Compact, Reliable, Industrial-Grade Performance
Designed with a Universal AC Input, our Open Frame PSUs are compatible with electrical standards worldwide. Integrated Active Boost PFC (Power Factor Correction) ensures high PF and compliance with EN 61000-3-2 harmonic current standards, helping reduce energy loss and maintain grid stability.
Internally, XJK’s Open Frame models adopt advanced Class D or Half-Bridge ZVS topologies, achieving efficiencies of up to 91%. This allows for optimized thermal management, reduced heat generation, and longer product life—key factors in today’s energy-conscious industrial landscape.
Built for durability, our Open Frame power supplies operate stably in extreme environments, withstanding temperatures from -10°C to +70°C, and altitudes up to 5000 meters. These units are ideal for integration into systems with tight space requirements and strict performance expectations.
Whether you’re powering factory automation, telecommunications base stations, or embedded computing systems, XJK’s Open Frame power supplies provide quiet operation, high power density, and consistent output, even under full load conditions.
With decades of experience and a commitment to OEM customization, XJK supports your projects with flexible voltage/output configurations, certification support, and fast prototyping.
Looking for a tailored Open Frame power solution?
Partner with XJK today to elevate your product with reliable, efficient internal power.
Contact us for datasheets, samples, or OEM/ODM inquiries.


Compact, Reliable, Industrial-Grade Performance
Designed with a Universal AC Input, our Open Frame PSUs are compatible with electrical standards worldwide. Integrated Active Boost PFC (Power Factor Correction) ensures high PF and compliance with EN 61000-3-2 harmonic current standards, helping reduce energy loss and maintain grid stability.
Internally, XJK’s Open Frame models adopt advanced Class D or Half-Bridge ZVS topologies, achieving efficiencies of up to 91%. This allows for optimized thermal management, reduced heat generation, and longer product life—key factors in today’s energy-conscious industrial landscape.
Built for durability, our Open Frame power supplies operate stably in extreme environments, withstanding temperatures from -10°C to +70°C, and altitudes up to 5000 meters. These units are ideal for integration into systems with tight space requirements and strict performance expectations.
Whether you’re powering factory automation, telecommunications base stations, or embedded computing systems, XJK’s Open Frame power supplies provide quiet operation, high power density, and consistent output, even under full load conditions.
With decades of experience and a commitment to OEM customization, XJK supports your projects with flexible voltage/output configurations, certification support, and fast prototyping.
Looking for a tailored Open Frame power solution?
Partner with XJK today to elevate your product with reliable, efficient internal power.
Contact us for datasheets, samples, or OEM/ODM inquiries.
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Open frame power supplies are AC/DC power conversion units without a protective enclosure. They are designed for integration inside end equipment, offering compact size, excellent thermal performance, and flexible installation for OEM applications.
Used for :

Our open frame power supplies are engineered for long-term reliability, high efficiency, and easy integration into commercial and industrial equipment. Available in multiple power levels and output configurations, they provide stable DC power while meeting international safety and EMC requirements.
Without an enclosed housing, open frame power supplies provide maximum flexibility for equipment manufacturers. Their compact footprint makes them ideal for embedded installation in devices where internal space is limited.
Designed with modern switching technology, our open frame power supplies achieve high conversion efficiency while minimizing heat generation and standby power consumption. Higher efficiency helps improve system reliability and reduce cooling requirements.
Supporting a universal AC input of 100–240VAC, our power supplies can be used in global markets without hardware changes, simplifying product development for international OEM projects.
Built-in protection mechanisms help safeguard both the power supply and connected equipment. Over Voltage Protection (OVP) Over Current Protection (OCP) Short Circuit Protection (SCP) Over Temperature Protection (OTP) (available on selected models)
Designed for 24/7 operation, our power supplies deliver stable output voltage with low ripple and noise, making them suitable for industrial control systems, communication equipment, and embedded electronics.
Selected models comply with international safety and EMC standards, including: IEC 62368-1 IEC 60601-1 (Medical Models) CE CB UKCA RoHS Customized certification support is also available for OEM projects.
Our open frame AC/DC power supplies are widely integrated into equipment that requires reliable internal power conversion, compact installation, and long service life.
An open frame power supply is an AC/DC power supply without an external enclosure. It is designed to be installed inside equipment by OEM manufacturers, providing compact size, flexible integration, and efficient power conversion.
An enclosed power supply includes a metal case for standalone installation, while an open frame power supply consists only of the PCB assembly. Open frame models offer a smaller footprint and are intended for installation inside end equipment where the system enclosure provides mechanical protection.
We offer a wide range of standard output voltages, including 5V, 9V, 12V, 15V, 19V, 24V, 36V, and 48V. Custom output voltages can also be developed for OEM projects.
Yes. We support OEM and ODM customization, including:
Open frame power supplies are commonly used in:
Depending on the model, certifications may include:
Please contact us for certification availability for your specific project.
Our open frame power supplies are available from 15W to 200W, with multiple output voltage options and customization support.
When selecting a power supply, you should consider:
If you’re unsure which model is suitable, our engineering team can recommend the best solution based on your application.
Whether you’re developing industrial equipment, medical devices, communication systems, or commercial electronics, selecting the right power supply is critical to product performance and long-term reliability.
Our engineering team can help you choose a standard model or develop a customized AC/DC open frame power supply tailored to your voltage, power, mechanical, and certification requirements.

