over-current and over-temperature are standard.
Electrolytic capacitors are long-life – claimed MTBF is >500,000h – and conformal coating is standard.
Original article source:
FAQ
1. What Does “Medical-Rated” Mean for a PSU?
A medical-rated PSU is designed to meet stringent safety and performance standards required for medical equipment. These power supplies must comply with international safety standards like IEC 60601-1, which ensures that the PSU is safe for use in medical environments where patient contact is possible. This includes features like reinforced insulation, lower leakage current, and higher reliability to prevent harm in critical applications.
2. What Applications Are These PSUs Typically Used For?
Medical-rated 300W AC-DC PSUs are used in a wide range of medical and healthcare equipment, including patient monitoring devices, ventilators, imaging systems, and surgical tools. Their compact size (1x2x4 inches) makes them ideal for equipment with limited space, without compromising on power output or reliability.
3. What Is the Significance of 300W Output?
The 300W power output provides ample energy for powering medium-sized medical devices and instruments. It offers a balance between size, efficiency, and power output, making it suitable for devices that require continuous operation and high reliability, such as dialysis machines or portable diagnostic equipment.
4. Why Is the Size (1x2x4 inches) Important?
The compact size of this PSU (1x2x4 inches) is crucial for space-constrained applications. Medical devices are often designed to be portable or to fit into tight spaces in hospital environments. A small, powerful PSU allows for more flexible designs and integration into a wider range of medical equipment.
5. What Safety Features Should I Expect?
A medical-rated 300W AC-DC PSU typically includes several key safety features:
Reinforced insulation to ensure electrical separation between the patient and the equipment.
Low leakage current, which is critical in preventing electrical shock.
Overload, overvoltage, and short-circuit protection, ensuring that any malfunction will not cause damage to the equipment or endanger the patient. These PSUs often feature isolation levels that exceed typical industrial or consumer-grade power supplies.
6. Is It Efficient for Long-Term Operation?
Yes, most medical-rated 300W AC-DC PSUs are designed to be highly efficient, often achieving efficiencies of 90% or higher. This is important in medical settings where equipment may need to run continuously for long periods. High efficiency translates to less heat generation, reducing the need for complex cooling solutions and enhancing the reliability of the power supply over time.
7. How Does This PSU Handle Input Voltage?
Medical-rated PSUs are typically designed to handle a wide input voltage range (e.g., 85-264V AC), which ensures compatibility with different global power standards. This makes it versatile for use in various regions without needing additional voltage converters, which is particularly important in international medical facilities.