Internal Power Supply (PSU)

Internal power supplies (PSUs) are designed to be integrated directly within equipment, providing regulated AC-DC power conversion as part of the device’s internal architecture. Commonly used in industrial systems, medical equipment, telecommunications hardware and networking devices, internal PSUs deliver stable DC output while remaining securely housed inside the product enclosure.

At Ideal Power, our range of internal power supply units includes multiple mounting formats to suit different installation requirements. Whether you are designing new equipment or upgrading an existing system, our PSUs are engineered for efficient power delivery, long-term reliability and compliance with recognised safety standards.

Types of Internal Power Supplies

Internal power supplies are available in several configurations, each suited to specific applications:

• DIN Rail PSU – Mounted onto a standard DIN rail, commonly used in industrial control and automation systems.
• Enclosed PSU – Housed within a protective metal casing to shield internal components and enhance safety.
• Open Frame / Chassis – Exposed frame design mounted within equipment for easy integration and airflow.
• PCB Mount – Compact units designed for direct mounting onto a printed circuit board.
• U-Frame PSU – Space-efficient open design mounted on a U-shaped frame for compact installations.

Each format is designed to support reliable and efficient internal power delivery while meeting the mechanical and electrical demands of the application.

Common Applications for Internal Power Supplies

Internal PSUs are widely used in:

• Industrial automation systems
• Medical and laboratory equipment
• Telecommunications and networking hardware
• Security and monitoring systems
• Embedded electronic devices

By integrating the power supply within the equipment, manufacturers can optimise system layout, improve cable management and maintain a controlled internal power environment.

How to Choose the Right Internal PSU

When selecting an internal power supply, consider the following:

• Mounting Format – Choose the configuration that matches your equipment design.
• Output Voltage and Current – Ensure the PSU meets total load requirements.
• Cooling and Ventilation – Consider airflow and thermal management within the enclosure.
• Compliance Requirements – Verify relevant safety and industry certifications.

Selecting the correct internal power supply ensures stable operation, efficient energy conversion and long-term reliability within integrated electronic systems.

Frequently Asked Questions

What types of products are included in the Internal power supplies (PSU) range?

Our internal power supply range includes DIN rail power supplies, enclosed power supplies, open frame chassis units, PCB mount power supplies, and U-frame power supplies. These products cover a wide range of output voltages and power ratings to support both compact designs and higher-power internal systems. Each product page provides clear electrical and mechanical specifications to support accurate comparison and selection.

How do I choose the right Internal power supplies (PSU) for my application?

When selecting from our internal power supplies (psu), start by defining the required input voltage, output voltage, and output current, along with any safety or regulatory approvals that apply to your product. You should also consider form factor, mounting method, thermal performance, and available space within the enclosure. If you need support, share your electrical requirements and operating conditions with our team and we will help identify suitable internal power supply options.

Are the internal power supplies (psu) certified and compliant with relevant safety standards?

Yes. Our internal power supplies (psu) are sourced from reputable manufacturers and are designed to meet relevant international safety and EMC standards for their intended markets. Individual datasheets and product pages list approvals and certifications, efficiency levels and other compliance information. If you need confirmation for a particular standard or application, please contact our technical team with the part number.

What are the typical lead times and is technical support available for internal power supplies (psu)?

Internal power supplies are supplied to order on standard manufacturer lead times. To confirm current lead times, please contact our sales team, who can advise based on your requirements. Our engineers are available to provide technical support, assist with cross-referencing, and advise on the most suitable option for your application.

Explore our extensive selection of internal power supplies, built for efficient power delivery, integration, and versatility. Contact us today to find the perfect solution for your systems.