How the EIRE300 Can Help Balance Compliance and System Flexibility

Simplifying Design Integration: The streamlining of medical and industrial design can start with a power supply that does more while demanding less.

One of the big design considerations that must be considered when selecting a power supply for the global market is whether the end equipment will need to be Class I or Class II. The difference is in more than just the wiring, it impacts the safety certifications, insulation requirements, and overall system-level design. The EIRE300 series (Figure 1) from Vox Power helps to streamline the development process by allowing the use of a single part number for both Class I (grounded / protective earth) and Class II (double insulated) applications. Having this flexibility allows engineers to reduce the number of approved power supplies across different applications, making the testing and compliance process simpler regardless of market or architecture.

Figure 1: Typical EIRE300 Series power supply. (Image source: Vox Power)

Class I installations are commonly found in hospitals, labs, and industrial environments, and they rely on a good ground connection for safe operation so that current from a fault condition can be safely routed away from the user. In contrast to that, Class II installations are designed to be safe without the ground connection. Instead, they use reinforced insulation to protect users. This feature is essential for portable or in-home equipment where having a reliable earth ground is not guaranteed. With the EIRE300, engineers can serve both installation types using a single part number. This reduces engineering time while accelerating regulatory approvals.

In addition, being certified to both IEC/UL 60601-1 (Edition 3.2) and IEC/UL 62368-1 (3rd Edition), allows the EIRE300 to meet the requirements of medical and industrial applications. Designed to meet 60601-1 standards, the series provides 2 x MOPP isolation and low leakage current (<100 μA) to support BF-rated applications where direct or close patient contact is possible. The 62368-1 certification means easy integration into modern information technology and industrial applications that follow current hazard-based safety schemes, enabling it to be integrated into devices where mechanical design and safety go hand-in-hand.

Besides the safety certifications, the EIRE300 is also engineered for environments where electromagnetic performance is critical to system reliability. By meeting CISPR 11 (Class B) and EN 60601-1-2 Edition 4 standards for conducted and radiated emissions, it helps to ensure quiet system power for sensitive applications like diagnostic imaging, laboratory equipment, and compact control systems. EMC performance reduces design risk and integration time, especially when transitioning from a legacy or discontinued power supply.

The EIRE300 brings other practical advantages that simplify system design and integration. Standby power consumption as low as 0.25 W helps support compliance with global efficiency regulations but it also reduces the applications thermal load when in low-power states. The wide output voltage adjustment range also enables greater flexibility in supporting non-standard requirements without needing a full customization. And with a convection-cooled rating of 200 W at 115 VAC, outperforming many supplies in its class, and a compact form factor delivering up to 37.5 W/in³, the EIRE300 helps engineers maximize power without expanding the footprint.

Whether installed in a next-gen ventilator, compact laboratory instrument, or ruggedized industrial controller, the EIRE300 is engineered to eliminate design compromises — and to elevate what engineers can expect from a certified open-frame power platform.

Additional Resource:

https://www.digikey.com/en/videos/v/vox-power/vox-power-eire300-single-output-300w-open-frame-ac-dc-power-supply