Open-frame industrial and medical power supplies are critical components in a wide variety of electronic systems, enabling efficient and reliable operation across numerous applications. Their compact, ventilated design allows for seamless integration, making them ideal for use in environments where space efficiency and thermal management are key. From manufacturing equipment and test systems to life-saving medical devices, the versatility of open-frame power supplies supports the growing demands of today’s technological landscape.
Below are several key considerations when selecting a suitable open-frame power supply for your application:
- Safety Standards
Confirm the required safety certification with the customer. For industrial applications, this may include IEC60950 or IEC62368-1, while medical applications typically require IEC60601 compliance. Meeting the relevant safety standards is essential for regulatory approval and operational safety. - Operating Conditions
Carefully assess the application’s input voltage range, power demands, ambient operating temperature, cooling or ventilation needs, and any other environmental factors. These parameters are critical to ensuring reliable long-term performance. - Power Ratings and Derating
Take into account the power supply’s derating characteristics. Typically, power output begins to reduce at around 50°C, and may drop to 50% of rated capacity at 70°C. Refer to the derating curve in the datasheet to select a model that maintains sufficient power under your specific thermal conditions. - Fan Power Output
Many open-frame models include a built-in +12V output for powering a system fan, eliminating the need for an external fan power source and simplifying system design. - Output Connections
Choose the appropriate output interface based on your design requirements—whether screw terminals or Molex connectors are more suitable for your assembly process and wiring. - Voltage Adjustment
Most models offer adjustable output voltage—typically within ±3%—to accommodate variations in load or specific system requirements. Consult the product specifications for details on the adjustment range.
When selecting an open-frame power supply, always review the technical documentation, environmental ratings, and applicable compliance standards to ensure a reliable and safe fit for your application.
Bel Power Solutions offers a wide range of open-frame power supplies from 40W to 1200W to suit diverse industrial and medical needs.
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